eprintid: 1443006
rev_number: 31
eprint_status: archive
userid: 608
dir: disk0/01/44/30/06
datestamp: 2014-08-24 18:33:24
lastmod: 2024-06-18 10:44:18
status_changed: 2015-12-08 16:32:49
type: article
metadata_visibility: show
item_issues_count: 0
creators_name: Lavdas, S
creators_name: Zhao, S
creators_name: Panoiu, NC
creators_name: Driscoll, JB
creators_name: Grote, RR
creators_name: Osgood, RM
title: Wavelength conversion and parametric amplification of optical pulses via quasi-phase-matched four-wave mixing in long-period Bragg silicon waveguides
ispublished: pub
divisions: UCL
divisions: A01
divisions: B04
divisions: C05
divisions: F46
keywords: Wavelength conversion devices; Nonlinear optical devices; 
Waveguides, channeled;  Nonlinear optics, four-wave mixing; (190.4975) Parametric processes; Nonlinear optics, integrated optics.
note: This version is the author-accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: We present a theoretical analysis supported by comprehensive numerical simulations of quasi-phase-matched fourwave mixing (FWM) of ultrashort optical pulses that propagate in weakly width-modulated silicon photonic nanowire gratings. Our study reveals that, by properly designing the optical waveguide such that the interacting pulses copropagate with the same group velocity, a conversion efficiency enhancement of more than 15 dB, as compared to a uniform waveguide, can readily be achieved. We also analyze the dependence of the conversion efficiency and FWM gain on the pulse width, time delay, walk-off parameter, and grating modulation depth. © 2014 Optical Society of America.
date: 2014-07-01
official_url: https://doi.org/10.1364/OL.39.004017
vfaculties: VENG
oa_status: green
full_text_type: other
primo: open
primo_central: open_green
verified: verified_manual
elements_source: Scopus
elements_id: 949420
doi: 10.1364/OL.39.004017
lyricists_name: Panoiu, Nicolae-Coriolan
lyricists_id: NPANO59
full_text_status: public
publication: Optics Letters
volume: 39
number: 13
pagerange: 4017 - 4020
issn: 0146-9592
citation:        Lavdas, S;    Zhao, S;    Panoiu, NC;    Driscoll, JB;    Grote, RR;    Osgood, RM;      (2014)    Wavelength conversion and parametric amplification of optical pulses via quasi-phase-matched four-wave mixing in long-period Bragg silicon waveguides.                   Optics Letters , 39  (13)   4017 - 4020.    10.1364/OL.39.004017 <https://doi.org/10.1364/OL.39.004017>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1443006/1/Panoiu_1405.7434v1.pdf