logo
CanyamAI summaries for academic research
language
MobileMobile
  • Phone FeatureWeChat Mini Program
EnglishEnglish
noticeNotice
BlogBlog
delete
arrow
Return

Optimal waveguide dimensions for nonlinear interactions

delete2004-01-01
delete212
delete
OA
AI
M
Mark A. Foster
K
K. D. Moll
A
Alexander L. Gaeta
DOI：10.1364/OPEX.12.002880delete
deleteOriginal
deleteOriginal request for help
deleteShare
deleteSave
Abstract

Abstract

En 中文
We investigate strong light confinement in high core-cladding index contrast waveguides with dimensions comparable to and smaller than the wavelength of incident light. We consider oval and rectangular cross sections and demonstrate that an optimal core size exists that maximizes the effective nonlinearity. We also determine that waveguides with asymmetrical cross sections provide the maximum possible nonlinearity, although only a small improvement over the symmetric case. Furthermore, we find that for a specified waveguide shape the largest nonlinearity occurs for nearly the same core area in all cases. Calculations of the dispersion for the optimal-size waveguide at a particular wavelength indicate that the group-velocity dispersion is normal. Ultimately, such designs could be used to develop low-power all-optical devices and to produce waveguides for ultra-low threshold nonlinear frequency generation such as supercontinuum generation. (C) 2004 Optical Society of America.
Keywords:
SUBWAVELENGTH-DIAMETER SILICA
SUPERCONTINUUM GENERATION
ANOMALOUS-DISPERSION
FIBERS
ENHANCEMENT

Journal

Optics Express cover
Optics Express
IF:
3.3
Papers:
6.1W
Citations:
14.3W

Organization

No organization information available
Cited Papers

Cited Papers

No cited papers available