Open Access155-μm high-peak, high-average-power laser amplifier using an Er,Yb:glass planar waveguide for wind sensing coherent Doppler lidar
Author(s) -
Takeshi Sakimura,
Kenichi Hirosawa,
Yojiro Watanabe,
Toshiyuki Ando,
Shumpei Kameyama,
Kota Asaka,
Hisamichi Tanaka,
Masashi Furuta,
Masahiro Hagio,
Y. Hirano,
Hamaki Inokuchi,
Takayuki Yanagisawa
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.024175
Subject(s) - optics , amplifier , waveguide , materials science , laser , lidar , brillouin scattering , optical amplifier , planar , optoelectronics , physics , computer graphics (images) , cmos , computer science
We have developed a high-gain, high-peak-power laser amplifier at an eye-safe 1.55 μm wavelength using an Er,Yb:glass planar waveguide for wind sensing coherent Doppler lidars (CDLs). Our planar waveguide is free from stimulated Brillouin scattering and realizes high gain thanks to its multi-bounce optical-path configuration. A peak power of 5.5 kW with a pulse energy of 3.2 mJ is achieved at the repetition frequency of 4 kHz, which leads to an average power of 12.8 W. The gain is more than 23 dB. The wind sensing at more than 30 km is demonstrated with a CDL using the developed amplifier.