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Proceedings Paper

Improved tuning accuracy of fiber grating lasers using LVDT
Author(s): Wenghong Chung; Hwa-Yaw Tam; M. Suleyman Demokan; Ping-Kong A. Wai
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Paper Abstract

A microprocessor controlled feedback system using a linear variable differential transformer to measure the compression of a fiber Bragg grating with a view to improve the tuning accuracy of a fiber grating laser is reported. This technique overcomes the large hysteresis of the PZT actuator normally used to compress the grating. A tuning range of about 20 nm with a readout wavelength accuracy of better than +/- 0.05 nm was achieved.

Paper Details

Date Published: 29 October 2001
PDF: 5 pages
Proc. SPIE 4595, Photonic Systems and Applications, (29 October 2001); doi: 10.1117/12.446625
Show Author Affiliations
Wenghong Chung, Hong Kong Polytechnic Univ. (Hong Kong)
Hwa-Yaw Tam, Hong Kong Polytechnic Univ. (China)
M. Suleyman Demokan, Hong Kong Polytechnic Univ. (Hong Kong)
Ping-Kong A. Wai, Hong Kong Polytechnic Univ. (Hong Kong)


Published in SPIE Proceedings Vol. 4595:
Photonic Systems and Applications

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