Quantum Noise Reduction of the Pump Field in an Optical Parametric Oscillator

Katsuyuki Kasai, Gao Jiangrui, Ling-An Wu and Claude Fabre
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Katsuyuki Kasai: Ministry of Posts & Telecommunications, Communications Research Laboratory
Gao Jiangrui: Shanxi University, Opto-Electronics Institute
Ling-An Wu: Academia Sinica, Institute of Physics
Claude Fabre: Université P.M.Curie, Laboratoire Kastler Brossel de l’Ecole Normale Supérieure

A chapter in Quantum Communication, Computing, and Measurement, 1997, pp 439-444 from Springer

Abstract: Abstract Quantum noise properties of the pump field in an Optical Parametric Oscillator (OPO) are experimentally studied. We constructed a cw semimonolithic KTP triply resonant OPO, which had an extremely low oscillation threshold of 0.4 mW. The pump beam reflected back from this OPO is squeezed through strong parametric interactions. The observed intensity noise quickly changes in the bistable region of the OPO when the cavity length is scanned, and a quantum noise reduction of 24% is preliminarily demonstrated.

Date: 1997
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DOI: 10.1007/978-1-4615-5923-8_47

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