[1] [1] DING Ya-qian,QI Yun-feng,LIU Yuan,et al.Study on polarization maintaining fiber power amplification characteristics of dual-wavelength fiber lasers[J].Chinese Journal of Lasers,2014,41(3):12-17.

[2] [2] SAIDIN N,ZEN D I M,DAMANHURI S S A,et al.All-fiber dual-wavelength thulium-bismuth codoped fiber laser[J].Microwave and Optical Technology Letters,2013,55(10):2324-2326.

[3] [3] HAO Yan-ping,ZHANG Shu-min,WANG Xin-zhan,et al.Tunable erbium-doped fiber laser based on multi-mode fiber filter[J].Acta Optica Sinica,2011,31(8):213-218.

[4] [4] TANG J G,SUN J Q.Stable and widely tunable wavelength-spacing single longitudinal mode dual-wavelength erbium-doped fiber laser[J].Optical Fiber Technology,2010,16(5):299-303.

[5] [5] ZHOU Ying-wu,LUO Zhi-zao.Thermally expanded core fiber based M-Z filter and its application in widely tunable erbium-doped fiber laser[J].Acta Photonica Sinica,2013,42(12):1482-1485.

[6] [6] YIN B,FENG S C,BAI Y L,et al.Switchable single-polarization dual-wavelength ring laser based on structured PM-CFBG[J].IEEE Photonics Technology Letters,2014,26(12):1227-1230.

[7] [7] CHEN Guo-jie,HUANG De-xiu,ZHANG Xin-liang,et al.Single-longitudinal-mode dual-wavelength fiber ring laser by cascading two filters and using a saturable absorber[J].Acta Photonica Sinica,2009,38(3):499-502.

[8] [8] TSENG C L,JOU J J,LIU C K,et al.A multiwavelength erbium-doped fiber MOPA laser with partical overlapping linear cavities[J].Optica Applicata,2009,39(3):579-585.

[9] [9] HAN J H,Switchable dual-wavelength erbium-doped fiber ring laser with cascaded fiber Bragg gratings[J].Optik,2010,121(24):2266-2268.

[10] [10] WANG F,XU E M,DONG J J,et al.A tunable and switchable single-longitudinal-mode dual-wavelength fiber laser incorporating a reconfigurable dual-pass Mach-Zehnder interferometer and its application in microwave generation[J].Optics Communications,2011,284(9):2337-2340.

[11] [11] SUN G Y,ZHOU Y W,HU Y H,et al.Switchable erbium-doped fiber ring laser based on Sagnac loop mirror incorporating few-mode high birefringence fiber[J].Optics Communications,2011,284(6):1608-1611.

[12] [12] KUANG Fen,YE Zhi-qing.Self-seeded multi-wavelength switchable erbium-doped fiber laser[J].Acta Photonica Sinica,2012,41(12):1460-1463.

[13] [13] FANG Xiu-li,TONG Zheng-rong,CAO Ye,et al.Narrow linewidth ring cavity fiber laser using F-P fiber ring filter[J].Infrared and Laser Engineering,2013,42(2):329-333.

[14] [14] SIERRA-HERNANDEZ J M,ROJIAS-LAGUNA R,VARGAS-RODRIGUEZ E,et al.A tunable multi-wavelength laser based on a Mach-Zehnder interferometer with photonic crystal fiber[J].Laser Physics,2013,23(5):055105(5pp).

[15] [15] CHENG J Q,ZHANG L L,SHARAFUDEEN K,et al.Room-temperature switchable triple-wavelength operation of an erbium-doped fiber laser[J].Laser Physics,2014,24(1):015102(4pp).

[16] [16] ZHANG Xin,CHEN Wei,LIU Yu,et al.Single longitudinal mode fiber laser with multiple ring cavities and its frequency stabilization[J].Chinese Journal of Lasers,2007,34(1):48-52.

[17] [17] YANG Xiu-feng,WEI Fang-fang,TONG Zheng-rong,et al.Dual wavelength fiber laser based on a high finesse fiber ring filter[J].Chinese Journal of Lasers,2011,38(4):56-60.