Semiconductor space switches based on multimode interference couplers

It is shown theoretically that selective perturbation by electrorefractive effect of the even-order modes in III-V semiconductor multimode interference couplers gives rise to high-performance optical switching. The calculated performance of the proposed switch is 3.4 GHz/Vmm, compared to 0.85 GHz/Vm...

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Bibliographic Details
Published in:Journal of lightwave technology 2002-04, Vol.20 (4), p.643-650
Main Authors: Earnshaw, M.P., Allsopp, D.W.E.
Format: Article
Language:English
Subjects:
Applied sciences
Circuit properties
Couplers
Electric, optical and optoelectronic circuits
Electronics
Equivalence
Exact sciences and technology
Interference
Mathematical analysis
Miscellaneous
Optical and optoelectronic circuits
Optical crosstalk
Optical devices
Optical interferometry
Optical packet switching
Optical sensors
Optical switches
Optical switching
Perturbation methods
Power semiconductor switches
Quantum well devices
Semiconductors
Switches
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Summary:It is shown theoretically that selective perturbation by electrorefractive effect of the even-order modes in III-V semiconductor multimode interference couplers gives rise to high-performance optical switching. The calculated performance of the proposed switch is 3.4 GHz/Vmm, compared to 0.85 GHz/Vmm for an equivalent Mach-Zehnder interferometer (MZI) switch. The effects of electroabsorption and dimension variations are analyzed to demonstrate the feasibility of the proposed device.
ISSN:0733-8724
1558-2213
DOI:10.1109/50.996585