Improved tuning accuracy of fiber grating lasers using a linear variable differential transformer

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

doi:10.1002/mop.10085

Improved tuning accuracy of fiber grating lasers using a linear variable differential transformer

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

The Hong Kong Polytechnic University

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

1 Citation (Scopus)

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)	37-40
Number of pages	4
Journal	Microwave and Optical Technology Letters
Volume	32
Issue number	1
DOIs	https://doi.org/10.1002/mop.10085
Publication status	Published - 5 Jan 2002

Keywords

Fiber Bragg gratings
Fiber lasers
Wavelength tuning
WDM applications

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

More information

10.1002/mop.10085

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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Improved tuning accuracy of fiber grating lasers using a linear variable differential transformer

Abstract

Keywords

ASJC Scopus subject areas

More information

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