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Quantum Physics, quant-ph
Abstract:
We theoretically analyze the noise transformation of a high power
continuouswave light field that is reflected off a critical Kerr non-linear
cavity (KNLC). Our investigations are based on a rigorous treatment in the
time-domain. Thereby, realistic conditions of a specific experimental
environment including optical intra-cavity loss and strong classical driving
noise can be modeled for any KNLC. We show that even in the presence of optical
loss and driving noise considerable squeezing levels can be achieved. We find
that the achievable squeezing levels are not limited by the driving noise but
solely by the amount of optical loss. Amplitude quadrature squeezing of the
reflected mean field is obtained if the KNLC's operating point is chosen
properly. Consistently, a KNLC can provide a passive, purely optical reduction
of laser power noise as experimentally demonstrated in [1]. We apply our model
to this experiment and find good agreement with measured noise spectra.
