Title:
ZERO OPTICAL PATH DIFFERENCE PHASED ARRAY
Document Type and Number:
WIPO Patent Application WO/2016/190932
Kind Code:
A3
Abstract:
A zero-optical-path-length-difference optical phased array built with essentially planar photonic devices determines a direction to an incoherent optical source, such as a star. The phased array can replace a 3-dimensional star tracker with a nearly 2-dimensional system that is smaller and lighter. The zero-optical-path-length-difference phased array can be optically connected to an interferometer. Driven by a light source, the zero-optical-path-length-difference phased array can be used as an optical projector.
Inventors:
LANE BENJAMIN F (US)
SPECTOR STEVEN J (US)
SPECTOR STEVEN J (US)
Application Number:
PCT/US2016/019244
Publication Date:
March 16, 2017
Filing Date:
February 24, 2016
Export Citation:
Assignee:
CHARLES STARK DRAPER LABORATORY INC (US)
International Classes:
G01C21/02; G02F1/01; G02F1/21; H01Q3/24
Foreign References:
| US20150002854A1 | 2015-01-01 | |||
| US20040156591A1 | 2004-08-12 | |||
| US8270067B1 | 2012-09-18 | |||
| US4515430A | 1985-05-07 | |||
| US5061048A | 1991-10-29 | |||
| US20070229381A1 | 2007-10-04 | |||
| US20140192394A1 | 2014-07-10 | |||
| US20150346340A1 | 2015-12-03 | |||
| US20100302548A1 | 2010-12-02 |
Other References:
See also references of EP 3262376A4
Attorney, Agent or Firm:
JAKOBSCHE, George J. et al. (US)
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