Using a two-photon correlated-spontaneous-emission laser (CEL) as an example, I show that a non-Lorentzian spectrum of squeezing is the result of fluctuation coupling and that the narrow peak at the center of the spectrum is a reflection of the fluctuations in the conjugate quadrature. More than 90% extracavity phase squeezing can be generated by the two-photon CEL near threshold with large one-photon detunings.
© 1991 Optical Society of America
Ning Lu, "Effect of fluctuation coupling on the spectrum of squeezing," J. Opt. Soc. Am. B 8, 1135-1138 (1991)