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Spectral Phase Transitions in Optical Parametric Oscillators

Roy, Arkadev and Jahani, Saman and Langrock, Carsten and Fejer, Martin and Marandi, Alireza (2020) Spectral Phase Transitions in Optical Parametric Oscillators. . (Unpublished)

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Spectral behaviors of photonic resonators have been the basis for a range of fundamental studies, with applications in classical and quantum technologies. Driven nonlinear resonators provide a fertile ground for phenomena related to phase transitions far from equilibrium, which can open opportunities unattainable in their linear counterparts. Here, we show that optical parametric oscillators (OPOs) can undergo second-order phase transitions in the spectral domain between degenerate and non-degenerate regimes. This abrupt change in the spectral response follows a square-root dependence around the critical point, exhibiting high sensitivity to parameter variation akin to systems around an exceptional point. We experimentally demonstrate such a phase transition in a quadratic OPO, map its dynamics to the universal Swift-Hohenberg equation, and extend it to Kerr OPOs. To emphasize the fundamental importance and consequences of this phase transition, we show that the divergent susceptibility of the critical point is accompanied by spontaneous symmetry breaking and distinct phase noise properties in the two regimes, indicating the importance of a beyond nonlinear bifurcation interpretation. We also predict the occurrence of first-order spectral phase transitions in coupled OPOs. Our results on non-equilibrium spectral behaviors can be utilized for enhanced sensing, advanced computing, and quantum information processing.

Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription Paper ItemConference Paper
Jahani, Saman0000-0003-4831-2276
Langrock, Carsten0000-0002-2947-5312
Fejer, Martin0000-0002-5512-1905
Marandi, Alireza0000-0002-0470-0050
Additional Information:We acknowledge stimulating discussions with Avik Dutt, Mohammad-Ali Miri, Myoung-Gyun Suh, Li-Ping Yang, Marc Jankowski. The authors gratefully acknowledge support from ARO Grant No. W911NF-18-1-0285 and NSF Grant No. 1846273 and 1918549, and AFOSR award FA9550-20-1-0040. The authors wish to thank NTT Research for their financial and technical support.
Funding AgencyGrant Number
Army Research Office (ARO)W911NF-18-1-0285
Air Force Office of Scientific Research (AFOSR)FA9550-20-1-0040
Record Number:CaltechAUTHORS:20201005-094314104
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:105779
Deposited By: Tony Diaz
Deposited On:05 Oct 2020 17:19
Last Modified:05 Oct 2020 17:19

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