Title :
Passively Mode-Locked Tm:YAG Ceramic Laser Based on Graphene
Author :
Jie Ma ; Guoqiang Xie ; Jian Zhang ; Peng Yuan ; Dingyuan Tang ; Liejia Qian
Author_Institution :
Dept. of Phys. & Astron., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
There is a growing interest in developing ultrafast laser sources around 2-μm wavelength range. Here, we experimentally demonstrate a diode-pumped passively mode-locked Tm:YAG ceramic laser using graphene as a mode locker. By transferring graphene synthesized by chemical vapor deposition onto Au-coated mirror as saturable absorber, continuous wave mode locking is successfully obtained in the Tm:YAG ceramic laser. The generated mode-locked pulses in 2-μm spectral region have a pulse width as short as 2.8 ps, with a maximum average output power of 158 mW and repetition rate of 98.7 MHz. The mode-locked mid-infrared pulses are very stable having a multitude of potential applications such as ultrafast molecule spectroscopy, mid-IR nonlinear frequency conversion, etc.
Keywords :
ceramics; chemical vapour deposition; graphene; laser mirrors; laser mode locking; laser stability; optical pulse generation; optical pumping; optical saturable absorption; solid lasers; thulium; Au; Au-coated mirror; C; YAG:Tm; chemical vapor deposition; continuous wave mode locking; diode-pumped passively mode-locked Tm:YAG ceramic laser; frequency 98.7 MHz; mode-locked mid-infrared pulse; mode-locked pulse generation; output power; power 158 mW; pulse width; repetition rate; saturable absorber; spectral region; time 2.8 ps; ultrafast laser sources; wavelength 2 mum; Ceramics; Graphene; Laser excitation; Laser mode locking; Optimized production technology; Pump lasers; Semiconductor lasers; Ceramic laser; graphene; mid-infrared (mid-IR); mode locking;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2014.2361785
