The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 18, 2023

Filed:

Apr. 15, 2020
Applicant:

Google Llc, Mountain View, CA (US);

Inventors:

Jill Berger, Saratoga, CA (US);

Kevin Yasumura, Lafayette, CA (US);

Steven M. Swain, San Jose, CA (US);

Assignee:

Google LLC, Mountain View, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/35 (2006.01); G02B 6/32 (2006.01); G02B 6/36 (2006.01);
U.S. Cl.
CPC ...
G02B 6/3518 (2013.01); G02B 6/322 (2013.01); G02B 6/3556 (2013.01); G02B 6/3584 (2013.01); G02B 6/3644 (2013.01); G02B 6/3688 (2013.01);
Abstract

An optical circuit switch including a two-dimensional fiber collimator includes a hole plate to hold and align a plurality of optical fibers. Fiber pathways within the hole plate can be formed using a femtosecond laser irradiation chemical etching (FLICE) technique. The use of the FLICE technique allows for extremely precise channels to be formed which allows for fibers to be aligned more closely with their intended alignment. The technique also allows for the channels or fiber pathways to be formed in a thicker material, which allows for greater structural support and robustness of the fiber collimator in use.


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