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Proceedings Paper

Bi2O3-based erbium doped fiber laser with over 110 nm tunable range for fiber sensor sources
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Paper Abstract

The advantage of optical fiber grating sensors are easily implemented multiplexing by using broadband light source. Erbium doped fiber (EDF) are important as a gain media, because it affects the performance of light sources. We demonstrated tunable fiber ring laser using Bi2O3-based Erbium doped fiber (BIEDF) and a tunable filter with bandwidth of 1 nm. We show the BIEDF fiber length dependence, pump power dependence and also show the its spectra. By increasing fiber lengths of BIEDF, the tunable range changes toward longer wavelengths with varying tunable range. By using 0.7 m of BIEDF as a gain media, the tunable range reached over 110 nm with just pump power of 100 mW at 1480 nm. Tunable range was insensitive to pump power in this experiment. Also we show the laser spectra. BIEDF laser shows high optical signal-to-noise ratio (OSNR) higher than 55 dB at over 110 nm tunable range, and 70 dB for 99 nm (1530 - 1629 nm) tunable range. This means that BIEDF has potential for broad band fiber sensor sources, especially for fiber grating sensors.

Paper Details

Date Published: 16 May 2008
PDF: 4 pages
Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70041Q (16 May 2008); doi: 10.1117/12.785822
Show Author Affiliations
S. Ohara, Asahi Glass Co., Ltd. (Japan)
T. Hasegawa, Asahi Glass Co., Ltd. (Japan)
Y. Kondo, Asahi Glass Co., Ltd. (Japan)
N. Sugimoto, Asahi Glass Co., Ltd. (Japan)

Published in SPIE Proceedings Vol. 7004:
19th International Conference on Optical Fibre Sensors

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