GaAs/GaAIAs MULTIQUANTUM WELL WAVEGUIDES FOR ALL-OPTICAL SWITCHING AT 1·55μm

H. K. Tsang; R. S. Grant; R. V. Penty; I. H. White; J. B.D. Soole; E. Colas; H. P. Leblanc; N. C. Andreadakis; M. S. Kim; W. Sibbett

doi:10.1049/el:19911235

GaAs/GaAIAs MULTIQUANTUM WELL WAVEGUIDES FOR ALL-OPTICAL SWITCHING AT 1·55μm

H. K. Tsang, R. S. Grant, R. V. Penty, I. H. White, J. B.D. Soole, E. Colas, H. P. Leblanc, N. C. Andreadakis, M. S. Kim, W. Sibbett

Vice Chancellor's Office

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

Abstract

The first measurements of selfphase modulation and nonlinear absorption in a GaAs/GaAlAs multiquantum well (MQW) waveguide near the halfbandgap resonance are reported. An intensitydependent refractive index coefficient n2 of 9 × 10/W and a twophoton absorption coefficient of 0·15cm/GW at l·55 μm wavelength for TM light were obtained. This corresponds to an intensityindependent figure of merit of 24 rad phase change in one nonlinear absorption length, high enough to allow the implementation of subpicosecond alloptical switches at 1·55μm wavelength.

Original language	English
Pages (from-to)	1993-1995
Number of pages	3
Journal	Electronics Letters
Volume	27
Issue number	22
DOIs	https://doi.org/10.1049/el:19911235
Publication status	Published - 24 Oct 1991

Keywords

Optical switching
Semiconductor devices and materials
Waveguides

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1049/el:19911235

Cite this

@article{3fe654372e1a44949f6ed5e8c5561946,

title = "GaAs/GaAIAs MULTIQUANTUM WELL WAVEGUIDES FOR ALL-OPTICAL SWITCHING AT 1·55μm",

abstract = "The first measurements of selfphase modulation and nonlinear absorption in a GaAs/GaAlAs multiquantum well (MQW) waveguide near the halfbandgap resonance are reported. An intensitydependent refractive index coefficient n2 of 9 × 10/W and a twophoton absorption coefficient of 0·15cm/GW at l·55 μm wavelength for TM light were obtained. This corresponds to an intensityindependent figure of merit of 24 rad phase change in one nonlinear absorption length, high enough to allow the implementation of subpicosecond alloptical switches at 1·55μm wavelength.",

keywords = "Optical switching, Semiconductor devices and materials, Waveguides",

author = "Tsang, {H. K.} and Grant, {R. S.} and Penty, {R. V.} and White, {I. H.} and Soole, {J. B.D.} and E. Colas and Leblanc, {H. P.} and Andreadakis, {N. C.} and Kim, {M. S.} and W. Sibbett",

year = "1991",

month = oct,

day = "24",

doi = "10.1049/el:19911235",

language = "English",

volume = "27",

pages = "1993--1995",

journal = "Electronics Letters",

issn = "0013-5194",

publisher = "Institution of Engineering and Technology",

number = "22",

}

TY - JOUR

T1 - GaAs/GaAIAs MULTIQUANTUM WELL WAVEGUIDES FOR ALL-OPTICAL SWITCHING AT 1·55μm

AU - Tsang, H. K.

AU - Grant, R. S.

AU - Penty, R. V.

AU - White, I. H.

AU - Soole, J. B.D.

AU - Colas, E.

AU - Leblanc, H. P.

AU - Andreadakis, N. C.

AU - Kim, M. S.

AU - Sibbett, W.

PY - 1991/10/24

Y1 - 1991/10/24

N2 - The first measurements of selfphase modulation and nonlinear absorption in a GaAs/GaAlAs multiquantum well (MQW) waveguide near the halfbandgap resonance are reported. An intensitydependent refractive index coefficient n2 of 9 × 10/W and a twophoton absorption coefficient of 0·15cm/GW at l·55 μm wavelength for TM light were obtained. This corresponds to an intensityindependent figure of merit of 24 rad phase change in one nonlinear absorption length, high enough to allow the implementation of subpicosecond alloptical switches at 1·55μm wavelength.

AB - The first measurements of selfphase modulation and nonlinear absorption in a GaAs/GaAlAs multiquantum well (MQW) waveguide near the halfbandgap resonance are reported. An intensitydependent refractive index coefficient n2 of 9 × 10/W and a twophoton absorption coefficient of 0·15cm/GW at l·55 μm wavelength for TM light were obtained. This corresponds to an intensityindependent figure of merit of 24 rad phase change in one nonlinear absorption length, high enough to allow the implementation of subpicosecond alloptical switches at 1·55μm wavelength.

KW - Optical switching

KW - Semiconductor devices and materials

KW - Waveguides

UR - http://www.scopus.com/inward/record.url?scp=0026242698&partnerID=8YFLogxK

U2 - 10.1049/el:19911235

DO - 10.1049/el:19911235

M3 - Article

AN - SCOPUS:0026242698

SN - 0013-5194

VL - 27

SP - 1993

EP - 1995

JO - Electronics Letters

JF - Electronics Letters

IS - 22

ER -

GaAs/GaAIAs MULTIQUANTUM WELL WAVEGUIDES FOR ALL-OPTICAL SWITCHING AT 1·55μm

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this