학술논문
Experimental Observation of Phase Mode-Locking in Multimode Graded-Index Optical Fiber
Document Type
Conference
Author
Source
2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2023 Conference on. :1-1 Jun, 2023
Subject
Language
ISSN
2833-1052
Abstract
The best-known example of phase locking in multimode optical systems is the laser cavity incorporating an ultrafast saturable absorber [1]. Here, the relative phase between the longitudinal cavity modes turns out to be synchronized in order to form a pulse. This mechanism is based on the presence of dissipation or nonlinear losses. These conditions are far from the case of beam self-cleaning, which occurs in lossless fiber systems [2]. However, in literature there are several example of phase-locking among modes for a purely conservative nonlinear optical system. An example is provided by the interaction among waves with different states of polarization, where phase-locked states emerge as stable attractors [3].