Measurements of optical loss in GaAs/A1(2)O(3) nonlinear waveguides in the infrared using femtosecond scattering technique

S V  Rao; K  Moutzouris; M  Ebrahimzadeh; A  De Rossi; G  Gintz; M  Calligaro; V  Ortiz; V  Berger

doi:10.1016/S0030-4018(02)02113-2

Measurements of optical loss in GaAs/A1(2)O(3) nonlinear waveguides in the infrared using femtosecond scattering technique

S V Rao, K Moutzouris, M Ebrahimzadeh, A De Rossi, G Gintz, M Calligaro, V Ortiz, V Berger

School of Physics and Astronomy

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

Abstract

We report measurements of optical loss in GaAs/Al2O3 nonlinear waveguides over the spectral range 1.3-2.1 mum in the infrared using a scattering technique. The optical source was a tunable femtosecond optical parametric oscillator (OPO) generating output pulses with durations of 200-250 fs at a repetition rate of similar to90 MHz and an average power of similar to50 mW. Loss coefficients of similar to1.15-2.55 cm(-1), corresponding to losses of similar to5-11 dB/cm were obtained from the measured data. The loss decreases with increasing wavelength due to the Rayleigh scattering contribution. (C) 2002 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	223-228
Number of pages	6
Journal	Optics Communications
Volume	213
Issue number	4-6
DOIs	https://doi.org/10.1016/S0030-4018(02)02113-2
Publication status	Published - 1 Dec 2002

Keywords

optical loss
scattering technique
semiconductor waveguide
two-photon absorption
nonlinear frequency conversion
GUIDE LOSS-MEASUREMENT
WELL WAVE-GUIDES
REFRACTIVE-INDEX
BAND-GAP
GAAS
ABSORPTION
GENERATION
ALGAAS
HALF

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@article{8a69ff38b4c34e9fa850688e9b83641c,

title = "Measurements of optical loss in GaAs/A1(2)O(3) nonlinear waveguides in the infrared using femtosecond scattering technique",

abstract = "We report measurements of optical loss in GaAs/Al2O3 nonlinear waveguides over the spectral range 1.3-2.1 mum in the infrared using a scattering technique. The optical source was a tunable femtosecond optical parametric oscillator (OPO) generating output pulses with durations of 200-250 fs at a repetition rate of similar to90 MHz and an average power of similar to50 mW. Loss coefficients of similar to1.15-2.55 cm(-1), corresponding to losses of similar to5-11 dB/cm were obtained from the measured data. The loss decreases with increasing wavelength due to the Rayleigh scattering contribution. (C) 2002 Elsevier Science B.V. All rights reserved.",

keywords = "optical loss, scattering technique, semiconductor waveguide, two-photon absorption, nonlinear frequency conversion, GUIDE LOSS-MEASUREMENT, WELL WAVE-GUIDES, REFRACTIVE-INDEX, BAND-GAP, GAAS, ABSORPTION, GENERATION, ALGAAS, HALF",

author = "Rao, \{S V\} and K Moutzouris and M Ebrahimzadeh and \{De Rossi\}, A and G Gintz and M Calligaro and V Ortiz and V Berger",

year = "2002",

month = dec,

day = "1",

doi = "10.1016/S0030-4018(02)02113-2",

language = "English",

volume = "213",

pages = "223--228",

journal = "Optics Communications",

issn = "0030-4018",

publisher = "Elsevier",

number = "4-6",

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TY - JOUR

T1 - Measurements of optical loss in GaAs/A1(2)O(3) nonlinear waveguides in the infrared using femtosecond scattering technique

AU - Rao, S V

AU - Moutzouris, K

AU - Ebrahimzadeh, M

AU - De Rossi, A

AU - Gintz, G

AU - Calligaro, M

AU - Ortiz, V

AU - Berger, V

PY - 2002/12/1

Y1 - 2002/12/1

N2 - We report measurements of optical loss in GaAs/Al2O3 nonlinear waveguides over the spectral range 1.3-2.1 mum in the infrared using a scattering technique. The optical source was a tunable femtosecond optical parametric oscillator (OPO) generating output pulses with durations of 200-250 fs at a repetition rate of similar to90 MHz and an average power of similar to50 mW. Loss coefficients of similar to1.15-2.55 cm(-1), corresponding to losses of similar to5-11 dB/cm were obtained from the measured data. The loss decreases with increasing wavelength due to the Rayleigh scattering contribution. (C) 2002 Elsevier Science B.V. All rights reserved.

AB - We report measurements of optical loss in GaAs/Al2O3 nonlinear waveguides over the spectral range 1.3-2.1 mum in the infrared using a scattering technique. The optical source was a tunable femtosecond optical parametric oscillator (OPO) generating output pulses with durations of 200-250 fs at a repetition rate of similar to90 MHz and an average power of similar to50 mW. Loss coefficients of similar to1.15-2.55 cm(-1), corresponding to losses of similar to5-11 dB/cm were obtained from the measured data. The loss decreases with increasing wavelength due to the Rayleigh scattering contribution. (C) 2002 Elsevier Science B.V. All rights reserved.

KW - optical loss

KW - scattering technique

KW - semiconductor waveguide

KW - two-photon absorption

KW - nonlinear frequency conversion

KW - GUIDE LOSS-MEASUREMENT

KW - WELL WAVE-GUIDES

KW - REFRACTIVE-INDEX

KW - BAND-GAP

KW - GAAS

KW - ABSORPTION

KW - GENERATION

KW - ALGAAS

KW - HALF

UR - https://www.scopus.com/pages/publications/0036895154

U2 - 10.1016/S0030-4018(02)02113-2

DO - 10.1016/S0030-4018(02)02113-2

M3 - Article

SN - 0030-4018

VL - 213

SP - 223

EP - 228

JO - Optics Communications

JF - Optics Communications

IS - 4-6

ER -

Measurements of optical loss in GaAs/A1(2)O(3) nonlinear waveguides in the infrared using femtosecond scattering technique

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Keywords

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