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We demonstrated fast optical power control and wavelength switching in a tunable SOA-integrated SGDBR laser. With our design, output power of the laser can be precisely controlled within 0.1 dB and rapidly shuttered within 2 ns.
In this paper, the authors characterize the linewidth of a four-section SG-DBR laser, using the self-heterodyne method, as a function of both phase current, and back and front mirror currents. The tuning curves of linewidth versus different front and back grating currents are shown. The current of the front grating is scanned from 0 to 40 mA with 0.5 mA step, while the current of the back grating...
The authors demonstrate a compensation scheme to reduce the frequency chirp associated with directly modulated sampled grating distributed Bragg reflector tunable lasers. Experimental results obtained show that the direct modulation of the laser's gain section results in a large frequency chirp of 25 GHz. However, by simultaneous modulation of the laser's phase section this large frequency chirp can...
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