Title :
Extremely abrupt μW-class all-optical inverter characteristics brought about with a single laser diode device of dual-modes
Author :
Takita, Y. ; Kishi, M. ; Tsuchiya, M.
Author_Institution :
Dept. of Electron. Eng., Univ. of Tokyo, Japan
Abstract :
We have studied two kinds of dual-mode laser diode devices with external optical input signals and found out an all-optical "digital" inverter action in each device. The MLLD-based photonic inverter exhibited extremely abrupt μW-class switching characteristics which are expected to lead to the 2R actions in a simple and cost-effective way. We have confirmed its dynamic operation for a 155.52 Mb/s NRZ PRBS data stream and its 3 dB bandwidth of 1.8 GHz. A DFB-LD-based photonic inverter has been examined also and a little higher operation speed (2.8 GHz) has been derived in accordance with its higher relaxation oscillation frequency. We believe that this scheme has potential for practical and cost-effective applications in the future photonic networks although one needs to improve its noise suppression functionality and operation speed.
Keywords :
distributed feedback lasers; electro-optical switches; laser modes; optical communication equipment; optical repeaters; semiconductor lasers; 1.8 GHz; 155.52 Mbit/s; 2.8 GHz; 2R function; DFB-LD based photonic inverter; all-optical digital inverter action; dual mode single laser diode device; dual-mode laser diode devices; dynamic operation; external optical input signals; extremely abrupt μW-class all-optical inverter characteristics; extremely abrupt μW-class switching; noise suppression functionality; operation speed; optical regenerator; photonic networks; relaxation oscillation frequency; Band pass filters; Diode lasers; Inverters; Optical devices; Optical filters; Optical interferometry; Optical modulation; Optical noise; Semiconductor optical amplifiers; Stimulated emission;
Conference_Titel :
Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002
Print_ISBN :
1-55752-701-6
DOI :
10.1109/OFC.2002.1036674
