Threshold and linewidth of a mirrorless parametric oscillator

Abstract

We analyze the above-threshold behavior of a mirrorless parametric oscillator based on resonantly enhanced four wave mixing in a coherently driven dense atomic vapor. It is shown that, in the ideal limit, an arbitrary small flux of pump photons is sufficient to reach the oscillator threshold. We demonstrate that due to the large group-velocity delays associated with coherent media, an extremely narrow oscillator linewidth is possible, making a narrow-band source of non-classical radiation feasible.

revised version to appear in Phys.Rev.Lett., contains discussion on threshold conditions and operation on few-photon level

References in corpus (2)

• Ultra-Slow Light and Enhanced Nonlinear Optical Effects in a Coherently Driven Hot Atomic Gas
• Parametric Self-Oscillation via Resonantly Enhanced Multiwave Mixing

Cited by in corpus (8)

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• Propagation of Raman-matched laser pulses through a Bose-Einstein condensate
• Full quantum solutions to the resonant four-wave mixing of two single-photon wave packets
• Slow light propagation in trapped atomic quantum gases
• Mirrorless optical parametric oscillator inside an all-optical waveguide