Fully integrated tunable III-V/Si laser with on-chip SOA
Journal of Lightwave Technology(2024)
摘要
Silicon-photonics based high volume manufacturable lasers are playing an increasingly important role in optical communication and sensing due to their low-cost, high performance, and seamless integration with other silicon photonics components. Here we demonstrate a silicon-photonics based widely tunable laser with integrated semiconductor optical amplifier (SOA) and wavelength reference on a high-volume, 300-mm III-V/Si integration platform. The laser shows a tuning range > 50 nm with side-mode suppression ratio > 55 dB, Lorentzian linewidth < 30 kHz, and relative intensity noise (RIN) < −150 dB/Hz across the entire tuning range. We also demonstrate an active control of the laser. When locked to an external wavelength reference, the laser shows a frequency error < 1 GHz against changes to the chip temperature. Amplified by an SOA, the on-chip optical power exceeds 17 dBm. Such tunable lasers can be integrated with other silicon-based photonic components including high-speed modulators and detectors for a variety of applications, ranging from optical communication to sensing.
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关键词
Lasers,tunable lasers,silicon integrated photonics,optical ring resonators,vernier effect
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