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Proceedings Paper

High-power 14xx-nm pump lasers for next generation
Author(s): Toru Fukushima; Naoki Tsukiji; Junji Yoshida; Toshio Kimura; Naoki Hayamizu
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Paper Abstract

This paper reviews the recent progress in 14XXnm-band pump lasers of new design concepts. One is the new packaging scheme with integrating multiple laser stripes and a polarization beam combiner, which brings various benefits in cost-performances of the optical amplifier both in EDF (Erbium doped fiber) and Raman configuration. This "hybrid" designed pump lasers offer stable low-DOP (degree of polarization) of 5% with the standing-alone laser package, and demonstrated the potential optical output beyond one watt with the significant saving factor in board-spaces and electrical power consumption. The other is the inner-grating multi-mode (iGM) chip design, which integrates the wavelength stabilizer into the laser stripe and maintains stable multi longitudinal-mode oscillation. The "iGM" laser shows very low RIN (relative intensity noise) less than -150dB/Hz together with suppression of SBS (stimulated Brillouin scattering) in the transmission fiber. We conclude that these new pump lasers, hybrid and iGM lasers, are promising candidates to the 14XXnm-band pump sources for co-propagating Raman-amplifier as well as EDF-amplifiers of next generation.

Paper Details

Date Published: 29 August 2002
PDF: 15 pages
Proc. SPIE 4905, Materials and Devices for Optical and Wireless Communications, (29 August 2002); doi: 10.1117/12.480985
Show Author Affiliations
Toru Fukushima, Furukawa Electric Co., Ltd. (Japan)
Naoki Tsukiji, Furukawa Electric Co., Ltd. (Japan)
Junji Yoshida, Furukawa Electric Co., Ltd. (Japan)
Toshio Kimura, Furukawa Electric Co., Ltd. (Japan)
Naoki Hayamizu, Furukawa Electric Co., Ltd. (Japan)

Published in SPIE Proceedings Vol. 4905:
Materials and Devices for Optical and Wireless Communications
Constance J. Chang-Hasnain; YuXing Xia; Kenichi Iga, Editor(s)

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