Title :
Multiwavelength Dissipative-Soliton Generation in Yb-Fiber Laser Using Graphene-Deposited Fiber-Taper
Author :
Luo, Zhengqian ; Huang, Yizhong ; Wang, Jinzhang ; Cheng, Huihui ; Cai, Zhiping ; Ye, Chenchun
Author_Institution :
Dept. of Electron. Eng., Xiamen Univ., Xiamen, China
Abstract :
We propose and demonstrate multiwavelength dissipative soliton (DS) generation in an all-normal-dispersion ytterbium-doped fiber laser based on a graphene-deposited tapered fiber (GDTF) device. Due to the interaction of the graphene with the evanescent field on the taper, the GDTF device possesses the characteristics of both saturable absorption and polarizing effect. Therefore, this device not only initiates the mode-locking operation based on the saturable absorption, but also induces both the special spectral filtering and nonlinear polarization evolution for shaping pulses into DSs. Simultaneous triple-wavelength DS operation around 1035 nm is thus achieved with a pulse energy of 6.4 nJ and pulse duration of 74.6 ps. Moreover, the DS operation is very stable with an RF signal-to-noise ratio of 62.5 dB.
Keywords :
fibre lasers; graphene; optical fibre dispersion; optical fibre filters; optical pulse generation; optical pulse shaping; optical saturable absorption; optical solitons; ytterbium; C; all-normal-dispersion; energy 6.4 nJ; evanescent field; graphene-deposited tapered fiber device; multiwavelength dissipative-soliton generation; nonlinear polarization; polarizing effect; saturable absorption; shaping pulses; spectral filtering; time 74.6 ps; triple-wavelength DS operation; ytterbium-doped fiber laser; Cavity resonators; Decision support systems; Laser mode locking; Optical polarization; Optimized production technology; Solitons; Dissipative soliton (DS); fiber laser; graphene; multiwavelength; tapered fiber;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2208100
