Title :
Isolator-free transmission at 2.5 Gbits/s over 100 km of single-mode fiber by a 1.55-μm, AlGaInAs strained-multi-quantum-well, directly modulated distributed-feedback laser diode
Author :
Sahara, Richard T. ; Salvatore, Randal A. ; Hohl-AbiChedid, Angela ; Lu, Hanh
Author_Institution :
Corning Lasertron, Bedford, MA, USA
fDate :
6/1/2002 12:00:00 AM
Abstract :
The performance of 1550 nm, distributed feedback laser diode modules without an optical isolator is presented. The laser has a complex coupled grating formed by current injection with a strong coupling coefficient of κ = 45 + 30i cm-1. The spectrum, relative intensity noise, and bit-error rate were characterized with up to 20% back reflection into the module. Through error rates of 10-10, no error floor was found and the dispersion penalty remained less than 2.0 dB for a data rate of 2.5 Gbits/s over 100 km of SMF-28
Keywords :
III-V semiconductors; aluminium compounds; distributed feedback lasers; gallium arsenide; indium compounds; laser noise; optical modulation; optical transmitters; quantum well lasers; waveguide lasers; 1.55 micron; 100 km; 2.5 Gbit/s; AlGaInAs; Bragg modes; back reflection; bit-error rate; complex coupled grating; current injection; directly modulated DFB laser diode; dispersion penalty; isolator-free transmission; optical isolators; relative intensity noise; ridge waveguide laser diodes; single-mode fiber; strained-multi-quantum-well diode; strong coupling coefficient; wavelength division multiplexing systems; Bit error rate; Diode lasers; Distributed feedback devices; Gratings; Isolators; Laser feedback; Laser noise; Optical coupling; Optical feedback; Optical noise;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2002.1005412
