Abstract

Recently the use of periodically spaced, phase-sensitive optical parametric amplifiers was proposed for compensating for linear loss in a nonlinear fiber-optic communication line [Opt. Lett. 18, 803 (1993)]. In the previous analysis, in which the stability of a single pulse was investigated, the variation of the amplifier phases was neglected. In a physically realizable line, however, the phase of each amplifier would most likely be locked to the phase of the signal pulse or to the average of the phases of many such pulses. Here an analysis is presented in which the amplifier phase is allowed to vary in response to a signal pulse’s optical phase. The analysis shows that the solitonlike signal pulses remain stable even with this additional phase variation.

© 1995 Optical Society of America

Pulse propagation in nonlinear optical fiber lines that employ phase-sensitive parametric amplifiers

J. Nathan Kutz, Cheryl V. Hile, William L. Kath, Ruo-Ding Li, and Prem Kumar
J. Opt. Soc. Am. B 11(10) 2112-2123 (1994)

Long-distance pulse propagation in nonlinear optical fibers by using periodically spaced parametric amplifiers

J. Nathan Kutz, William L. Kath, Ruo-Ding Li, and Prem Kumar
Opt. Lett. 18(10) 802-804 (1993)

Reduction of fiber-nonlinearity-enhanced amplifier noise by means of phase-sensitive amplifiers

Wataru Imajuku and Atsushi Takada
Opt. Lett. 22(1) 31-33 (1997)

Periodic amplification and conjugation of optical solitons

Christopher G. Goedde, William L. Kath, and Prem Kumar
Opt. Lett. 20(12) 1365-1367 (1995)

Stabilizing dark solitons by periodic phase-sensitive amplification

Arnold D. Kim, William L. Kath, and Christopher G. Goedde
Opt. Lett. 21(7) 465-467 (1996)