Coherent Corp

Saxonburg, PA 16056

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About Coherent Corp

26,000+

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375 Saxonburg Blvd
Saxonburg, PA 16056
United States
http://www.coherent.com
724-352-4455

More Info on Coherent Corp

Coherent Corp. is a global leader in materials, networking, and lasers for the industrial, communications, electronics, and instrumentation markets. The company is headquartered in Saxonburg, Pennsylvania and manufactures high-quality materials and optics for industrial lasers.

Products

Courtesy of Coherent Corp
The LightSmyth™ diffraction gratings and grisms from Coherent have set the industry standard in terms of their high performance and quality. With decades of product deployment...

Articles

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The Chameleon Discovery LX femtosecond laser provides ultrashort 100-fs pulses.
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A high-power F-theta lens has uses in additive manufacturing, EV battery welding, and laser cleaning. It operates from deep-ultraviolet (deep-UV) to infrared (IR) wavelengths ...
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The ARM FL20D fiber laser incorporates a center beam and two coaxial ring beams, all with independent control.
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An uncooled, dual-chip, 980-nm micro-pump laser provides 2 × 400 mW output.
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The calorimeter-based PM10K+ laser power sensor measures power output of continuous-wave (CW) lasers up to 10 kW in
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G10 high-power, uncooled pump laser modules are built on the latest G10 series laser diode technology.
(Image credit: Coherent)
A family of aberration-correcting, high-efficiency grisms and transmission gratings can encompass the entire extended C+L band in a single optic.
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An 808 nm diode laser bar employs a two-junction configuration to deliver 200 W of output with 100 A of input current.
The OBIS 640 XT diode-pumped solid-state (DPSS) laser module offers up to 1000 mW output at 640 nm.
800G ZR/ZR+ transceivers are digital coherent optics that plug directly into QSFP-DD and OSFP transceiver slots on IP routers.

