FBG sensor system based on wavelength-swept active mode-locking laser with RSOA gain medium

Hyo Jin Kim, Hwi Don Lee, Myong Yung Jeong, Chang Seok Kim, Ju Han Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We performed an experiment of wavelength-swept laser based on active mode-locking on reflective semiconductor optical amplifier (RSOA). Since this laser does not have a wavelength-selecting filter, it can achieve a high sweeping speed and reduce the component cost and size. Compared to the conventional SOA gain medium, RSOA shows a merit of higher efficiency of cross gain modulation due to the twice propagation of active gain region. We applied this laser to Fiber Bragg grating (FBG) strain sensor system which can have faster data acquisition speed than conventional wavelength-swept laser method. The linear response of FBG peak for the applied strain is monitored using the proposed laser source.

Original languageEnglish
Title of host publication21st International Conference on Optical Fiber Sensors
DOIs
StatePublished - 2011
Event21st International Conference on Optical Fiber Sensors - Ottawa, ON, Canada
Duration: 15 May 201119 May 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7753
ISSN (Print)0277-786X

Conference

Conference21st International Conference on Optical Fiber Sensors
Country/TerritoryCanada
CityOttawa, ON
Period15/05/1119/05/11

Keywords

  • Fiber Bragg grating
  • Fiber-optic sensor
  • Wavelength swept laser

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