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Scalable single-microring hybrid III-V/Si lasers for emerging narrow-linewidth applications. | LitMetric

AI Article Synopsis

  • * The research focuses on developing a high-performance hybrid laser that simplifies control, utilizing only two parameters, thus facilitating easier industrial integration compared to current complex designs.
  • * This laser achieves impressive metrics, including a high output power of 16.4 mW, a narrow linewidth of 2.79 kHz, and successful optical data transmission at 12.5 Gb/s with a signal-to-noise ratio of 10 dB.

Article Abstract

Silicon photonics, compatible with large-scale silicon manufacturing, is a disruptive photonic platform that has indicated significant implications in industry and research areas (e.g., quantum, neuromorphic computing, LiDAR). Cutting-edge applications such as high-capacity coherent optical communication and heterodyne LiDAR have escalated the demand for integrated narrow-linewidth laser sources. To that effect, this work seeks to address this requirement through the development of a high-performance hybrid III-V/silicon laser. The developed integrated laser utilizes a single microring resonator (MRR), demonstrating single-mode operation with a side mode suppression ratio (SMSR) exceeding 45 dB, with laser output power as high as 16.4 mW. Moving away from current hybrid/heterogeneous laser architectures that necessitate multiple complex controls, the developed laser architecture requires only two control parameters. Importantly, this serves to streamline industrial adoption by reducing the complexity involved in characterizing these lasers, at-scale. Through the succinct structure and control framework, a narrow laser linewidth of 2.79 kHz and low relative intensity noise (RIN) of -135 dB/Hz are achieved. Furthermore, optical data transmission at 12.5 Gb/s is demonstrated where a signal-to-noise ratio (SNR) of 10 dB is measured.

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Source
http://dx.doi.org/10.1364/OE.529952DOI Listing

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