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.
Patent No.:
Date of Patent:
Jul. 29, 2025
Filed:
Aug. 20, 2021
Apple Inc., Cupertino, CA (US);
Yi-Kuei Wu, San Jose, CA (US);
APPLE INC., Cupertino, CA (US);
Abstract
Configurations for a one by four light splitting device are disclosed. The light splitting device may include a primary waveguide, a first coupling waveguide, and a second coupling waveguide. The primary waveguide may couple light from the primary waveguide into both the first and second coupling waveguides. Due to the manipulation of the coupling modes, a fundamental mode of light may be input and four fundamental modes of light may be output. In some examples, the primary waveguide may input a fundamental mode of light that may be converted into a first hybrid mode, which may be a four lobe mode. The first and second coupling waveguides may be tapered and separated by a gap such that the first hybrid mode may be converted into two second hybrid modes, which may then be converted back into four fundamental modes of output light.