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Adjustment-Free Long-Distributed-Cavity Laser Using Small Glass Ball Cat-Eye Retroreflector | IEEE Journals & Magazine | IEEE Xplore

Adjustment-Free Long-Distributed-Cavity Laser Using Small Glass Ball Cat-Eye Retroreflector


Abstract:

We report an adjustment-free long-distributed-cavity laser using a small high-index glass ball cat-eye retroreflector as the receiver. When the glass ball cat-eye was rot...Show More

Abstract:

We report an adjustment-free long-distributed-cavity laser using a small high-index glass ball cat-eye retroreflector as the receiver. When the glass ball cat-eye was rotated or off-axis moved, its working characteristics were studied via the single cat-eye structure and the double cat-eyes structure. With the single cat-eye structure and an incident pump power of 4.22 W, the end-pumped Nd: YVO _{\mathbf {4}} laser delivered 985 mW continuous-wave output at a working distance of 2.85 m, whose full rotation angle at half power was ±27°. In addition, with the double cat-eyes structure and the same incident pump power, the laser delivered 385 mW output at a working distance of 1.20 m, which had a full rotation angle of ±19° and a transverse displacement tolerance of ±21 mm. As far as we know, this is the first time that a ball-shaped cat-eye retroreflector is used to establish an adjustment-free long-distributed-cavity laser.
Published in: IEEE Photonics Technology Letters ( Volume: 35, Issue: 7, 01 April 2023)
Page(s): 341 - 344
Date of Publication: 08 February 2023

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