Raman-Assisted Passively Mode-Locked Fiber Laser
Lei Zhao, Pei-Jun Yao, Chun Gu** , Li-Xin Xu
Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei 230026
Abstract ：We propose and demonstrate a Raman-assisted passively mode-locked Yb-doped fiber laser in a normal dispersion regime. A section of highly nonlinear fiber is adopted to enhance the nonlinearity to extend the bandwidth of the gain spectrum by the stimulated Raman effect. The mode-locked fiber laser emits a broad spectral bandwidth of 64 nm at the $-$20 dB level and a highly stable pulse operation with a signal-to-noise ratio of 77 dB.
收稿日期: 2017-12-05
出版日期: 2018-03-13
[1] Li X, Zou W W and Chen J P 2015 Opt. Express 23 21424 [2] Zhao L M and Tang D Y 2006 Appl. Phys. B 83 553 [3] Suzuki M, Ganeev R A, Yoneya S and Kuroda H 2015 Opt. Lett. 40 804 [4] Horowitz M and Silberberg Y 1998 IEEE Photon. Technol. Lett. 10 1389 [5] Kadir N A A, Ismail E I, Latiff A A, Ahmad H, Arof H and Harun S W 2017 Chin. Phys. Lett. 34 014202 [6] Wang Z K, Zou F, Wang Z W, Du S T and Zhou J 2016 Chin. Phys. Lett. 33 094206 [7] Chong A, Renninger W H and Wise F W 2007 Opt. Lett. 32 2408 [8] Kieu K, Renninger W H, Chong A and Wise F W 2009 Opt. Lett. 34 593 [9] Kharenko D S, Shtyrina O V, Yarutkina I A, Podivilov E V, Fedoruk M P and Babin S A 2012 Laser Phys. Lett. 9 662 [10] Hofer M, Fermann M E, Haberl F, Ober M H and Schmidt A J 1991 Opt. Lett. 16 502 [11] Runge A F, Aguergaray C, Broderick N G and Erkintalo M 2014 Opt. Lett. 39 319 [12] Aguergaray C, Runge A, Erkintalo M and Broderick N G R 2013 Opt. Lett. 38 2644 [13] North T and Rochette M 2013 Opt. Lett. 38 890 [14] Cundiff S T, Soto-Crespo J M and Akhmediev N 2002 Phys. Rev. Lett. 88 073903 [15] Runge A F J, Broderick N G R and Erkintalo M 2015 Optica 2 36 [16] Kharenko D S, Podivilov E V, Apolonski A A and Babin S A 2012 Opt. Lett. 37 4104 [17] Bednyakova A E, Babin S A, Kharenko D S, Podivilov E V, Fedoruk M P, Kalashnikov V L and Apolonski A 2013 Opt. Express 21 20556
[1]
.
[2]
.
[3]
.
[4]
.
[5]
.
[6]
.
[7]
.
[8]
.
[9]
.
[10]
.
[11]
.
[12]
.
[13]
.
[14]
.
[15]
.
2018, Vol. 35 
