Quasi-phase-matching in GaAs-AlAs superlattice waveguides via bandgap tuning using quantum well intermixing

A Saher Helmy; DC Hutchings; TC Kleckner; JH Marsh; AC Bryce; JM Arnold; CR Stanley; JS Aitchison; Christian Thomas Alcuin Brown; K Moutzouris; Majid Ebrahimzadeh

Quasi-phase-matching in GaAs-AlAs superlattice waveguides via bandgap tuning using quantum well intermixing

A Saher Helmy, DC Hutchings, TC Kleckner, JH Marsh, AC Bryce, JM Arnold, CR Stanley, JS Aitchison, Christian Thomas Alcuin Brown, K Moutzouris, Majid Ebrahimzadeh

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We report the observation of second-harmonic generation by type I quasi phase matching in a GaAs-AlAs superlattice waveguide. Quasi phase matching was achieved through modulation of the nonlinear coefficient chi(alpha y)((2)) which we realized by periodically tuning the superlattice handgap. Second-harmonic generation was demonstrated for fundamental wavelengths from 1480 to 1520 nm, from the third-order gratings with periods from 10.5 to 12.4 mu m. The second-harmonic signal spectra demonstrated narrowing owing to the finite bandwidth of the quasi-phase-matching grating. An average power of similar to 110 nW was obtained for the second harmonic by use of an average launched pump power of less than or equal to 2.3 mW. (C) 2000 Optical Society of America.

Original language	English
Pages (from-to)	1370-1372
Number of pages	3
Journal	Optics Letters
Volume	25
Publication status	Published - 15 Sept 2000

Keywords

WAVE-GUIDES
2ND-HARMONIC GENERATION
2ND-ORDER
NONLINEARITIES

Cite this

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title = "Quasi-phase-matching in GaAs-AlAs superlattice waveguides via bandgap tuning using quantum well intermixing",

abstract = "We report the observation of second-harmonic generation by type I quasi phase matching in a GaAs-AlAs superlattice waveguide. Quasi phase matching was achieved through modulation of the nonlinear coefficient chi(alpha y)((2)) which we realized by periodically tuning the superlattice handgap. Second-harmonic generation was demonstrated for fundamental wavelengths from 1480 to 1520 nm, from the third-order gratings with periods from 10.5 to 12.4 mu m. The second-harmonic signal spectra demonstrated narrowing owing to the finite bandwidth of the quasi-phase-matching grating. An average power of similar to 110 nW was obtained for the second harmonic by use of an average launched pump power of less than or equal to 2.3 mW. (C) 2000 Optical Society of America.",

keywords = "WAVE-GUIDES, 2ND-HARMONIC GENERATION, 2ND-ORDER, NONLINEARITIES",

author = "{Saher Helmy}, A and DC Hutchings and TC Kleckner and JH Marsh and AC Bryce and JM Arnold and CR Stanley and JS Aitchison and Brown, {Christian Thomas Alcuin} and K Moutzouris and Majid Ebrahimzadeh",

year = "2000",

month = sep,

day = "15",

language = "English",

volume = "25",

pages = "1370--1372",

journal = "Optics Letters",

issn = "0146-9592",

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TY - JOUR

T1 - Quasi-phase-matching in GaAs-AlAs superlattice waveguides via bandgap tuning using quantum well intermixing

AU - Saher Helmy, A

AU - Hutchings, DC

AU - Kleckner, TC

AU - Marsh, JH

AU - Bryce, AC

AU - Arnold, JM

AU - Stanley, CR

AU - Aitchison, JS

AU - Brown, Christian Thomas Alcuin

AU - Moutzouris, K

AU - Ebrahimzadeh, Majid

PY - 2000/9/15

Y1 - 2000/9/15

N2 - We report the observation of second-harmonic generation by type I quasi phase matching in a GaAs-AlAs superlattice waveguide. Quasi phase matching was achieved through modulation of the nonlinear coefficient chi(alpha y)((2)) which we realized by periodically tuning the superlattice handgap. Second-harmonic generation was demonstrated for fundamental wavelengths from 1480 to 1520 nm, from the third-order gratings with periods from 10.5 to 12.4 mu m. The second-harmonic signal spectra demonstrated narrowing owing to the finite bandwidth of the quasi-phase-matching grating. An average power of similar to 110 nW was obtained for the second harmonic by use of an average launched pump power of less than or equal to 2.3 mW. (C) 2000 Optical Society of America.

AB - We report the observation of second-harmonic generation by type I quasi phase matching in a GaAs-AlAs superlattice waveguide. Quasi phase matching was achieved through modulation of the nonlinear coefficient chi(alpha y)((2)) which we realized by periodically tuning the superlattice handgap. Second-harmonic generation was demonstrated for fundamental wavelengths from 1480 to 1520 nm, from the third-order gratings with periods from 10.5 to 12.4 mu m. The second-harmonic signal spectra demonstrated narrowing owing to the finite bandwidth of the quasi-phase-matching grating. An average power of similar to 110 nW was obtained for the second harmonic by use of an average launched pump power of less than or equal to 2.3 mW. (C) 2000 Optical Society of America.

KW - WAVE-GUIDES

KW - 2ND-HARMONIC GENERATION

KW - 2ND-ORDER

KW - NONLINEARITIES

UR - http://www.scopus.com/inward/record.url?scp=0001187624&partnerID=8YFLogxK

M3 - Article

SN - 0146-9592

VL - 25

SP - 1370

EP - 1372

JO - Optics Letters

JF - Optics Letters

ER -

Quasi-phase-matching in GaAs-AlAs superlattice waveguides via bandgap tuning using quantum well intermixing

Abstract

Keywords

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