High Power, Narrow Linewidth 2-micron Diode Laser Sources

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: HQ0006-10-C-7368
Agency Tracking Number: B093-040-0407
Amount: $99,893.00
Phase: Phase I
Program: SBIR
Awards Year: 2010
Solicitation Year: 2009
Solicitation Topic Code: MDA09-040
Solicitation Number: 2009.3
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) 713-5230
Business Contact
 Mike Cooper
Title: Business Unit Controller
Phone: (360) 713-5249
Email: mike.cooper@nlight.net
Research Institution
High power mid-IR amplifiers based on Thulium or Holmium doped fibers typically require a narrow spectral linewidth source to serve as the seed laser. While conventional injection seeding sources (such as DFB diode lasers and rare-earth doped solid-state microchip lasers) are available at 1.5 microns, similar sources which operate at 2.0 microns are not. In order to fill this need, nLight proposes the development of high power, narrow linewidth 2.0 micron diode laser seed sources based on our well-established, wavelength-scalable, industry-leading InP semiconductor laser design. Optical feedback provided by external fiber Bragg gratings serves to narrow the semiconductor linewidth to the appropriate level. These lasers are expected to deliver very high seed power (>250 mW) at 2.0 microns with a spectral linewidth less than 10 MHz. The external feedback approach will allow the linewidth to be easily tailored to meet the individual needs of varying applications, increasing the commercial relevance of the proposed approach. At the end of the proposed Phase 1 effort (and at the request of the MDA), prototype narrow-linewidth 2.0 micron lasers will be packaged, efficiently coupled to single mode fibers, and delivered to the MDA or a recipient of their choosing

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

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