Demonstration of stable wavelength switching on a fast tunable laser transmitter

Bhardwaj, A.,Gripp, J.,Simsarian, J.E.,Zirngibl, M.

Photonics Technology Letters, IEEE（2003）

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摘要

We describe a new technique to investigate continuous wavelength switching between 32 ITU channels in a tunable laser transmitter by switching the laser once every microsecond. We examine the effect of different switching schedules on the switching of the laser, an important issue for commercial switch fabrics for optical packet routing. Switching to all 32 channels of the laser is characterized in terms of a "packet-loss rate" (PLR) due to wavelength switching. PLRs are studied as a function of the switching-time window for a laser to tune to an ITU channel. Error-free wavelength switching in less than 50 ns is demonstrated for 26 hours.

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关键词

laser tuning,optical directional couplers,optical transmitters,packet switching,photonic switching systems,semiconductor lasers,50 ns,ITU channels,commercial switch fabrics,continuous wavelength switching,error-free wavelength switching,fast tunable laser transmitter,optical packet routing,packet-loss rate,rear sampled grating reflector semiconductor laser,stable wavelength switching,switching schedules,switching-time window,vertical grating assisted codirectional coupler,widely tunable lasers

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