Experimental characterization of the spectra of etched long-period grating pairs

Jin Fei Ding; Aping Zhang; Hong Yan Fu

doi:10.1117/12.635985

Experimental characterization of the spectra of etched long-period grating pairs

Jin Fei Ding, Aping Zhang, Hong Yan Fu

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

Abstract

After an analysis of the spectral characteristics of the long-period grating (LPG) with decreasing the fiber cladding diameter, we experimentally investigated the spectra of etched LPG pairs (LPGPs) with ∼3 dB transmissivity (as infiber M-Z interferometers). The evolutions of the transmission spectra were characterized as the cladding diameters were decreased by HF etching process. A shift of the stop-band of LPG and interference pattern of LPGP to longer wavelength was observed with the reduction of cladding diameter, in which that of higher order cladding mode induced a larger shift. The responses of the LPGs and LPGPs with different etching degrees to the change of the surrounding refractive-index were measured, and an increased sensitivity is observed in the experiment.

Original language	English
Article number	60193H
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	6019 II
DOIs	https://doi.org/10.1117/12.635985
Publication status	Published - 1 Dec 2005
Externally published	Yes
Event	Passive Components and Fiber-based Devices II - Shanghai, China Duration: 7 Nov 2005 → 10 Nov 2005

Keywords

Etching process
Long-period grating
Mach-Zhender interferometer
Optical fiber sensor
Refractive-index measurement

ASJC Scopus subject areas

Electrical and Electronic Engineering
Condensed Matter Physics

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10.1117/12.635985

Cite this

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title = "Experimental characterization of the spectra of etched long-period grating pairs",

abstract = "After an analysis of the spectral characteristics of the long-period grating (LPG) with decreasing the fiber cladding diameter, we experimentally investigated the spectra of etched LPG pairs (LPGPs) with ∼3 dB transmissivity (as infiber M-Z interferometers). The evolutions of the transmission spectra were characterized as the cladding diameters were decreased by HF etching process. A shift of the stop-band of LPG and interference pattern of LPGP to longer wavelength was observed with the reduction of cladding diameter, in which that of higher order cladding mode induced a larger shift. The responses of the LPGs and LPGPs with different etching degrees to the change of the surrounding refractive-index were measured, and an increased sensitivity is observed in the experiment.",

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T1 - Experimental characterization of the spectra of etched long-period grating pairs

AU - Ding, Jin Fei

AU - Zhang, Aping

AU - Fu, Hong Yan

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N2 - After an analysis of the spectral characteristics of the long-period grating (LPG) with decreasing the fiber cladding diameter, we experimentally investigated the spectra of etched LPG pairs (LPGPs) with ∼3 dB transmissivity (as infiber M-Z interferometers). The evolutions of the transmission spectra were characterized as the cladding diameters were decreased by HF etching process. A shift of the stop-band of LPG and interference pattern of LPGP to longer wavelength was observed with the reduction of cladding diameter, in which that of higher order cladding mode induced a larger shift. The responses of the LPGs and LPGPs with different etching degrees to the change of the surrounding refractive-index were measured, and an increased sensitivity is observed in the experiment.

AB - After an analysis of the spectral characteristics of the long-period grating (LPG) with decreasing the fiber cladding diameter, we experimentally investigated the spectra of etched LPG pairs (LPGPs) with ∼3 dB transmissivity (as infiber M-Z interferometers). The evolutions of the transmission spectra were characterized as the cladding diameters were decreased by HF etching process. A shift of the stop-band of LPG and interference pattern of LPGP to longer wavelength was observed with the reduction of cladding diameter, in which that of higher order cladding mode induced a larger shift. The responses of the LPGs and LPGPs with different etching degrees to the change of the surrounding refractive-index were measured, and an increased sensitivity is observed in the experiment.

KW - Etching process

KW - Long-period grating

KW - Mach-Zhender interferometer

KW - Optical fiber sensor

KW - Refractive-index measurement

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DO - 10.1117/12.635985

M3 - Conference article

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VL - 6019 II

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

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

M1 - 60193H

T2 - Passive Components and Fiber-based Devices II

Y2 - 7 November 2005 through 10 November 2005

ER -

Experimental characterization of the spectra of etched long-period grating pairs

Abstract

Keywords

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