Photonics Research, 2017, 5 (6): 06000583, Published Online: Dec. 7, 2017
Watt-level broadly wavelength tunable mode-locked solid-state laser in the 2 μm water absorption region Download: 544次
(140.4050) Mode-locked lasers (140.7090) Ultrafast lasers (140.3580) Lasers solid-state (140.3070) Infrared and far-infrared lasers.
Abstract
We report on broadly wavelength-tunable passive mode-locking with high power operating at the 2 μm water absorption band in a Tm:CYA crystal laser. With a simple quartz plate, stable mode-locking wavelengths can be tuned from 1874 to 1973 nm, with a tunable wavelength range up to ~100 nm and maximum output power up to 1.35 W. The bandwidth is narrow as ~6 GHz, corresponding to a high coherence. To our knowledge, this is the first demonstration of wavelength-tunable mode-locking with watt-level in the 2 μm water absorption band. The high temporal coherent laser can be further applied in spectroscopy, the efficient excitation of molecules, sensing, and quantum optics.
Wei Zhou, Xiaodong Xu, Rui Xu, Xuliang Fan, Yongguang Zhao, Lei Li, Dingyuan Tang, Deyuan Shen. Watt-level broadly wavelength tunable mode-locked solid-state laser in the 2 μm water absorption region[J]. Photonics Research, 2017, 5(6): 06000583.