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INTELLIGENT DRIVERS USING OPTICAL SENSING

Award Information

Agency:
Department of Defense
Branch:
Defense Advanced Research Projects Agency
Award ID:
77888
Program Year/Program:
2008 / STTR
Agency Tracking Number:
06ST1-0082
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
SCIENCE RESEARCH LABORATORY INC
15 Ward Street Somerville, MA -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 2008
Title: INTELLIGENT DRIVERS USING OPTICAL SENSING
Agency / Branch: DOD / DARPA
Contract: W31P4Q-08-C-0328
Award Amount: $749,779.00
 

Abstract:

The development of a practical, easily-implemented device that can extend the lifetimes of existing diode lasers would lead to extended service and lower costs and cost-of-ownership. Such a device extends the lifetimes of diode lasers by shutting off the supply current when formation of a potentially damaging current filament appears likely. This allows the diode to return to its initial state with no memory of filamentation. We have artificially generated optical transients by applying current pulses atop the normal, regulated drive currents of laser diodes to observe the result of such aberrant behavior of the laser's properties and lifetime. We have studied the optical and electrical behavior to correlate excursions in both that indicate performance-degrading faults. The plan is to use such optical transients as predictors of potentially damaging faults, and to use this to trigger a protection circuit that will shut down the drive current for a short time and allow the diode to return to a safe state before resuming operation. The optically-triggered protection circuit combined with a constant current supply will then be tested on LDAs to demonstrate that it increases the working lifetime of off-the-shelf laser diodes.

Principal Investigator:

Michael Booth
PI
6175471122
mbooth@srl.com

Business Contact:

Jonah Jacob
President
6175471122
jjacob@srl.com
Small Business Information at Submission:

SCIENCE RESEARCH LABORATORY, INC.
15 WARD STREET SOMERVILLE, MA 02143

EIN/Tax ID: 042786396
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
PENN STATE
ELECTRO-OPTICS CENTER
222 NORTHPOINTS BLVD
FREEPORT, PA 16229
Contact: Kevin White
Contact Phone: (724) 295-7019
RI Type: Nonprofit college or university