POLARIZATION INSENSITIVE OPTICAL PHASED ARRAY AND ASSOCIATED METHOD

Title:

POLARIZATION INSENSITIVE OPTICAL PHASED ARRAY AND ASSOCIATED METHOD

Document Type and Number:

WIPO Patent Application WO/2019/114457

Kind Code:

A1

Abstract:

A polarization insensitive optical phased array (200) is provided, for LIDAR or other purposes. A polarization rotator splitter (310) or two-dimensional grating coupler (410) provides two components of co-polarized light. Each component can be routed to a separate optical phased array (OPA) component (235,240), and light output (380,390) of one of the OPA components (235,240) is rotated in polarization by use of a half wave plate (245). A polarization controller (907) can receive and control the two components of co-polarized light and then passes the controlled light to the two OPA components (235,240). A single OPA component (550) can also be used along with a controller (520) which combines the two components (535,540) of co-polarized light into a single output (680), passed to the single OPA component (550).

Inventors:

ZHANG CHUNSHU (CA)
BERNIER ERIC (CA)
GOODWILL DOMINIC JOHN (CA)

Application Number:

PCT/CN2018/113762

Publication Date:

June 20, 2019

Filing Date:

November 02, 2018

Export Citation:

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Assignee:

HUAWEI TECH CO LTD (CN)

International Classes:

G01S17/10; G02B6/26

Foreign References:

US20170299697A1	2017-10-19
JP2017187649A	2017-10-12
CN104459881A	2015-03-25
CN105026970A	2015-11-04
CN101216578A	2008-07-09

Other References: