DIRECTIONAL-COUPLERS BASED ON CASCADED 2ND-ORDER NONLINEARITIES IN SURFACE-EMITTING GEOMETRY

Authors
LEE SJ KHURGIN JB DING YJ
Citation
Sj. Lee et al., DIRECTIONAL-COUPLERS BASED ON CASCADED 2ND-ORDER NONLINEARITIES IN SURFACE-EMITTING GEOMETRY, Optics communications, 139(1-3), 1997, pp. 63-68
Citations number
21
Categorie Soggetti
Optics
Journal title
Optics communications → ACNP
ISSN journal
00304018
Volume
139
Issue
1-3
Year of publication
1997
Pages
63 - 68
Database
ISI
SICI code
0030-4018(1997)139:1-3<63:DBOC2N>2.0.ZU;2-V
Abstract
Potential of using cascaded chi((2)) processes for all-optical switchi ng in nonlinear directional coupler geometry is investigated. Using se cond harmonic field as coupling agent in a symmetric pair of waveguide s is shown to be capable of attaining coupling efficiency in excess of 50%. For the asymmetric pair of waveguides, existence of a coupling t hreshold has been found.