Abstract

Pulse squeezed state generation using optical fibers has attracted a lot of attention recently. By using a fiber loop interferometer, pulse squeezed vacuum has been successfully generated at the 1.55 μm wavelength with 1.1. dB squeezing observed.¹ In the experiment, 200-fs solitons from a mode-locked color-center laser were used. It has been well known that the self-Raman effect can produce self-frequency shift of a soliton.² It is natural to expect that it also has some impacts on the achievable squeezing ratio. This is the question we would like to answer in the present paper.

© 1994 IEEE