16-channel integrated multi-wavelength DFB lasers with 200 GHz channel spacing

Xiaoxi Wang; Ranjeet Kumar; Duanni Huang; Guan-Lin Su; Xinru Wu; Songtao Liu; Haisheng Rong

doi:10.1117/12.3023430

13 March 2024 16-channel integrated multi-wavelength DFB lasers with 200 GHz channel spacing

Xiaoxi Wang, Ranjeet Kumar, Duanni Huang, Guan-Lin Su, Xinru Wu, Songtao Liu, Haisheng Rong

Author Affiliations +

Proceedings Volume 12905, Novel In-Plane Semiconductor Lasers XXIII; 129050J (2024) https://doi.org/10.1117/12.3023430
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

Multi-wavelength laser sources on silicon photonics can enable large spectral coverage for DWDM optical I/O links and leverage the scalability of a CMOS compatible process simultaneously. In this work, we report a laser array of four four-wavelength distributed feedback lasers that produce in total sixteen wavelength channels simultaneously with a wavelength spacing of 200 GHz and output power of 17 dBm per laser. We show integrated III-V/Si hybrid lasers on the same die with wafer-level bonded epitaxial III-V layer that spans a spectral coverage of 17 nm through the 16 wavelength channels. We also measured the relative intensity noise (RIN) of all sixteen wavelength channels to be under -135 dB/Hz and the Lorentzian linewidth to be less than 300 kHz.

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(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xiaoxi Wang, Ranjeet Kumar, Duanni Huang, Guan-Lin Su, Xinru Wu, Songtao Liu, and Haisheng Rong "16-channel integrated multi-wavelength DFB lasers with 200 GHz channel spacing", Proc. SPIE 12905, Novel In-Plane Semiconductor Lasers XXIII, 129050J (13 March 2024); https://doi.org/10.1117/12.3023430

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KEYWORDS

Relative intensity noise

Silicon photonics

Laser sources

Dense wavelength division multiplexing

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