Title :
A DFB-FL Wavelength Shift Interrogating Scheme Based on C2H2 Absorption Spectrum
Author :
Song, Fujun ; Chang, Jun ; Wei, Yubin ; Wang, Qingpu ; Huang, Qingjie ; Kong, Delong ; Wang, Zongliang
Author_Institution :
Sch. of Inf. Sci. & Eng., Shandong Univ., Jinan, China
Abstract :
A Distributed feedback fiber laser (DFB-FL) wavelength shift interrogation scheme based on C2H2 absorption spectrum is demonstrated in this paper, the interrogation scheme takes advantage of the transformation the wavelength shift to intensity change of the light by gas absorption spectrum. Interrogation the wavelength shifting of the DFB-FL by C2H2 absorption line around 1535nm is taken as example. The theory, structure of the systems, resolution analysis is presented in detail. Because gas absorption spectrum is stable, the system based on this interrogation scheme has high precision and stability; it has good prospects in DFB-FL sensor wavelength interrogation system.
Keywords :
distributed feedback lasers; fibre lasers; organic compounds; spectral line shift; spectrochemical analysis; spectroscopic light sources; C2H2 absorption line; DFB-FL; absorption spectrum; distributed feedback fiber laser; gas absorption spectrum; resolution analysis; wavelength shift interrogating scheme; Absorption; Distributed feedback devices; Fiber lasers; Laser feedback; Optical fiber communication; Optical fiber polarization; Optical fiber sensors;
Conference_Titel :
Photonics and Optoelectronics (SOPO), 2011 Symposium on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6555-2
DOI :
10.1109/SOPO.2011.5780619
