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Significant enhancement in the direct amplitude modulation bandwidth of an SG-DBR laser has been demonstrated under strong injection-locking conditions, where the wavelength detuning between the master and the free-running SG-DBR slave laser is varied from -8.58 to 13.6 nm. It is demonstrated that the relaxation resonance frequency of a strongly injection-locked SG-DBR laser increases from 1.05 GHz...
We demonstrate 26 hours of error-free wavelength switching in less than 50 ns between 32 ITU channels with 100 GHz spacing using a grating assisted codirectional coupler with rear sampled grating reflector (GCSR) laser. This corresponds to a packet-loss rate less than 2times10-11. We also examine the effect of different switching schedules, an important issue for commercial switch fabrics
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