Sub-pm linewidth nanosecond Nd:GYSGG laser at 1336.6 nm.
We demonstrate a sub-pm linewidth acousto-optic (AO) Q-switched nanosecond Nd:GYSGG ring laser at 1336.6 nm side-pumped by 808-nm quasi-continuous wave (QCW) diode lasers for the first time. With incident pulse energy of 4.23 J at 10 Hz, a maximum output macropulse energy of 36.7 mJ at 1336.6 nm with linewidth of less than 0.85 pm and a micropulse width of 300 ns was obtained at a repetition rate of 80 Hz, corresponding to an average micropulse peak power of 15.3 kW. The M² factors were measured to be 1.42 and 1.10 in x and y directions, respectively. It can be tuned from 1336.576 to 1336.652 nm with a tuning resolution of 1 pm. The 1336.632 nm can be converted to deep ultraviolet (DUV) laser at 167.079 nm through its eighth harmonics, which is very useful for the ²⁷Al⁺ optical frequency standard.
Hui
H
Li
Zhi-min
ZM
Wang
Feng-feng
FF
Zhang
Ming-qiang
MQ
Wang
Jia-jia
JJ
Li
Yu-lin
YL
Mao
Lei
L
Yuan
Nan
N
Zong
Shen-jin
SJ
Zhang
Feng
F
Yang
Yong
Y
Bo
Chun-qing
CQ
Gao
Da-fu
DF
Cui
Qin-jun
QJ
Peng
Zu-yan
ZY
Xu