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:
Feb. 25, 2025
Filed:
Nov. 11, 2020
Beijing Voyager Technology Co., Ltd., Beijing, CN;
Yue Lu, Mountain View, CA (US);
Youmin Wang, Mountain View, CA (US);
Beijing Voyager Technology Co., Ltd., Beijing, CN;
Abstract
A MEMS-based Wavelength Selectable Switch (WSS), used classically for demultiplexing fiber optic communications, is re-purposed to act as a filter. A light emitter provides a light beam with its wavelength detected by a wavelength detector. A light condenser directs reflected light from the light emitter to an input of the WSS. The WSS is controllable to provide a selected wavelength band to a selected output of the WSS, where it is detected by a photodetector. Other wavelengths are discarded by the WSS at other outputs. A controller is configured to control the WSS to select the selected wavelength band based on a detected wavelength from the wavelength detector.