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Proceedings Paper

High-power single emitters for fiber laser pumping across 8xx nm-9xx nm wavelength bands
Author(s): Moshe Levy; Noam Rappaport; Genadi Klumel; Moshe Shamay; Renana Tessler; Dan Yanson; Shalom Cohen; Yaroslav Don; Yoram Karni
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Paper Abstract

Fiber lasers require diode laser pumps of ever increasing power and brightness delivered via low-NA multimode fiber. The preferred fiber pump construction is based on the combination of the outputs of several diode lasers (single emitters) in single-strand multimode delivery fiber with NA ≤ 0.15. We report on the recent advances in the reliability and output power of single emitters at several wavelengths from 800 nm to 980 nm, with an emitting aperture optimized for coupling into 105 μm core fiber. By the use of long laser cavities and low-loss epitaxal design, we have achieved single emitter powers close to 20 W. Lifetest data from these emitters under high optical load are presented and analyzed using a reliability model.

Paper Details

Date Published: 8 February 2012
PDF: 9 pages
Proc. SPIE 8241, High-Power Diode Laser Technology and Applications X, 82410A (8 February 2012); doi: 10.1117/12.909016
Show Author Affiliations
Moshe Levy, SCD Semiconductor Devices (Israel)
Noam Rappaport, SCD Semiconductor Devices (Israel)
Genadi Klumel, SCD Semiconductor Devices (Israel)
Moshe Shamay, SCD Semiconductor Devices (Israel)
Renana Tessler, SCD Semiconductor Devices (Israel)
Dan Yanson, SCD Semiconductor Devices (Israel)
Shalom Cohen, SCD Semiconductor Devices (Israel)
Yaroslav Don, SCD Semiconductor Devices (Israel)
Yoram Karni, SCD Semiconductor Devices (Israel)

Published in SPIE Proceedings Vol. 8241:
High-Power Diode Laser Technology and Applications X
Mark S. Zediker, Editor(s)

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