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A pump laser module with 1200 mW of output power in a 10-pin butterfly package is designed for optical amplification in DWDM networks.
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Matrix nanosecond pulsed UV diode-pumped solid-state (DPSS) lasers are available with 5 and 10 W output power at pulse repetition rates from 50 to 300 kHz.
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The Monaco 345-25-50 femtosecond laser delivers pulses up to 25 µJ at repetition rates up to 2 MHz in the UV with a pulse width below 400 fs.
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Adjustable ring mode (ARM) lasers, part of the HighLight FL-ARM laser series, target deep welding applications in battery manufacturing for electric vehicles (EVs).
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A 1300 nm high-power continuous-wave (CW) distributed-feedback (DFB) laser diode enables 400G to 1.6T silicon photonics-based transceivers.
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905 nm edge-emitting semiconductor lasers emit up to 100 W of optical power in nanosecond pulses.
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The HyperRapid NXT industrial picosecond laser offers 10 W output power at 266 nm in the deep-UV (DUV).
(Photo credit: SPIE)
Attendees make their way into the SPIE Photonics West 2022 exhibition hall.
Get a first look at what will be shown on the SPIE Photonics West 2023 exhibit floor.
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The BIMO-FSC3-Z-HP has a power rating up to 30 kW, the BIMO-FSC3-L up to 20 kW, and the BIMO-FSC3-Z up to 12 kW.
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I-Temp micro-pump lasers maintain output power of 400 mW with less than 2 W of power consumption and remain wavelength-locked with a fiber Bragg grating.
FIGURE 1. In a flow cytometer, fluorescently labeled cells pass single-file in a flow stream and are illuminated by several different laser wavelengths. The resulting fluorescence is detected after separation into different wavelength bands.
Multiwavelength laser engines, which combine laser sources with pre-aligned and stabilized free-space focusing optics or integrated fiber delivery systems, simplify alignment ...
(Courtesy of R. Kato/Tokushima University)
In a schematic of a robust, long-duration TERS imaging technique, a metallic nanotip images several points in a large area of a WS2 monolayer placed on a gold thin film (a). A superposition of two different intensity images, pure WS2 at 422 cm-1 and defect scattering of WS2 at 410 cm-1, reveals a high density of nanoscale protrusions in a large-area far-field confocal Raman image (b). A histogram of the same modes shows a defect density of 5.2% in the WS2 sample (c).
Advances in tip-enhanced Raman spectroscopy (TERS) can improve spatial resolution and stability, enabling longer imaging and spectroscopic characterization of sub-diffraction-...
FIGURE 1. Gantry systems can produce more consistent welds than scanner systems because they don’t create any beam distortion, but they’re slower, which becomes an issue when welding larger parts.
Prismatic battery can-to-cap welding presents challenges in high-volume production. Welds must be economically viable and deliver a hermetic seal that maintains its integrity ...
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It’s time to recap all the photonics business news that was announced in June 2022.
FIGURE 1. Three-photon excitation uses 3x the wavelength as conventional one-photon absorption. The 1300 nm excitation scheme shown here is for GCaMP6s, a genetically expressed calcium indicator. Recently Chris Xu and colleagues have demonstrated that 1300 nm can also excite longer-wavelength dyes such as Texas Red, a fluorescent dye that can be bonded to antibodies to label specific cellular components.
Three-photon imaging and two-photon optogenetic stimulation both benefit from the latest laser developments targeted squarely at neuroscience research.
(Courtesy of Frank Lison, Toptica)
The booth parties at LASER World of PHOTONICS 2022 were plenty and crowded.
Germany’s biggest photonics trade show came back this year with plenty of new technology. Beyond all the fancy quantum programs, there are several surprising trends in areas including...
FIGURE 1. Relative system revenue for Coherent tube cutting machines based on fiber lasers and femtosecond lasers.
As advances in femtosecond laser cutting technology intensify, demand is surging.
FIGURE 1. The multipass erosion cutting process.
Laser erosion is the removal of thin layers from a workpiece.
FIGURE 1. In flow cytometry, cells move in single file in a narrow flow stream, where they are excited by one or more laser beams.
As the need for more personalized medicine increases, researchers are finding that new laser wavelengths and integrated multiwavelength laser light engines are enabling high-dimensional...
Andy Mattes, President & CEO of Coherent.
Laser Focus World Editor in Chief John Lewis had a lively conversation with the CEO of Coherent, Andy Mattes.
