A carrier injection type optical switch in GaAs using free carrier plasma dispersion with wavelength range from 1.06 to 1.55 mu m

The switching current for the device is about 90 mA at all in-range wavelengths. Its broad wavelength range is suitable for optical signal-processing applications in wavelength-division multiplexing transmission systems. High coupling efficiency to a single-mode fiber is achieved by using a small- D...

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Bibliographic Details
Published inIEEE journal of quantum electronics Vol. 25; no. 7; pp. 1677 - 1681
Main Authors Ito, F., Matsuura, M., Tanifuji, T.
Format Journal Article
LanguageEnglish
Published New York, NY IEEE 01.07.1989
Institute of Electrical and Electronics Engineers
Subjects
Applied sciences
Circuit properties
Couplings
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Gallium arsenide
Optical and optoelectronic circuits
Optical fiber devices
Optical refraction
Optical switches
Optical variables control
Optical waveguides
Refractive index
Waveguide transitions
Wavelength division multiplexing
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Summary:The switching current for the device is about 90 mA at all in-range wavelengths. Its broad wavelength range is suitable for optical signal-processing applications in wavelength-division multiplexing transmission systems. High coupling efficiency to a single-mode fiber is achieved by using a small- Delta waveguide structure with carrier blocking layers. The effective refractive index change in the waveguide per unit of the injected current density is doubled by the carrier blocking layers without reducing coupling efficiency.< >
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-9197
1558-1713
DOI:10.1109/3.29311