III/V silicon hybrid laser based on a resonantBragg structure
2020
We demonstrate a laser tunable in intensity with gigahertz tuning
speed based on a III/V reflective semiconductor optical amplifier (RSOA)
coupled to a silicon photonic chip. The silicon chip contains a
Bragg-based Fabry–Perot resonator to form a passive bandpass filter within
its stopband to enable single-mode operation of the laser. We observe a
side mode suppression ratio of 43 dB, linewidth of 790 kHz, and an optical
output power of 1.65 mW around 1530 nm. We also investigate using a
micro-ball lens as an alternative coupling method between the RSOA and the
silicon chip.
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