Title :
Broad-band reactive matching of high-speed directly modulated laser diodes
Author :
Goldsmith, Charles L. ; Kanack, Brad
Author_Institution :
Texas Instrum. Inc., Dallas, TX, USA
Abstract :
The design and demonstration of an octave bandwidth impedance matching network for directly modulated diode lasers are considered. Compact semilumped matching structures have been designed and fabricated at microwave frequencies with near theoretical performance. The laser was matched to 50 Omega over the 2-4-GHz band, achieving greater than 13-dB return loss and a dramatic 10-dB improvement in fiber link insertion loss and sensitivity. Excellent agreement was obtained between measured and simulated fiber link performance.<>
Keywords :
equivalent circuits; impedance matching; laser accessories; microwave circuits; modelling; optical communication equipment; optical modulation; passive networks; semiconductor lasers; LD matching; broadband matching; directly modulated; fiber link insertion loss; high-speed; impedance matching network; laser diodes; microwave frequencies; octave bandwidth; reactive matching; semilumped matching structures; Band pass filters; Bandwidth; Chebyshev approximation; Diode lasers; Fiber lasers; Impedance matching; Impedance measurement; Insertion loss; Laser modes; Optical design;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
