Spectral Linewidth Narrowing of two Broad Area Blue Laser Diode (445nm) with a Common External Cavity

Parashu Nyaupane,Patrick L Likamwa,Yehuda Braiman

OPTICS LETTERS（2021）

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摘要

Two high-power, watt-level broad area laser diodes (BALD) were simultaneously locked into a common external cavity made using a surface grating in Littrow configuration and the spectral linewidth of the combined laser beam was narrowed down from over a nm to 15 pm (FWHM).

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关键词

Surface emitting lasers,Lasers and electrooptics,Frequency conversion,Laser excitation,Diode lasers,Laser beams,Gratings

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