NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Optimized Biasing of Pump Laser Diodes in a Highly Reliable Metrology Source for Long-Duration Space MissionsOptical metrology system reliability during a prolonged space mission is often limited by the reliability of pump laser diodes. We developed a metrology laser pump module architecture that meets NASA SIM Lite instrument optical power and reliability requirements by combining the outputs of multiple single-mode pump diodes in a low-loss, high port count fiber coupler. We describe Monte-Carlo simulations used to calculate the reliability of the laser pump module and introduce a combined laser farm aging parameter that serves as a load-sharing optimization metric. Employing these tools, we select pump module architecture, operating conditions, biasing approach and perform parameter sensitivity studies to investigate the robustness of the obtained solution.
Document ID
20120003284
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Poberezhskiy, Ilya Y
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Chang, Daniel H.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Erlig, Herman
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 25, 2013
Publication Date
January 23, 2011
Subject Category
Lasers And Masers
Distribution Limits
Public
Copyright
Other
Keywords
808 mm diode pumps
reliable optical pumps
optical metrology
beam combining
NPRO lasers

Available Downloads

There are no available downloads for this record.
No Preview Available