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Coherent will enter into a merger agreement with II-VI on the terms of the March 17, 2021 proposal, therefore terminating the Lumentum merger agreement.
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Adjustable-mode fiber lasers successfully weld copper.
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Under the terms of the revised II-VI proposal, Coherent’s shareholders would receive $195.00 in cash and 1.0 II-VI common share for each Coherent common share.
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The transaction between both laser companies, if approved, is expected to close in the second half of calendar-year 2021.
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II-VI’s proposal represents a 24.0% premium over the implied value of the Lumentum transaction and a 9.8% premium over the implied value of MKS Instruments’ acquisition proposal...
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The offer, which falls on the heels of Lumentum’s recent announcement to buy Coherent, represents a 16% premium over the implied value of the Lumentum transaction.
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The Lasers & Photonics Marketplace Seminar will explore the impact of COVID-19 on photonics businesses, with a great lineup of speakers on the agenda.
FIGURE 1. Near-infrared absorption spectrum of Nd:YVO4. For many years, laser designers exclusively targeted pumping the strong peak at 808 nm. The crystal is normally pumped along its b-axis, and the separate plots refer to light polarized to the a- and c-axes.
Laser diode pump modules emitting in a longer wavelength window dramatically lower the thermal load challenges in DPSS lasers, simplifying power scaling.
(Credit: Gerd Altmann/Pixabay)
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The acquisition will significantly expand Lumentum's penetration of the more-than-$10 billion market for lasers and photonics outside of communications and 3D sensing.
FIGURE 1. In SCAPE, a light sheet is formed at an oblique angle by off-axis illumination of the primary microscope objective with a line profile beam (a); SCAPE builds a volumetric image by scanning the light sheet while capturing a series of images of the illuminated plane (b).
An innovative laser fluorescence technique, swept confocally aligned planar excitation (SCAPE) microscopy, overcomes the limitations of earlier methods and offers broad life sciences...
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Schematic illustration of the box geometry used in the laboratory of Prof. Hebin Li to perform 2D spectroscopy. The non-collinear arrangement of the multiple pulses makes this...
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Two-photon microscopy methods need fast on/off digital modulation of the ultrafast laser beam. This whitepaper explains how and why Coherent lasers now provide optional direct...
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Researchers in Japan have combined femtosecond pump-probe laser techniques with a STM to study carrier dynamics with sub-nanometer spatial resolution and femtosecond temporal ...
THz-Raman spectroscopy is a proven method to collect robust and simultaneous structural and chemical compositional information. This technology has evolved from a relative novelty...
High-energy, versatile ultrafast ytterbium amplifier suitable for time-resolved spectroscopy and material processing applications.The newest member of the Monaco family, the Monaco...
Axon Fixed Wavelength Femtosecond LasersCompact and cost-effective ultrafast lasers for life sciences and instrumentationThe Axon family of lasers is a suite of compact, air-cooled...
(Courtesy of Morgan Trassin)
FIGURE 1. At ETH Zurich, an Astrella amplifier maintains output stability in spite of its proximity to a deposition chamber that reaches internal temperatures as high as 950°C.
A look is taken at how the industrial approach to reliability in ultrafast scientific lasers has resulted in research tools that deliver on their promise.
Hospitals and other health care providers can benefit greatly from the ability to decontaminate masks and other equipment, thus allowing reuse. Exposure to UV-C radiation has ...
Schematic illustration of the box geometry used in the laboratory of Prof. Hebin Li to perform 2D spectroscopy. The non-collinear arrangement of the multiple pulses makes this...
The Couillaud prize is awarded jointly by Coherent and the Optical Society of America (OSA) in memory of Dr. Bernard J. Couillaud, who was a widely recognized industry leader ...
Astrella HEHighest pulse energy, one-box, titanium:sapphire amplifier for demanding femtosecond scientific applications.Recently introduced at Photonics West (San Francisco 2020...
The low-frequency (terahertz) portion of the Raman spectrum of sulfur shows dramatic differences between the different phases.
Volume holographic gratings extend Raman spectrometers based on visible lasers into the traditionally “difficult” terahertz vibrational energy domain.
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The HighLight DL HPS industrial diode laser has output of 1 to 4 kW for systems integrators and users performing metal cladding, heat treating, brazing, and welding.
