Sub-20 kHz low frequency noise near ultraviolet butt-coupled fiber-Bragg grating external cavity laser diode - Archive ouverte HAL
Article Dans Une Revue Applied Physics Letters Année : 2024

Sub-20 kHz low frequency noise near ultraviolet butt-coupled fiber-Bragg grating external cavity laser diode

Résumé

We present a compact InGaN fiber Bragg grating (FBG) semiconductor laser diode operating below 400 nm in the single-mode emission regime. This compact coherent laser source exhibits an intrinsic linewidth of 14 kHz in the near-UV range and a side-mode suppression ratio reaching up to 40 dB accompanied by a mW-level output power. Furthermore, the properties of the FBG, including its central wavelength, bandwidth, and reflectivity, can be readily customized to fulfill specific requirements. As a result, the small footprint design of this laser is compatible with integration into a standard butterfly package to ease the lab-to-market technology transfer. The combination of low frequency noise and fibered output signal positions these FBG laser systems as strong candidates for hybridization with integrated photonic platforms tailored for quantum information processing and metrology.
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Dates et versions

hal-04586504 , version 1 (24-05-2024)
hal-04586504 , version 2 (17-10-2024)

Identifiants

Citer

R Kervazo, A Congar, G Perin, L Lablonde, R Butté, et al.. Sub-20 kHz low frequency noise near ultraviolet butt-coupled fiber-Bragg grating external cavity laser diode. Applied Physics Letters, 2024, 125, pp.161102. ⟨10.1063/5.0235240⟩. ⟨hal-04586504v2⟩
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