Gap FBG and its application in tunable narrow linewidth fiber laser

Yuanhong Yang; Xiaozhe Zhang; Jin Jin Guo; Wei Jin; Mingwei Yang

doi:10.1117/12.974813

Gap FBG and its application in tunable narrow linewidth fiber laser

Yuanhong Yang
, Xiaozhe Zhang
, Jin Jin Guo
, Wei Jin
, Mingwei Yang

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

1 Citation (Scopus)

Abstract

A gap fiber Bragg grating (g-FBG) is fabricated by cutting a uniform FBG in the middle to introduce a small air gap between the two sections. Numerical and experimental investigations show that the g-FBG has the characteristics of both a phase shifted FBG and a Fizeau interferometer. The peak transmission wavelength of the g-FBG can be tuned by adjusting the air-gap longitudinally or transversely with respect to the fiber center-axis. With a g-FBG as tunable intra-cavity filter, a tunable fiber ring laser with a narrow line-width is demonstrated. The wavelength tuning range of the laser is 0.12 nm with a output power flatness better than 0.9 dB. The 3 dB spectral line-width is less than 12 pm and output power is 3.68 dBm.

Original language	English
Title of host publication	22nd International Conference on Optical Fiber Sensors
Volume	8421
DOIs	https://doi.org/10.1117/12.974813
Publication status	Published - 1 Dec 2012
Event	22nd International Conference on Optical Fiber Sensors - Beijing, China Duration: 15 Oct 2012 → 19 Oct 2012

Conference

Conference	22nd International Conference on Optical Fiber Sensors
Country/Territory	China
City	Beijing
Period	15/10/12 → 19/10/12

Keywords

Fiber ring laser
Gap fiber Bragg grating
Tunable filter

ASJC Scopus subject areas

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

More information

10.1117/12.974813

Cite this

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title = "Gap FBG and its application in tunable narrow linewidth fiber laser",

abstract = "A gap fiber Bragg grating (g-FBG) is fabricated by cutting a uniform FBG in the middle to introduce a small air gap between the two sections. Numerical and experimental investigations show that the g-FBG has the characteristics of both a phase shifted FBG and a Fizeau interferometer. The peak transmission wavelength of the g-FBG can be tuned by adjusting the air-gap longitudinally or transversely with respect to the fiber center-axis. With a g-FBG as tunable intra-cavity filter, a tunable fiber ring laser with a narrow line-width is demonstrated. The wavelength tuning range of the laser is 0.12 nm with a output power flatness better than 0.9 dB. The 3 dB spectral line-width is less than 12 pm and output power is 3.68 dBm.",

keywords = "Fiber ring laser, Gap fiber Bragg grating, Tunable filter",

author = "Yuanhong Yang and Xiaozhe Zhang and Guo, \{Jin Jin\} and Wei Jin and Mingwei Yang",

year = "2012",

month = dec,

day = "1",

doi = "10.1117/12.974813",

language = "English",

isbn = "9780819491039",

volume = "8421",

booktitle = "22nd International Conference on Optical Fiber Sensors",

note = "22nd International Conference on Optical Fiber Sensors ; Conference date: 15-10-2012 Through 19-10-2012",

}

TY - GEN

T1 - Gap FBG and its application in tunable narrow linewidth fiber laser

AU - Yang, Yuanhong

AU - Zhang, Xiaozhe

AU - Guo, Jin Jin

AU - Jin, Wei

AU - Yang, Mingwei

PY - 2012/12/1

Y1 - 2012/12/1

N2 - A gap fiber Bragg grating (g-FBG) is fabricated by cutting a uniform FBG in the middle to introduce a small air gap between the two sections. Numerical and experimental investigations show that the g-FBG has the characteristics of both a phase shifted FBG and a Fizeau interferometer. The peak transmission wavelength of the g-FBG can be tuned by adjusting the air-gap longitudinally or transversely with respect to the fiber center-axis. With a g-FBG as tunable intra-cavity filter, a tunable fiber ring laser with a narrow line-width is demonstrated. The wavelength tuning range of the laser is 0.12 nm with a output power flatness better than 0.9 dB. The 3 dB spectral line-width is less than 12 pm and output power is 3.68 dBm.

AB - A gap fiber Bragg grating (g-FBG) is fabricated by cutting a uniform FBG in the middle to introduce a small air gap between the two sections. Numerical and experimental investigations show that the g-FBG has the characteristics of both a phase shifted FBG and a Fizeau interferometer. The peak transmission wavelength of the g-FBG can be tuned by adjusting the air-gap longitudinally or transversely with respect to the fiber center-axis. With a g-FBG as tunable intra-cavity filter, a tunable fiber ring laser with a narrow line-width is demonstrated. The wavelength tuning range of the laser is 0.12 nm with a output power flatness better than 0.9 dB. The 3 dB spectral line-width is less than 12 pm and output power is 3.68 dBm.

KW - Fiber ring laser

KW - Gap fiber Bragg grating

KW - Tunable filter

UR - https://www.scopus.com/pages/publications/84875604728

U2 - 10.1117/12.974813

DO - 10.1117/12.974813

M3 - Conference article published in proceeding or book

SN - 9780819491039

VL - 8421

BT - 22nd International Conference on Optical Fiber Sensors

T2 - 22nd International Conference on Optical Fiber Sensors

Y2 - 15 October 2012 through 19 October 2012

ER -

Gap FBG and its application in tunable narrow linewidth fiber laser

Abstract

Conference

Keywords

ASJC Scopus subject areas

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