Laser & Optoelectronics Progress, Volume. 56, Issue 1, 011404(2019)
Amplification Properties of 1319 nm Nd∶YAG Planar Waveguide
A quasi continuous wave Nd∶YAG planar waveguide laser amplifier with a wavelength of 1319 nm is reported. The seed source is an oscillator based on a side-pumped rod Nd:YAG laser model, and the gain medium of the amplifier is a planar waveguide Nd∶YAG. The size of the YAG planar waveguide is 0.6 mm×10 mm×60 mm, the central area 0.1 mm×10 mm×50 mm is the doped region, and the surrounding area is undoped YAG. The pump source of the amplifier is a diode laser array, which is coupled from the rear end into the planar waveguide gain medium. The seed laser is coupled into the gain medium via the end facet, and a single-pass amplification is introduced. In order to achieve the good heat dissipation, two micro channel heat sinks are welded onto the Nd∶YAG planar waveguide. The end facets are coated high transmission at 1319, 1064 and 808 nm. When the driving current of the diode laser arrays is 110 A and the pulse repetition rate is 200 Hz, the output of 36 mJ 1319 nm laser is obtained, and the optical to optical efficiency is 8.3%.
Get Citation
Copy Citation Text
Weiping Lin, Lei Zhang, Juntao Wang, Yuejian Chen, Liu Xu, Dan Wang, Tangjian Zhou, Lixin Tong, Yanhua Lu, Qingsong Gao. Amplification Properties of 1319 nm Nd∶YAG Planar Waveguide[J]. Laser & Optoelectronics Progress, 2019, 56(1): 011404
Category: Lasers and Laser Optics
Received: Jun. 14, 2018
Accepted: Jul. 20, 2018
Published Online: Aug. 1, 2019
The Author Email: Wang Juntao (wjt_caep@126.com)