Journal ArticleDOI
Optical switch for multimode optical-fiber systems.
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TLDR
A new type of optical switch is constructed of graded-index rod lenses operated mechanically by small electromagnets and has many outstanding features, such as low insertion loss, low crosstalk, and small size.Abstract:
A new type of optical switch is constructed of graded-index rod lenses. It is operated mechanically by small electromagnets. This switch is compatible with practical multimode-fiber communication systems. It has many outstanding features, such as low insertion loss (1.3–1.4 dB), low crosstalk ( 2 × 106 times), and small size (40 × 50 × 25 mm3).read more
Citations
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Journal ArticleDOI
Applications of GRIN-rod lenses in optical fiber communication systems.
TL;DR: In this article, the authors present a detailed review of the performance of various GRIN-rod lens devices, including connectors, attenuators, directional couplers, switches, isolators and wavelength division multiplexers.
Patent
Optical switching device
TL;DR: In this paper, the end faces of two or more optical waveguides (23 to 29) are connected on one end face of a focussing rod lens (20) and a reflection means (21) having a reflection plane tilted with a specified angle (α) to the normal plane to the lens axis is disposed behind the other end face.
Patent
Mechanical optical switching device
TL;DR: In this paper, a movable first optical path-changing means (8) and a fixed second and fixed third optical path changing means (12 and 13) associated to the first and second output optical fiber are provided.
Journal ArticleDOI
Electrically controlled optical switch for multimode fiber applications
Richard E. Wagner,J. Cheng +1 more
TL;DR: An electrically controlled optical switch based on polarization principles is described, which uses a liquid crystal twist cell that rotates polarization by 90 degrees, and it operates on an ac voltage that switches between 0.8 and 2.5 V rms.
Journal ArticleDOI
Electrowetting optical switch
TL;DR: In this paper, continuous electrowetting and refractive index matching have been used as the physical basis of an optical switch for multimode fibers, which has low cross talk (∼−30 dB), fast response times and low operating voltage.
References
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Journal ArticleDOI
Mechanical optical-fibre switch
P.G. Hale,R. Kompfner +1 more
TL;DR: In this paper, an optical-fibre switch is described which depends on transverse mechanical motion of found fibres within a square-bore tube and the theoretical loss of the switch, when closed, can be as low as 0.05 dB and many tens of decibels when open.