Article Dans Une Revue Optics Express Année : 2025

Narrow linewidth III-V-on-SiN laser with extended frequency chirp capability based on micro-transfer printing for high resolution distributed acoustic sensing

J. Zhang
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  • PersonId : 1095759
J. Song
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  • PersonId : 1283922

Résumé

A laser source that is both narrow-linewidth and frequency-agile is essential for FMCW applications, such as LIDAR or distributed optical fiber sensing (DOFS). In this work, we present the design and characterization of a laser architecture based on the heterogeneous integration of III-V gain material on a SiN photonic circuit that meets these specifications. By incorporating a dual-ring resonator mirror in the cavity, we achieved a linewidth of 2.4 kHz and a large frequency excursion. We obtained chirps with an amplitude of 20 GHz, with residual nonlinearities of less than 1%. A preliminary DOFS measurement was carried out, demonstrating the excellent performance of the laser. (c) 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

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hal-05105369 , version 1 (09-10-2025)

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G. Dande, J. Pennanech, C. Charliac, V. Kemlin, V. Crozatier, et al.. Narrow linewidth III-V-on-SiN laser with extended frequency chirp capability based on micro-transfer printing for high resolution distributed acoustic sensing. Optics Express, 2025, 33 (8), pp.17192-17202. ⟨10.1364/OE.529238⟩. ⟨hal-05105369⟩
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