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Proceedings Paper

Tunable narrow-band source using a VCSEL and an EDFA for interrogation of fiber Bragg grating sensors
Author(s): Toru Mizunami; Shuji Hirose; Takeshi Yoshinaga; Ken-ichi Yamamoto
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Paper Abstract

Wavelength tuning with a current of a long-wavelength vertical-cavity surface-emitting laser (VCSEL) with a spectral line width of 30 MHz was studied. To stabilize the power, saturated amplification of the VCSEL output by an erbiumdoped fiber amplifier (EDFA) was performed. For wavelength tuning by 2.5 nm, there was a 3-fold change in the VCSEL output power; however, the variation in the amplified output power was within ±13%. For wavelength tuning of 4 nm, the variation was ±20%. Application to fiber Bragg grating sensor interrogation was discussed.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84213Z (17 October 2012); doi: 10.1117/12.968565
Show Author Affiliations
Toru Mizunami, Kyushu Institute of Technology (Japan)
Shuji Hirose, Kyushu Institute of Technology (Japan)
Takeshi Yoshinaga, Kyushu Institute of Technology (Japan)
Ken-ichi Yamamoto, Kyushu Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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