Open AccessSelf-injection-locking of a CW-OPO by intracavity frequency-doubling the idler wave
Author(s) -
DongHoon Lee,
M.E. Klein,
Jan-Peter Meyn,
P. Groβ,
R. Wallenstein,
Klaus J. Boller
Publication year - 1999
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.5.000114
Subject(s) - optics , opos , optical parametric oscillator , injection locking , second harmonic generation , grating , materials science , nonlinear optics , continuous wave , signal (programming language) , optical parametric amplifier , amplifier , laser , physics , optoelectronics , optical amplifier , cmos , computer science , programming language
We report on the observation of self-injection-locking of the signal wave of an optical parametric oscillator (OPO) with the intracavity frequency doubled idler wave. The two-mirror OPO is based on a periodically poled LiNbO3 (PPLN) crystal and pumped with a grating stabilized, continuous-wave (CW) single-frequency diode master-oscillator power-amplifier (MOPA) system. Simultaneous quasi-phase-matching (QPM) of OPO and second harmonic generation (SHG) is provided in the same crystal which carries two different domain gratings. The beat of the signal wave and the frequency-doubled idler wave is suppressed within a 500-kHz wide frequency range centered around zero as expected for self-injection- locking. The measurements prove the feasibility of optically phase-stabilized by-three-division of an optical frequency with CW-OPOs using cascaded nonlinearities.