High-efficiency diode-pumped actively Q-switched ceramic Nd:YAG/BaWO₄ Raman laser operating at 1666 nm.
A diode-pumped actively Q-switched Raman laser employing BaWO4 as the Raman active medium and a ceramic Nd:YAG laser operating at 1444 nm as the pump source is demonstrated. The first-Stokes-Raman generation at 1666 nm is achieved. With a pump power of 20.3 W and pulse repetition frequency rate of 5 kHz, a maximum output power of 1.21 W is obtained, which is the highest output power for a 1.6 μm Raman laser. The corresponding optical-to-optical conversion efficiency is 6%; the pulse energy and peak power are 242 μJ and 8.96 kW, respectively.
H N
HN
Zhang
X H
XH
Chen
Q P
QP
Wang
X Y
XY
Zhang
J
J
Chang
L
L
Gao
H B
HB
Shen
Z H
ZH
Cong
Z J
ZJ
Liu
X T
XT
Tao
P
P
Li
D002516:Ceramics / Q000528:radiation effects; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D053844:Lasers, Solid-State; D011829:Radiation Dosage; D013059:Spectrum Analysis, Raman / Q000295:instrumentation*