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PM1K+, PM3K+, and PM6K+ water-cooled, thermopile sensors incorporate a BB+ broadband coating to measure power of continuous-wave or modulated lasers up to 1 kW, 3 kW, and 6 kW...
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This article presents work that has demonstrated the ability to produce laser welds at quality and throughput rates compatible with the requirements of automotive and electronics...
Credit: Gerd Altmann/Pixabay
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Laser provider Coherent and its Board of Directors has named Andreas “Andy” W. Mattes as the company’s new President and CEO and a member of the Board of Directors.
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The Astrella HE one-box femtosecond amplifier delivers up to 9 mJ at a repetition rate of 1 kHz.
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The Center will be the source for all Coherent HighLight fiber lasers and will house an applications lab containing the full range of Coherent's fiber lasers.
(Courtesy of the Fleming group)
FIGURE 1. A 2D electronic spectrum contains many different types of information.
Ti:sapphire and ytterbium femtosecond amplifier technologies—one mature, the other quite dynamic—currently provide complementary performance, so the optimum choice is really application...
John Ambroseo, President and CEO of Coherent.
An interview with the president and CEO of Coherent reveals a laser industry still changing, driven by commodization and continual advances in technologies and applications.
FIGURE 1. An aluminum prismatic battery seam seal is shown, where the cross-section (a) and longitudinal section (b) clearly show no porosity.
Welding technology delivers welds with reduced spatter and improved metallurgical characteristics.
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The TR-Series terahertz Raman spectroscopy modules deliver spectral information in the terahertz frequency range.
FIGURE 1. High-power diode laser systems for industry are being augmented with improved beam-delivery optics, compact rack-mounted configurations, and simplified cooling.
Recent advances in diode packaging and implementation are transforming the utility and economics of applications for high-power diode lasers.
FIGURE 1. The Cobolt Skyra multiline laser for flow cytometry (inset) is stable in both output beam power (a) and in pointing stability under temperature excursions (b).
Single- and multiline lasers with wavelengths across the visible spectrum and beyond allow matching with numerous applications.
Ondax manufactures volume holographic gratings (VHGs), wavelength-stabilized diode lasers, and THz-Raman systems.
FIGURE 1. These total internal reflection fluorescence microscopy images were obtained using two excitation lasers combined in the Coherent Galaxy laser combiner; as part of research on the binding of actin filaments, the red signal is from Cy5-labeled Tm1A (protein) fluorescence excited at 640 nm, and the green signal is due to Alexa488 labeled actin excited at 488 nm. [1]
While laser wavelength and power are obvious critical parameters, there are numerous other factors to consider when specifying an optical microscope illumination system.
FIGURE 1. The multimodal endoscope concept, developed by researchers at Institut Fresnel, includes a piezo tube actuator that scans a miniature objective in a typical spiral pattern; the system based on this schematic performs multimodal imaging at high resolution, making a step toward real-time, intraoperative, label-free imaging.
Cancer diagnosis gets a boost from femtosecond laser light delivered through hollow-core fiber.
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The FLBK40 is a modular beam delivery system that includes four different focal length collimators with QB connectors.
FIGURE 1. This small two-dimensional barcode mark produced on metal is of a type used in the automotive industry.
A picosecond laser technique satisfies the need for permanent unique device identifier (UDI) marking of stainless steel medical devices without requiring postprocessing.
(Courtesy of Draper)
FIGURE 1. A prototype cyborg dragonfly carries sensors and a photovoltaic power supply; the addition of optogenetically controlled steering will complete the conversion of this insect into a tiny externally controlled drone that can continually power itself by pausing to eat other insects.
Optics and photonics contribute hugely to the digital revolution and are in turn furthered by it. Some of these contributions are evident to the average tech-savvy but nonspecialist...
FIGURE 1. The first commercial excimer laser was the Lambda Physik EMG 500, which produced a pulse energy of 220 mJ at 248 nm, with a repetition rate up to 20 Hz.
Despite its middle-aged standing in the laser community, the excimer laser is a high-power source of UV and DUV light with no equal in certain critical applications.
