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:
Dec. 10, 2024

Filed:

Jul. 12, 2021
Applicant:

Acacia Communications, Inc., Maynard, MA (US);

Inventors:

Li Chen, Maynard, MA (US);

Long Chen, Maynard, MA (US);

Christopher Doerr, Maynard, MA (US);

Assignee:

CISCO TECHNOLOGY, INC., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/132 (2006.01); G02B 6/122 (2006.01); G02B 6/136 (2006.01);
U.S. Cl.
CPC ...
G02B 6/132 (2013.01); G02B 6/122 (2013.01); G02B 6/136 (2013.01);
Abstract

In part, in one aspect, the disclosure relates to a method for passivating a waveguide of an optical circuit. The method includes etching a suspended waveguide in the optical circuit; the suspended waveguide having a top surface, a bottom surface, and side surfaces; and covering the top surface and side surfaces of the suspended waveguide with a passivation coating having a thickness that ranges from between about 10 nm to about 20 nm. In one embodiment, the method further includes removing one or more coatings from a portion of the optical circuit. The disclosure also relates to various passivated optical silicon circuit embodiments.


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