Abstract

It is desirable that future high-capacity systems have the same line-amplifier spacing as existing systems from the view point of upgrade strategy because re-arranging the line-amplifier spacing may force office reallocation. Moreover, the combined effect of SPM and GVD will be a serious problem for development of higher capacity systems, which have to have high launched powers to achieve adequate signal-to-noise-ratios. Equalization technique is indispensable to overcome this problem. Recently, a monolithic mode-locked laser diode (ML-LD)^1,2 was developed as the several pico-seconds pulses light-source for OTDM systems.

© 1996 Optical Society of America