LI Qi,HUANG Kai-qiang,CHEN Hai-yan.A temperature sensor based on switchable dual- wavelength fiber Bragg grating laser with a semiconductor saturable absorber mirror[J].Optoelectronics Letters,2015,11(6):466-468 A temperature sensor based on switchable dual- wavelength fiber Bragg grating laser with a semiconductor saturable absorber mirror Author Name Affiliation LI Qi  School of Physics and Optoelectronic Engineering, Yangtze University, Jingzhou 434023, China  HUANG Kai-qiang  School of Electronics & Information, Yangtze University, Jingzhou 434023, China  CHEN Hai-yan  School of Physics and Optoelectronic Engineering, Yangtze University, Jingzhou 434023, China  Abstract:       A temperature sensor based on a switchable dual-wavelength fiber Bragg grating (FBG) laser with a semiconductor saturable absorber mirror (SESAM) is presented and demonstrated experimentally. The repetition rate of Q-switched pulses is ~17 kHz. The results demonstrate that the measured temperature has good linearity to the wavelength spacing of the two lasing wavelengths and has a temperature sensitivity of 21 pm/?C covering a range of -10—22 °C. The experimental results prove the feasibility of the proposed temperature sensor. Hits: 3676 Download times: 0 This work has been supported by the Foundation of Hubei Provincial Department of Education of China (No.2012258). View Full Text    Download reader