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

S. Ohara; T. Hasegawa; Y. Kondo; N. Sugimoto

doi:10.1117/12.785822

16 May 2008 Bi₂O₃-based erbium doped fiber laser with over 110 nm tunable range for fiber sensor sources

S. Ohara, T. Hasegawa, Y. Kondo, N. Sugimoto

Proceedings Volume 7004, 19th International Conference on Optical Fibre Sensors; 70041Q (2008) https://doi.org/10.1117/12.785822
Event: 19th International Conference on Optical Fibre Sensors, 2008, Perth, WA, Australia

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.

Citation Download Citation

S. Ohara, T. Hasegawa, Y. Kondo, and N. Sugimoto "Bi₂O₃-based erbium doped fiber laser with over 110 nm tunable range for fiber sensor sources", Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70041Q (16 May 2008); https://doi.org/10.1117/12.785822

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