Apodized long-period grating with low insertion loss

Xiufeng Yang; Xin Guo; Chao Lu; Cheng Tee Hiang

doi:10.1002/mop.10583

Apodized long-period grating with low insertion loss

Xiufeng Yang, Xin Guo, Chao Lu, Cheng Tee Hiang

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

9 Citations (Scopus)

Abstract

The characteristics of an apodized long-period grating are studied experimentally and theoretically. It has no side-lobes and almost zero insertion loss in the pass band. Changing the dc and maximum ac index along the z direction of LPG can conveniently control wavelength and the value of peak loss. Suitable spectral profile of gain-flattening filter with low insertion loss is obtained by writing two or three consecutive apodized sub-gratings in one fiber with the different UV power level in the second exposure. The experiment results are in good agreement with the simulation results.

Original language	English
Pages (from-to)	283-286
Number of pages	4
Journal	Microwave and Optical Technology Letters
Volume	35
Issue number	4
DOIs	https://doi.org/10.1002/mop.10583
Publication status	Published - 20 Nov 2002
Externally published	Yes

Keywords

Apodization
Gain-flattening filter
Long-period grating

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.10583

Cite this

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AU - Guo, Xin

AU - Lu, Chao

AU - Hiang, Cheng Tee

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AB - The characteristics of an apodized long-period grating are studied experimentally and theoretically. It has no side-lobes and almost zero insertion loss in the pass band. Changing the dc and maximum ac index along the z direction of LPG can conveniently control wavelength and the value of peak loss. Suitable spectral profile of gain-flattening filter with low insertion loss is obtained by writing two or three consecutive apodized sub-gratings in one fiber with the different UV power level in the second exposure. The experiment results are in good agreement with the simulation results.

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KW - Gain-flattening filter

KW - Long-period grating

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JF - Microwave and Optical Technology Letters

IS - 4

ER -

Apodized long-period grating with low insertion loss

Abstract

Keywords

ASJC Scopus subject areas

More information

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