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We demonstrate discrete wavelength tuning with a heterogeneously integrated III–V-on-silicon sampled grating distributed feedback laser. With only two injection currents, the laser is tunable over a wavelength range larger than 55 nm in wavelength steps of 5 nm. A maximum waveguide-coupled output power of 15 dBm is obtained as well as a high side mode suppression of more than 33 dB for all wavelength...
A novel III-V/SOI sampled grating DFB laser is experimentally demonstrated. Two input currents allow wavelength tuning over a 55 nm wide range in discrete wavelength steps of 5 nm. A side mode suppression ratio larger than 33 dB is obtained for all wavelength channels.
A low-cost cascade tunable semiconductor distributed feedback (DFB) laser is proposed based on the reconstruction equivalent chirp (REC) technique and experimentally demonstrated for the first time. It covers 9nm continuous tuning range by changing the temperature. The side mode suppression ratios are above 42dB over the tuning range. The current and temperature coefficients of wavelength tuning are...
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