Invention Grant
- Patent Title: Free-space multicast switch with elliptical beams
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Application No.: US15383368Application Date: 2016-12-19
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Publication No.: US09883263B2Publication Date: 2018-01-30
- Inventor: Paul Colbourne
- 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: G02B6/26
- IPC: G02B6/26 ; H04Q11/00

Abstract:
A free-space MCS may include an input port to launch a beam of light, N output ports, a beam splitter to split the beam of light into N portions, and a deflector array including N deflectors aligned in an array direction. Each deflector may have an active region with a size in the array direction that matches a size in the array direction of a portion, of the N portions, incident thereon. The free-space MCS may include first beam shaping optics to form a first elliptical beam spot at the beam splitter with a major axis substantially perpendicular to the switching direction, and an angle-to-offset element to direct each of the N portions from the beam splitter to a different deflector of the N deflectors. Each of the N portions may have, at the deflector, a second elliptical beam spot with a major axis substantially parallel to the switching direction.
Public/Granted literature
- US20170099531A1 FREE-SPACE MULTICAST SWITCH WITH ELLIPTICAL BEAMS Public/Granted day:2017-04-06
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