Tunable external cavity laser with a liquid-crystal subwavelength resonant grating filter as wavelength-selective mirror

Allan S.P. Chang; Hua Tan; Shufeng Bai; Wei Wu; Zhaoning Yu; Stephen Y. Chou

doi:10.1109/LPT.2007.899437

Tunable external cavity laser with a liquid-crystal subwavelength resonant grating filter as wavelength-selective mirror

Allan S.P. Chang, Hua Tan, Shufeng Bai, Wei Wu, Zhaoning Yu, Stephen Y. Chou

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

We demonstrate a tunable external cavity laser consisting of a voltage-tuned liquid-crystal cladded subwavelength resonant grating filter placed directly in front of a semiconductor laser gain chip. The filter acts as a tunable wavelength-selective mirror. As the applied voltage to the filter changes from 0 to 22 V, the laser wavelength demonstrates a tuning range of 7 nm, which may be further increased. As the laser has simple cavity design and no moving parts, it can be low cost and easy to fabricate and assemble.

Original language	English (US)
Pages (from-to)	1099-1101
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	19
Issue number	14
DOIs	https://doi.org/10.1109/LPT.2007.899437
State	Published - Jul 15 2007

All Science Journal Classification (ASJC) codes

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

Keywords

Gratings
Resonant waveguide grating filter
Semiconductor lasers
Tunable lasers

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10.1109/LPT.2007.899437

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title = "Tunable external cavity laser with a liquid-crystal subwavelength resonant grating filter as wavelength-selective mirror",

abstract = "We demonstrate a tunable external cavity laser consisting of a voltage-tuned liquid-crystal cladded subwavelength resonant grating filter placed directly in front of a semiconductor laser gain chip. The filter acts as a tunable wavelength-selective mirror. As the applied voltage to the filter changes from 0 to 22 V, the laser wavelength demonstrates a tuning range of 7 nm, which may be further increased. As the laser has simple cavity design and no moving parts, it can be low cost and easy to fabricate and assemble.",

keywords = "Gratings, Resonant waveguide grating filter, Semiconductor lasers, Tunable lasers",

author = "Chang, {Allan S.P.} and Hua Tan and Shufeng Bai and Wei Wu and Zhaoning Yu and Chou, {Stephen Y.}",

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T1 - Tunable external cavity laser with a liquid-crystal subwavelength resonant grating filter as wavelength-selective mirror

AU - Chang, Allan S.P.

AU - Tan, Hua

AU - Bai, Shufeng

AU - Wu, Wei

AU - Yu, Zhaoning

AU - Chou, Stephen Y.

PY - 2007/7/15

Y1 - 2007/7/15

N2 - We demonstrate a tunable external cavity laser consisting of a voltage-tuned liquid-crystal cladded subwavelength resonant grating filter placed directly in front of a semiconductor laser gain chip. The filter acts as a tunable wavelength-selective mirror. As the applied voltage to the filter changes from 0 to 22 V, the laser wavelength demonstrates a tuning range of 7 nm, which may be further increased. As the laser has simple cavity design and no moving parts, it can be low cost and easy to fabricate and assemble.

AB - We demonstrate a tunable external cavity laser consisting of a voltage-tuned liquid-crystal cladded subwavelength resonant grating filter placed directly in front of a semiconductor laser gain chip. The filter acts as a tunable wavelength-selective mirror. As the applied voltage to the filter changes from 0 to 22 V, the laser wavelength demonstrates a tuning range of 7 nm, which may be further increased. As the laser has simple cavity design and no moving parts, it can be low cost and easy to fabricate and assemble.

KW - Gratings

KW - Resonant waveguide grating filter

KW - Semiconductor lasers

KW - Tunable lasers

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Tunable external cavity laser with a liquid-crystal subwavelength resonant grating filter as wavelength-selective mirror

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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