title: Theoretical and experimental investigation of singly resonant optical parametric oscillator under double-pass pumping.
abstract: The singly resonant optical parametric oscillator (SRO) under double-pass pumping in a two-mirror linear cavity is investigated theoretically and experimentally. Different output couplers are used in the periodically poled lithium niobate based SRO to optimize the extracted signal output. When the 2.5% output coupler is used, a pump threshold as low as 3.7 W is achieved, and 6.2 W of signal at 1.56 μm with the linewidth of 62.5 kHz is obtained at pump power of 14.5 W. The measured signal frequency drift and peak-to-peak power fluctuation are less than ±40 MHz and ±0.9% in a given 1 h, respectively.
authors.forename: Peng
authors.initials: P
authors.lastname: Li
authors.forename: Yuanji
authors.initials: Y
authors.lastname: Li
authors.forename: Jinxia
authors.initials: J
authors.lastname: Feng
authors.forename: Kuanshou
authors.initials: K
authors.lastname: Zhang