Invention Grant
- Patent Title: Multicast optical switch
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Application No.: US14733378Application Date: 2015-06-08
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Publication No.: US09250391B2Publication Date: 2016-02-02
- Inventor: Sheldon McLaughlin , Peter David Roorda , Paul Colbourne , Barrie Keyworth
- Applicant: Lumentum Operations LLC
- Applicant Address: US CA Milpitas
- Assignee: Lumentum Operations LLC
- Current Assignee: Lumentum Operations LLC
- Current Assignee Address: US CA Milpitas
- Agency: Harrity & Harrity, LLP
- Main IPC: G02B6/35
- IPC: G02B6/35 ; G02B26/08 ; G02B27/10

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.
Public/Granted literature
- US20150293307A1 MULTICAST OPTICAL SWITCH Public/Granted day:2015-10-15
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