Two nonlinear crystals could make phase-insensitive all-optical transistor

Aug. 1, 1996
A report on cascaded second-order nonlinearities in optical materials opened the Nonlinear Optics sessions of the 1996 OSA Summer Topical Meetings (July 8?12, Maui, HI); sessions on adaptive optics and optical data storage were run concurrently. Cascading in second-

Two nonlinear crystals could make phase-insensitive all-optical transistor

A report on cascaded second-order nonlinearities in optical materials opened the Nonlinear Optics sessions of the 1996 OSA Summer Topical Meetings (July 8?12, Maui, HI); sessions on adaptive optics and optical data storage were run concurrently. Cascading in second-

harmonic-generating crystals can be exploited to produce a phase-insensitive all-optical

transistor (AOT), unlike other proposed AOTs that require coherence between signal and pum¥waves. A grou¥from the University of Central Florida/CREOL (Orlando, FL) has proposed an AOT incorporating a pair of type II phase-matched second-order nonlinear crystals: the coupler and the amplifier. A beamsplitter divides the system pum¥beam into two orthogonally polarized components, one of which passes through the coupler, where it is modulated by a weak, temporally incoherent signal beam with a gain of less than unity. Before entering the amplifier crystal, the modulated beam recombines with the unmodulated pum¥component. In the crystal, small irradiance variations between the modulated and unmodulated beams result in the desired large modulations in the total transmitted fundamental radiation.

The grou¥has demonstrated the coupler and amplifier components of the AOT; work on a device combining the two is underway. Collaborator Eric Van Stryland presented experimental results from the demonstrations and mathematical models of the full AOT at the topical meeting.

Sponsored Recommendations

Advancing Neuroscience Using High-Precision 3D Printing

March 7, 2025
Learn how Cold Spring Harbor Laboratory Used High-Precision 3D Printing to Advance Neuroscience Research using 3D Printed Optical Drives.

From Prototyping to Production: How High-Precision 3D Printing is Reinventing Electronics Manufacturing

March 7, 2025
Learn how micro 3D printing is enabling miniaturization. As products get smaller the challenge to manufacture small parts increases.

Sputtered Thin-film Coatings

Feb. 27, 2025
Optical thin-film coatings can be deposited by a variety of methods. Learn about 2 traditional methods and a deposition process called sputtering.

What are Notch Filters?

Feb. 27, 2025
Notch filters are ideal for applications that require nearly complete rejection of a laser line while passing as much non-laser light as possible.

Voice your opinion!

To join the conversation, and become an exclusive member of Laser Focus World, create an account today!