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Proceedings Paper

Long-term stability of SLED as a lightsource for fiber optic sensors
Author(s): A. T. Semenov; Vladimir R. Shidlovski; Dmitry R. Shidlovski
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Paper Abstract

In this report we summarize the first, to our knowledge, results on complex analysis of long-term stability of medium power 820 nm band superluminescent diodes (SLEDs, or SLDs) and singlemode fiber pigtailed modules. Up to 100,000 h MTTF was estimated from accelerated and nominal operation tests of emitters and modules in constant current (ACC) mode; less than 1000 ppm changes of mean wavelength over 30,000 h of operation are predicted from these tests. It is sown that constant power (APC) driving may result in considerable lifetime increasing; lifetime estimations from tests results in APC lifetime 300,000 hours, that is comparable to laser diodes. Twice less wavelength changes, 500 ppm, were obtained in case of APC driving of SLDs.

Paper Details

Date Published: 9 December 1999
PDF: 7 pages
Proc. SPIE 3860, Fiber Optic Sensor Technology and Applications, (9 December 1999); doi: 10.1117/12.372996
Show Author Affiliations
A. T. Semenov, SUPERLUM Ltd. (Russia)
Vladimir R. Shidlovski, SUPERLUM Ltd. (Russia)
Dmitry R. Shidlovski, SUPERLUM Ltd. (Russia)


Published in SPIE Proceedings Vol. 3860:
Fiber Optic Sensor Technology and Applications
Michael A. Marcus; Brian Culshaw, Editor(s)

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