Self-aligned packaging of an 8/spl times/8 InGaAsP-InP space switch

By using an efficient and alignment tolerant fiber-chip coupling technology we can realize semiconductor space switches with a new and highly promising modular architecture. We present a completely packaged 8/spl times/8 matrix switch based on InGaAsP-InP intended for routing applications around wav...

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Bibliographic Details
Published in:IEEE journal of selected topics in quantum electronics 1997-12, Vol.3 (6), p.1445-1456
Main Authors: Wenger, G., Schienle, M., Bellermann, J., Acklin, B., Muller, J., Eichinger, S., Muller, G.
Format: Article
Language:English
Subjects:
Integrated optics
Optical coupling
Optical crosstalk
Optical fiber losses
Optical interconnections
Optical switches
Semiconductor device packaging
Space technology
Transformers
Wavelength routing
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Summary:By using an efficient and alignment tolerant fiber-chip coupling technology we can realize semiconductor space switches with a new and highly promising modular architecture. We present a completely packaged 8/spl times/8 matrix switch based on InGaAsP-InP intended for routing applications around wavelength 1.55 /spl mu/m. The matrix is composed of sixteen 1/spl times/8 InGaAsP-InP switches that are optically interconnected by a shuffle comprising 64 single-mode fibers (SMFs). All the fiber ports of the InGaAsP-InP chips are provided with monolithically integrated optical spot-size transformers (MOSTs) that allow simple yet highly efficient self-aligned multifiber coupling. The 8/spl times/8 matrix shows a fiber-matrix-fiber insertion losses of 20 dB and a crosstalk suppressions of 28 dB. An extension of the matrix architecture to a 64/spl times/64 switch seems straightforward.
ISSN:1077-260X
1558-4542
DOI:10.1109/2944.658800