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摘要
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.
- 出版日期2018-6-11
- 单位南开大学
