Spatial and polarization entanglement of lasing patterns and related dynamic behaviors in laser-diode-pumped solid-state lasers.
To provide the underlying physical mechanism for formations of spatial- and polarization-entangled lasing patterns (namely, SPEPs), we performed experiments using a c-cut Nd:GdVO(4) microchip laser with off-axis laser-diode pumping. This extends recent work on entangled lasing pattern generation from an isotropic laser, where such a pattern was explained only in terms of generalized coherent states (GCSs) formed by mathematical manipulation. Here, we show that polarization-resolved transverse patterns can be well explained by the transverse mode-locking of distinct orthogonal linearly polarized Ince-Gauss (IG) mode pairs rather than GCSs. Dynamic properties of SPEPs were experimentally examined in both free-running and modulated conditions to identify long-term correlations of IG mode pairs over time. The complete chaos synchronization among IG mode pairs subjected to external perturbation is also demonstrated.
Otsuka
K
K
Department of Human and Information Science, Tokai University, Hiratsuka, Kanagawa, Japan. ootsuka@keyaki.cc.u-tokai.ac.jp
Chu
S-C
SC
Lin
C-C
CC
Tokunaga
K
K
Ohtomo
T
T
D017076:Computer-Aided Design / Q000295:instrumentation; D004867:Equipment Design / Q000295:instrumentation; D007834:Lasers; D054023:Lasers, Semiconductor; D053844:Lasers, Solid-State; D008027:Light; D017711:Nonlinear Dynamics; D055095:Optics and Photonics; D012031:Refractometry / Q000295:instrumentation