Improved tuning accuracy of fiber grating lasers using LVDT

W. H. Chung; Hwa Yaw Tam; M. S. Demokan; Ping Kong Alexander Wai

doi:10.1117/12.446625

Improved tuning accuracy of fiber grating lasers using LVDT

W. H. Chung, Hwa Yaw Tam, M. S. Demokan, Ping Kong Alexander Wai

The Hong Kong Polytechnic University

Research output: Journal article publication › Conference article › Academic research › peer-review

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.

Original language	English
Pages (from-to)	272-276
Number of pages	5
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4595
DOIs	https://doi.org/10.1117/12.446625
Publication status	Published - 1 Dec 2001
Event	Photonic Systems and Applications - Singapore, Singapore Duration: 27 Nov 2001 → 30 Nov 2001

Keywords

Fiber Bragg gratings
Fiber lasers
Wavelength tuning
WDM applications

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

More information

10.1117/12.446625

Cite this

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AB - 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.

KW - Fiber Bragg gratings

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KW - Wavelength tuning

KW - WDM applications

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JF - Proceedings of SPIE - The International Society for Optical Engineering

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Improved tuning accuracy of fiber grating lasers using LVDT

Abstract

Keywords

ASJC Scopus subject areas

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