Title :
1.5-μm tunable DBR lasers for WDM multiplex spare function
Author_Institution :
CNET, France Telecom, Marcoussis, France
fDate :
6/1/2000 12:00:00 AM
Abstract :
A DBR laser has been developed to realize wavelength-division multiplexing multiplex spare board with a potential at least for 16 wavelengths spaced by 100 GHz or 32 by 50 GHz. Two currents and the temperature are used to fix the emitted wavelength to the International Telecommunications Union grid. The constant output power delivered on all these channels is as high as 10 dBm coupled into the fiber. Burned devices exhibit no wavelength drift on the whole tuning range over more than 4000 h at 60/spl deg/C.
Keywords :
ageing; distributed Bragg reflector lasers; infrared sources; laser transitions; laser tuning; life testing; semiconductor device testing; semiconductor lasers; wavelength division multiplexing; 1.5 mum; 1.5-/spl mu/m tunable DBR lasers; 4000 h; 60 C; DBR laser; International Telecommunications Union grid; WDM multiplex spare function; constant output power delivery; emitted wavelength; spare board; wavelength spacing; wavelength-division multiplexing; whole tuning range; Distributed Bragg reflectors; Distributed feedback devices; Laser tuning; Optical transmitters; Power generation; Samarium; Temperature; Tunable circuits and devices; Voltage; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
