학술논문

Fully stabilized electroabsorption-modulated tunable DBR laser transmitter for long-haul optical communications
Document Type
Periodical
Source
IEEE Journal of Selected Topics in Quantum Electronics IEEE J. Select. Topics Quantum Electron. Selected Topics in Quantum Electronics, IEEE Journal of. 7(2):168-177 Apr, 2001
Subject
Engineered Materials, Dielectrics and Plasmas
Photonics and Electrooptics
Tunable circuits and devices
Distributed Bragg reflectors
Laser stability
Semiconductor lasers
Power lasers
Circuit stability
Optical transmitters
Optical control
Chirp
Indium phosphide
Language
ISSN
1077-260X
1558-4542
Abstract
We report on a fully functional 2.5-Gb/s electroabsorption (EA)-modulated wavelength-selectable laser module meeting all long-haul transmission requirements for stability, chirp, power and linewidth over 20 channels on a 50-GHz grid. Based on a highly integrated InP chip comprising a distributed Bragg reflector (DBR) laser, semiconductor optical amplifier, power monitor, and EA-modulator, the compact transmitter module also contains optics and control circuits necessary to ensure simultaneous long-term wavelength and mode stability. We have achieved 2.5-Gb/s transmission on all 20 channels over 680 km of standard fiber.