Title :
Semiconductor laser diode optical amplifiers/gates in photonic packet switching
Author :
Shibata, Yasuo ; Yamada, Yoshiaki ; Habara, Keishi ; Yoshimoto, Naoto
Author_Institution :
NTT Opt. Network Syst., Kanagawa, Japan
fDate :
12/1/1998 12:00:00 AM
Abstract :
In this paper, we will describe how semiconductor laser diode optical amplifiers/gates can be used in the photonic packet switching systems based on wavelength division multiplexed (WDM) techniques. First, we show that cross-gain modulation (XGM) can be suppressed when the device is used in the transparent condition of the waveguide material even when the input signal power exceeds +18 dBm. We then discuss an appropriate encoding for the optical signal. Experimental results show that high bit rate Manchester-encoding enables the use of semiconductor laser diode optical amplifiers/gates in the gain condition as well as the transparent condition. Finally, a new photonic packet receiver which utilizes a semiconductor laser diode optical amplifier as a packet power equalizer is proposed. This receiver accepts 17 dB power fluctuation at nanosecond speed for 10 Gb/s Manchester-encoded signal
Keywords :
electro-optical modulation; encoding; optical receivers; packet switching; photonic switching systems; semiconductor lasers; wavelength division multiplexing; 10 Gbit/s; Gb/s Manchester-encoded signal; WDM; cross-gain modulation; encoding; gain condition; high bit rate Manchester-encoding; input signal power; nanosecond speed; optical signal; packet power equalizer; photonic packet receiver; photonic packet switching; photonic packet switching systems; power fluctuation; semiconductor laser diode gates; semiconductor laser diode optical amplifiers; transparent condition; waveguide material; wavelength division multiplexed; Diode lasers; Optical modulation; Optical packet switching; Optical receivers; Optical waveguides; Packet switching; Semiconductor optical amplifiers; Semiconductor waveguides; Stimulated emission; Wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
