Abstract

The most efficient sources of squeezed light have employed χ⁽²⁾ processes in parametric downconversion or upconversion. In second harmonic generation both the fundamental and second harmonic modes are in an amplitude squeezed state. The upconverted mode is the squeezed state with the shortest wavelength involved in the process; therefore, frequency doubling is a promising scheme with which squeezing can be pushed toward the blue end of the spectrum. We measured the amplitude and phase noise properties of the second harmonic light generated in a frequency doubling monolithic cavity.

© 1990 Optical Society of America