Title :
Wavelength tunable semiconductor lasers for optical fiber communications
Author_Institution :
Bellcore, Red Bank, NJ, USA
Abstract :
Recent progress in the area of wavelength tunable semiconductor lasers for advanced optical fiber communications is reviewed. The tuning characteristics are described, and applications for multiwavelength packet switching in photonic networks are presented. Simultaneous wavelength switching and data modulation up to 20 ASK (amplitude shift keying) wavelength channels and 48 FSK (frequency shift keying) wavelength channels at 200 Mb/s for each channel are possible with a three-sectioned tunable DBR (distributed Bragg reflector) laser having a continuous tuning range of 2.2 nm (290 GHz). The switching speed from one wavelength to another was only a few nanoseconds.<>
Keywords :
amplitude modulation; distributed Bragg reflector lasers; frequency division multiplexing; frequency shift keying; optical communication equipment; packet switching; semiconductor junction lasers; tuning; 200 Mbit/s; ASK; FSK; amplitude shift keying; continuous tuning range; data modulation; distributed Bragg reflector; frequency shift keying; multiwavelength packet switching; optical fiber communications; photonic networks; progress; switching speed; tunable DBR laser; tuning characteristics; wavelength switching; wavelength tunable semiconductor lasers; Amplitude shift keying; Distributed Bragg reflectors; Fiber lasers; Frequency shift keying; Laser tuning; Optical fiber communication; Optical fibers; Optical tuning; Semiconductor lasers; Tunable circuits and devices;
Conference_Titel :
Electron Devices Meeting, 1989. IEDM '89. Technical Digest., International
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-0817-4
DOI :
10.1109/IEDM.1989.74184
