Influence of air gap on the lasing wavelength of the fiber grating external cavity semiconductor laser

HU Chun-xia; WU Zheng-mao; DENG Tao; XIA Guang-qiong

In order to control accurately the lasing wavelength of the fiber grating external cavity semiconductor laser(FGECSL),after determining the mode distribution based on the phase condition,the influence of the air gap between the head of fiber and the front face of F-P LD on the lasing wavelength of FGECSL was through numerical simulation.The results show that the variation of the air gap will result in the lasing wavelength rippling around the Bragg wavelength of fiber grating(FG),and the amplitude of fluctuation becomes smaller with the increase of the external cavity length.For a fixed length of external cavity,the lasing wavelength can be accurately located in the Bragg wavelength of FG through adjusting the air gap carefully.

Corresponding author: XIA Guang-qiong, gqxia@swu.edu.cn

1. School of Physics, Southwest University, Chongqing 400715, China

Received Date: 2006-12-28

Accepted Date: 2007-03-27

Available Online: 2008-04-25

Abstract: In order to control accurately the lasing wavelength of the fiber grating external cavity semiconductor laser(FGECSL),after determining the mode distribution based on the phase condition,the influence of the air gap between the head of fiber and the front face of F-P LD on the lasing wavelength of FGECSL was through numerical simulation.The results show that the variation of the air gap will result in the lasing wavelength rippling around the Bragg wavelength of fiber grating(FG),and the amplitude of fluctuation becomes smaller with the increase of the external cavity length.For a fixed length of external cavity,the lasing wavelength can be accurately located in the Bragg wavelength of FG through adjusting the air gap carefully.

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Reference (12)

[1]	TIMOFEEV F N,BAYVEL P,MIKHAILOV V,et al.2.5 Gbit/s directly-modulated fibre grating laser for WDM networks[J].Electron Lett,1997,33(16):1406-1407.
[2]	DOGRU N,OZYAZICI M S,SAYIN M.Small signal intensity modulation of external cavity lasers with fiber Bragg gratings[J].Opt & Quant Electron,2005,37:391-405.
[3]	SATO T,YAMAMOTO F,TSUJI K,et al.An uncooled external cavity diode laser for coarse-WDM access network systems[J].IEEE Photonics Technology Letters,2002,14(7):1001-1003.
[4]	LAY T S,YANG H M,LEE C W,et al.Fiber grating laser:a performance study on coupling efficiency of fiber microlens and the Bragg reflectivity[J].Opt Commun,2004,233:89-96.
[5]	LAY T S,CHEN M H,YANG H M,et al.1.55μm non-anti-reflection-coated fiber grating laser for single-longitudinal mode operation[J].Opt & Quant Electron,2002,34:687-696.
[6]	XIA G Q,WU Zh M,ZHOU H Q.Influence of external cavity length on lasing wavelength variation of fiber grating semiconductor laser with ambient temperature[J].Optik,2003,114(6):247-250.
[7]	WU Zh M,XIA G Q.Oscillation wavelength of fiber Bragg gratingsemiconductor lasers[J].Optik,2002,113(8):348-350.
[8]	KANJAMALA A P,LEVI A F J.A multistate external cavity laser diode[J].A P L,1998,72(18):2214-2216.
[9]	ZHOU H Q,XIA G Q,FAN Y X,et al.Output characteristics of weak-coupling fiber grating external cavity semiconductor laser[J].Opto-Electronics Review,2005,13(1):27-30.
[10]	WANG L L,REN J H,ZHAO T G,et al.Theoretical and experimental study on a fiber grating external-cavity semiconductor laser[J].Laser Technology,2005,29(4):361-363(in Chinese).
[11]	DENG T,XIA G Q,WU Zh M.Influence of the optical feedback on the large signal modulation characteristics of the external cavity semiconductor laser[J].Journal of Materials Science:Materials in Electron,2006,17(4):301-305.
[12]	XU Q Y,CHEN Sh W.Improved model analysis of fiber bragg grating external cavity semiconductor lasers[J].Chinese Journal of Lasers,2005,32(2):156-160(in Chinese).

Influence of air gap on the lasing wavelength of the fiber grating external cavity semiconductor laser

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