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We present a real-time approach for stabilizing a III-V/Si hybrid external-cavity laser implemented using microring monitoring and a feedback control loop. Laser mode stabilization over bias current and stage temperature variations are experimentally demonstrated. We achieved single-mode and mode-hop-free laser operation as the bias current was swept across 320 mA. The same feedback control also enabled...
We demonstrated wavelength locking for a high speed ring modulator using a low-power integrated balanced homodyne CMOS controller. Locking for wavelength change of 4 nm and substrate temperature change of 40°C was achieved.
A 1550nm external-cavity hybrid III-V/SOI laser with a room-temperature threshold current of 18mA and output powers up to 4mW was demonstrated with a novel assembly technique. An edge-coupled 1×6 laser array was passively aligned with sub-micron positional tolerance.
Stable mode-hop-free operation for a Si/III-V hybrid external-cavity laser was demonstrated during 320mA bias current sweep using a real-time ring monitoring, a fast feedback control loop, and a simple bang-bang control algorithm, by both tunable micro-ring filter and cavity phase section.
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