High-bit-rate pulse regeneration and modulation of injection lasers with a planar Gunn device

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High-bit-rate pulse regeneration and modulation of injection lasers with a planar Gunn device

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A simple circuit with a Schottky-barrier-gate Gunn device is presented, which works as a pulse regenerator and modulator for laser diodes. Modulation depth and bias voltages of both Gunn device and laser are separately adjustable, allowing quick adaption for different laser diodes. The circuit was tested with a p.c.m. word at 1.5 Gbit/s.

Inspec keywords: Gunn devices; semiconductor junction lasers; optical communication equipment; laser accessories; optical modulation

Other keywords: injection laser modulation; pulse regenerator and modulator; high bit rate pulse regeneration; planar Gunn device; pulse regeneration; Schottky barrier gate Gunn device; PCM words; 1.5 Gbit/s data rate

Subjects: Laser accessories and instrumentation; Bulk effect devices; Lasing action in semiconductors; Semiconductor lasers; Optical communication devices, equipment and systems; Optical beam modulators; Laser beam modulation, pulsing and switching; mode locking and tuning; Optical communication

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