Share Email Print
cover

Optical Engineering

High-repetition-rate tunable mid-infrared optical parametric oscillator based on MgO: periodically poled lithium niobate
Author(s): Yongji Yu; Xinyu Chen; Jing Zhao; Chao Wang; Chunting Wu; Guangyong Jin
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

A mid-infrared optical parametric oscillator (OPO) with an idler wavelength of 3.85 μm at a repetition rate of 200 kHz is presented, and a high-repetition-rate electro-optic (EO) Q-switched NdGdVO4 laser with a double-crystal RbTiOPO4 EO modulator is used as the pump source. The OPO is designed as an extracavity singly resonant optical parametric oscillator. The threshold value of the OPO system is only 1.3 W at 1.06 μm. When the MgO: periodically poled lithium niobate (MgO: PPLN) crystal is operated at 90°C and the pump power is 10.5 W with a repetition of 200 kHz, a maximum average output power of 1.82 W at idler wavelength of 3.85 μm and pulse width of 14.3 ns are obtained. The slope efficiency of the 3.85-μm laser with respect to the pump laser is 21.3%. The M2 factors of the 3.85-μm laser are 1.84 and 1.76 in the parallel and perpendicular directions, respectively. The mid-infrared tunability of 3.7 to 3.9 μm can be achieved by adjusting the temperature of MgOPPLN crystal from 210 to 35°C.

Paper Details

Date Published: 2 December 2013
PDF: 5 pages
Opt. Eng. 53(6) 061604 doi: 10.1117/1.OE.53.6.061604
Published in: Optical Engineering Volume 53, Issue 6
Show Author Affiliations
Yongji Yu, Changchun Univ. of Science and Technology (China)
Xinyu Chen, Changchun Univ. of Science and Technology (China)
Jing Zhao, Changchun Univ. of Science and Technology (China)
Chao Wang, Changchun Univ. of Science and Technology (China)
Chunting Wu, Changchun Univ. of Science and Technology (China)
Guangyong Jin, Changchun Univ. of Science and Technology (China)


© SPIE. Terms of Use
Back to Top