High Average Power-Green Laser for Synchronous Photoinjection

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-06ER84491
Agency Tracking Number: 80231S06-I
Amount: $99,998.00
Phase: Phase I
Program: SBIR
Awards Year: 2006
Solicitation Year: 2005
Solicitation Topic Code: 48
Solicitation Number: DE-FG01-05ER05-28
Small Business Information
Aculight Corporation
11805 North Creek Parkway South, Suite 113, Bothell, WA, 98011
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Anping Liu
 (425) 482-1100
Business Contact
 Dennis Lowenthal
Title: Dr.
Phone: (425) 482-1100
Email: dennis.lowenthal@aculight.com
Research Institution
A high-quantum-efficiency long-lifetime photocathode is a key component for the synchronous photoinjection of GaAs photoemission guns, used in modern particle accelerators. High-power pulsed-laser sources, with picosecond pulse durations at GHz repetition rates, are needed to provide enough power to enable this application; yet, none are commercially available. This project will develop a highly efficient, high-average-power (~100 W) green laser source, based on second harmonic generation of a high power fiber laser, with variable pulse durations and repetition rates. This fiber-laser-based approach will provide a reliable, capable, cost-efficient, and extremely versatile laser light source to improve the performance of DOE¿s accelerators. Phase I, will design and construct an efficient front end for the laser source and demonstrate the flexibility of the high-rep-rate and short pulse waveforms. The front end will use fiber components and inline connections, with no mirrors or free-space propagation in the optical design. The front end developed in Phase I will provide enough power for the Phase II amplification and frequency conversion. Commercial Applications And Other Benefits as described by the Applicant: The high power green laser, combining high power and high brightness with low signal noise at high repetition rates, would have the potential to replace existing mode-locked DPSS lasers for medical, material processing, micromachining, semiconductor processing, and underwater communications

* information listed above is at the time of submission.

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