High Power Compact Single-Frequency Volume Bragg Er-Doped Fiber Laser

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNL07AA95P
Agency Tracking Number: 066478
Amount: $99,989.00
Phase: Phase I
Program: SBIR
Awards Year: 2007
Solitcitation Year: 2006
Solitcitation Topic Code: S6.02
Solitcitation Number: N/A
Small Business Information
Light Processing & Technologies, Inc. d/b/a OptiGrate
3267 Progress Drive, Orlando, FL, 32826-3230
Duns: 120669085
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Vadim Smirnov
 Principal Investigator
 (407) 590-4889
 VSmirnov@OptiGrate.com
Business Contact
 Robert Giffin
Title: Business Official
Phone: (407) 381-4115
Email: rgiffin@optigrate.com
Research Institution
N/A
Abstract
The purpose of this NASA SBIR Phase I proposal is to develop the prototype of a compact single-frequency mode – one longitudinal and one transverse mode – laser oscillator (SFM) using a pulse pumped Er-doped multimode fiber as an active element inserted in the external cavity. The main feature of the proposed design is the use of volume transmitting or reflecting Bragg gratings for longitudinal and transverse mode selection in an external laser resonator. The technical approach for the development such a laser is based on application a new type of robust optical element as one of the cavity mirrors, a volume Bragg grating recorded in photo-thermo-refractive (PTR) glass. The selectivity of volume Bragg gratings to wavelengths, angles of incidence and at certain conditions to the state of incident polarization could be successfully applied in design of a novel type of a laser resonator. The use of volume Bragg gratings for mode selection instead of conventional fiber Bragg gratings will result in decreasing of power density by several orders of magnitude and, therefore, will increase threshold of laser damage and other nonlinear processes dramatically.

* information listed above is at the time of submission.

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