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A fiber-to-fiber coupler enables the use of replaceable fiber-optic cables so that integral components of the fiber laser are not exposed to optomechanical damage in harsh industrial...
FIGURE 1. In flow cytometry, cells flow past multiple focused laser beams that are usually arranged as a sequence of elliptical foci; the use of multiple wavelengths enables cells to be assigned by a larger number of sort criteria.
Application-specific optically pumped semiconductor laser modules incorporate source, optics, and electronics for simple access to multiwavelength laser excitation.
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The RQB fiber optic cables have use with fiber lasers operating at continuous-wave power levels up to 1.5 kW, as well as pulsed lasers as high as 1 MW.
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The Cx-10 CO2 laser delivers a short pulse fall time at 120 W, which translates into a smaller heat-affected zone on the workpiece.
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Genesis Taipan HD series light-show and entertainment lasers all offer TEM00 beam characteristics.
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The OBIS 405 LX violet laser provides more than 250 mW at 405 nm in a 70 x 40 x 38 mm self-contained platform.
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Stingray µFocus laser line generators enable detection of smaller features in machine vision applications based on triangulation.
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The Opera-F optical parametric amplifier (OPA) provides sub-100 fs pulse duration, 3 W power, 3 µJ pulse energy, and 1 MHz pulse repetition.
(Courtesy of Becton Dickinson)
FIGURE 1. Using multiple laser wavelengths, the BD FACSymphony system is a novel cell analyzer that enables simultaneous measurement of up to 50 different characteristics of a single cell.
This year is Coherent's 50th anniversary and, in many ways, the company's history and success mirror such trends in the laser industry.
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The OBIS CORE LS optically pumped semiconductor laser is optimized for analytical instrumentation.
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The HyperRapid NX product range includes 1064 nm output models with pulse energies to 250 μJ (10 ps pulse duration, typical) at repetition rates to 2 MHz.
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The AVIA NX Q-switched diode-pumped, solid-state (DPSS) lasers deliver up to 65 W of average power at 532 nm from a laser head that measures
Coherent also supplied other lasers for LIGO and polished some of the large-aperture optics.
(Courtesy of IPG Photonics)
FIGURE 1. The cylindrical surface of a bore for an automobile engine is micromachined using a 2 kW single-mode fiber laser from IPG Photonics, then sprayed with plasma to create a hard coating that replaces conventional cylinder liners. Laser-machined microgrooves help the resulting coating to adhere to the cylinder.
Today's high-power CW fiber lasers have become naturals at reliable, capable materials processing.
The boards of directors have approved a definitive agreement under which Coherent will acquire Rofin for $942 million dollars.
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A low-fill-factor, 35 W continuous-wave-rated diode laser bar emitting at 1470 nm is designed for fiber coupling and optical beam combining, as well as direct applications in ...
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The Fidelity 10 and Fidelity 18 ultrafast fiber lasers offer 10 and 18 W of output power, respectively.
FIGURE 1. As seen in this schematic, the phase-mask method of FBG writing produces an interference pattern that projects downward through space onto an optical fiber (top), resulting in evenly spaced FBG pattern in to fiber (bottom).
An interference lithography based production system enables pushbutton fabrication of fiber Bragg gratings (FBGs) for remote fiber sensing.
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The Highlight FL series fiber laser delivers output powers to 4 kW.
(Courtesy of Gentec-EO USA)
FIGURE 1. A Gentec Beamage-4M CMOS camera (a) and associated beam-tracking software (b) allow the alignment of the centroid of one laser beam to that of a second beam, enabling near- and far-field relative alignment of the beams.
Measuring the properties of a laser beam can be done in several ways; all are reliable, accurate, and fast.
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The Revolution series of Q-switched green pulsed lasers provide average power up to 80 W at a wavelength of 527 nm.
(Courtesy of Coherent)
Cross sections of 0.7-mm-thick Corning CT24 glass are taken with a Nomarski differential interference contrast microscope. The piece cut with a CO2 laser shows residual stress (a), while the cut produced with the CO laser is defect-free (b).
Coherent has unveiled a CO laser designed for materials-processing applications such as glass cutting, among other uses.
(Courtesy of Adam Packer, Häusser lab, University College London)
Optogenetics microscopy setup: A ytterbium fiber laser (Coherent Fidelity), which is used primarily for photoactivation, is used in conjunction with a tunable ultrafast laser (Coherent Chameleon; background).
