Multicast optical switch
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United States of America Patent
Stats
-
Jun 30, 2015
Grant Date -
Aug 15, 2013
app pub date -
Jul 26, 2012
filing date -
Jul 28, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A multicast optical switch uses a diffractive bulk optical element, which splits at least one input optical beam into sub-beams, which freely propagate in a medium towards an array of directors, such as MEMS switches, for directing the sub-beams to output ports. Freely propagating optical beams can cross each other without introducing mutual optical loss. The amount of crosstalk is limited by scattering in the optical medium, which can be made virtually non-existent. Therefore, the number of the crossover connections, and consequently the number of inputs and outputs of a multicast optical switch, can be increased substantially without a loss or a crosstalk penalty.
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Cited Art Landscape
Patent Citation Ranking
- 5 Citation Count
- G02B Class
- 11.27 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 30, 2026 |
