Open AccessUpper temperature limit and multi-channel effects in ellipsoidal lithium-niobate optical parametric oscillators
Author(s) -
Wenbo Mao,
W. Deng,
Bo Fang,
Feng Gao,
Guoquan Zhang,
Jingjun Xu
Publication year - 2018
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.26.015268
Subject(s) - opos , lithium niobate , whispering gallery wave , optics , physics , limit (mathematics) , wavelength , laser , materials science , optical parametric oscillator , mathematical analysis , mathematics
This paper theoretically investigated type-I optical parametric oscillations (OPOs) in lithium niobate (LN) ellipsoidal microcavities. We calculated the dependence of signal (idler) wavelength on temperature and found that multiple OPO channels are universal phenomenon in LN whispering gallery mode (WGM) microcavities. Additionally, We discovered OPOs in LN WGM microcavities, instead of having a lower-temperature limit, have an upper-temperature limit beyond which no OPO takes place. The dependence of the OPO tuning behaviors on the cavity geometry and pump wavelength was discussed systematically. Our investigations provide new conceptions for OPOs in LN WGM microcavities and may benefit the research on tunable laser sources or high-order entangled photon sources.