Affiliation:
1. Chiba University
2. Imperial College London
Abstract
We demonstrate, for the first time to the best of our knowledge, the direct generation of higher-order Laguerre–Gaussian (LG) petal modes, formed of the coherent superposition of positive and negative LG modes with the topological charge of
±
ℓ
as an eigen mode, from a compact diode end-pumped
P
r
3
+
:
L
i
Y
F
4
(YLF) laser with an intra-cavity lens configuration. The on-axis displacement of the intra-cavity lens with spherical aberration allows the selective operation of the desired higher-order LG modes with
|
ℓ
|
≤
31
from the laser cavity at 640 nm and 607 nm. Such visible higher-order LG modes will offer new applications in optical manipulation, quantum/optical underwater telecommunication, and microfabrication.
Funder
JST CREST
KAKENHI Grant-in-Aid for Transformative Research Areas
Japan Society for the Promotion of Science
Subject
Atomic and Molecular Physics, and Optics,Statistical and Nonlinear Physics
Cited by
6 articles.
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