Coherent beam combining of cylindrical vector beams for power scaling.
Opt Lett
; 48(19): 5121-5124, 2023 Oct 01.
Article
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| MEDLINE
| ID: mdl-37773400
ABSTRACT
Coherent beam combining (CBC) of cylindrical vector beams (CVBs) based on an active phase controller is proposed and demonstrated. Experimentally, two pieces of spatially variant wave plates (S-wave plate) were employed as vector mode convertors for two individual 1064-nm fiber amplifier channels. When the system was in a closed loop, a combined output power of 10â
W and a CBC efficiency of higher than 94% were achieved, for both TM01 (radially polarized) mode and TE01 (azimuthally polarized) mode cases. Moreover, the laser system showed a high vector mode purity, which was measured to be â¼97.4% (TM01) and â¼97.3% (TE01). To the best of knowledge, this could possibly be the first demonstration of CBC of CVBs, which paves the way for power scaling of CVBs.
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Opt Lett
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2023
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Article