Built-In Filament Control for Long Lifetime in Broad Area Diode Lasers

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: W31P4Q-08-C-0372
Agency Tracking Number: 06ST1-0081
Amount: $1,046,610.00
Phase: Phase II
Program: STTR
Awards Year: 2008
Solicitation Year: 2006
Solicitation Topic Code: ST061-009
Solicitation Number: N/A
Small Business Information
5408 NE 88th Street, Bldg E, Vancouver, WA, 98665
DUNS: 799811646
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Paul Leisher
 Device Engineer
 (360) 907-8347
 paul.leisher@nlight.net
Business Contact
 Jake Bell
Title: Vice President, Defense Group
Phone: (360) 713-5230
Email: jake.bell@nlight.net
Research Institution
 UNIV. OF ILLINOIS AT URBANA-CH
 Kent D Choquette
 208 N. Wright Street
Urbana, IL, 61801
 (217) 265-0563
 Nonprofit college or university
Abstract
In this Phase 2 program, nLight intends to demonstrate high-reliability / high-efficiency 808-nm broad area diode lasers. The root-cause of the failure modes of diode lasers investigated under Phase 1 will be addressed in this program. Collaborative work on built-in filament control by etching holes will continue in this program. Prototype designs first demonstrated by focused ion beam processing (a known reliability hazard) at UIUC will be optimized and fabricated using wafer-scale processing techniques which are amenable to high-reliability operation. The primary technical objective of this program is the demonstration of a high-efficiency (>65%) laser diode bar operating at 808-nm rated at 200 W with a > 15,000-hr operation lifetime (MTTF), qualified with a high degree of statistical confidence.

* Information listed above is at the time of submission. *

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