The desire of optogenetics researchers to stimulate and probe a higher number of neurons in larger volumes with improved specificity—and at single-neuron resolution—is driving...
(Courtesy of Toptica)
FIGURE 1. A diagram shows the evolution of ultrafast lasers from the original dye lasers to more-recent solid-state and fiber-based lasers.
The femtosecond-scale pulse durations of ultrafast lasers are ideal for science, capturing physical and biological processes that normally happen too fast to measure.
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AVIA series Q-switched, diode-pumped, solid-state lasers are designed for materials processing applications in microelectronics fabrication and packaging, such as via hole drilling...
FIGURE 1. The original Sanger sequencing method was based on terminated polymerizations and labeling with radioactive nucleotides followed by length separation using electrophoresis on gel plates. It was modified to use fluorescent nucleotides, capillary electrophoresis separation, and laser detection, enabling first-generation automation.
DNA sequencing based on laser-excited fluorescence is characterized by dramatic increases in throughput, equally impressive reductions in cost, and diverse technological innovations...
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The Chameleon Discovery high-power, dual-wavelength laser is continuously tunable from 680 to 1300 nm, with short pulse width (100 fs) and power up to 1.4 W.
(Courtesy Christian Eggeling and Alf Honigman)
FIGURE 1. STED microscopy overlaps a donut-shaped beam (for spatially selective photobleaching) with a Gaussian beam for fluorescence excitation. As the STED beam intensity is increased, it smoothly constricts the non-bleached area of the sample beyond the diffraction limit.
Fluorescence detection techniques for applications such as cytometry, microscopy, and sequencing continue to advance with support from evolving laser sources such as optically...
(Courtesy of DILAS)
FIGURE 1. The output beam of a 200 W laser-diode array made by DALSA and used to enhance MRI imaging is hexagonal with a beam size of ~63 mm.
With their high-power density, high efficiency, and long life, laser-diode arrays are the essential light source for materials processing, laser pumping, and other applications...
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The RAPID NX laser is designed for industrial applications including high-value marking, surface structuring, photovoltaics manufacturing, and LED dicing.
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The LabMax-Pro SSIM laser power meter works with the company’s PowerMax-Pro sensors to enable high speed measurements of lasers from 300 nm to 11 micron.
FIGURE 1. An earlier version of optical mount (a) is compared with the final version (b) used in a femtosecond laser; the final version incorporates concepts from industrial lasers. The final version is more compliant with externally induced vibration and temperature-change cycles.
By taking advantage of expertise from the world of industrial lasers, ultrafast lasers have become simpler and more reliable, yielding improvements in cost of data and data throughput...
(Images courtesy of the Campagnola lab, University of Wisconsin-Madison)
These second-harmonic-generation (SHG) images depict single optical sections of ex vivo human ovarian tissue. The malignant tumors are high-grade serous tumors as classified as pathology (left column). The field size in each case is 170 × 170 μm. The images were acquired at 40X 0.8 NA at zoom 2 using 890 nm excitation in the forward detection, isolated with a bandpass filter, and detected by a single-photon-counting photomultiplier.
A new generation of 1055 nm ultrafast fiber lasers maximizes the productivity of nonlinear microscopy systems. The lasers promise to enable the translation of such label-free ...
(Courtesy of Power Technology)
FIGURE 1. An iLLUMINA RGB laser projector containing red- and blue-emitting LDs is shown in a home-theater mockup; this product, which produces a wider color gamut than conventional projectors, will be sized up for movie-cinema use.
Green-, blue-, and red-emitting laser diodes are used alone or in combination for multifarious uses, often with enhancements such as fiber-coupling and wavelength stabilization...
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The Daytona HE UV fiber laser provides output at 355 nm in nanosecond and shorter pulses with peak powers of >45 kW (at repetition rates up to 525 kHz).
(Image: Coherent, Inc.)
Coherent creates piezoelectric thin-film detector that outdoes photodiodes and thermopiles for high-speed laser measurement.
At SPIE Photonics West 2014 (1 to 6 Feb. 2014; San Francisco, CA), Coherent, Inc. introduced a high-speed, large-area, damage-resistant thin-film optical detector that is not ...
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Harbin Institute of Technology researchers have created a high-quality Fabry-Perot interferometer (FPI) cavity with flat axial surfaces suitable for sensing the refractive index...