Lasers & Sources

The laserfocusworld.com Lasers & Sources channel features articles and other content that discuss the design and applications of all types of lasers, amplifiers, and other advanced sources like LEDs.
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Highlights

(Image credit: Stephen Sweeney)
Cryogenic testing setup in Sweeney’s lab: A solar cell is held under cryogenic conditions (196°C) while being powered by a laser.
Lasers & Sources

Space lasers: What’s up with that?

Nov. 20, 2024
In a Q&A with Stephen Sweeney, a professor of photonics and nanotechnology at the University of Glasgow, he answers our questions about what’s up with space lasers and his work...
(Image credit: Ayar Labs)
TeraPHY optical I/O chiplet with 4 Terabits/s bidirectional bandwidth.
Optics

A shift to photonics for data center networks and AI is underway

Nov. 4, 2024
Ayar Labs’ Terry Thorn, vice president of commercial operations, shares details about the company’s second-gen optical chiplet and light source—with engineering samples out in...
(Image credit: ESA–C.Carreau)
Artist’s impression of LISA Pathfinder, ESA’s mission to test technology for future gravitational-wave observatories in space.
Lasers & Sources

Easier space qualification for laser diodes

Oct. 31, 2024
Space qualification is one of the most demanding qualifications within the industry. But there are ways to save time and money by using what space insiders call “heritage.”
(Image credit: Edmund Optics)
FIGURE 1. The refractive index of UV-grade fused silica as a function of wavelength (left); this dispersion can lead to temporal distortion for ultrafast laser pulses. Attempting to focus a white light source through a single lens results in different focal planes for the various component colors (right); this is analogous to how ultrashort pulses experience temporal distortion when passing through a medium.
Lasers & Sources

A guide to group delay dispersion for ultrafast lasers

Oct. 17, 2024
Managing the ultrashort pulse durations of ultrafast lasers can be a daunting task, especially if you are unfamiliar with their unique temporal characteristics. Understanding ...
(Photo credit: Chromacity Ltd.)
Julian Hayes, CEO of Chromacity Ltd.
Lasers & Sources

Quantum world, meet Chromacity Ltd.

Oct. 16, 2024
In this Q&A with Chromacity CEO Julian Hayes, he introduces us to the company, and it’ll be nearly impossible for anyone to ever top his company fun facts.
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Home

2024 Edge Award Winners

Sept. 20, 2024
The voting is complete and we can now show you the winners of the 2024 Edge Award competition.
(Image credit: WITT)
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Software & Accessories

Gas filter has use in laser systems

Sept. 16, 2024
Gas Filter 77 offers pore sizes as low as ~ 0.5 µm.
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Executive Forum

Photonics IP Update: August 2024

Sept. 6, 2024
This roundup summarizes photonics-related patent litigation and Patent Office procedures for August 2024.
(Image credit: Marktech Optoelectronics)
Detectors & Imaging

Multiple SWIR wavelength emitter-detector has use in IR spectroscopy

Sept. 4, 2024
The MTMD142345PDT38 multiwavelength shortwave-infrared (SWIR) wavelength emitter-detector provides SWIR detection in the 600–1750 nm range.