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:
Dec. 21, 2021
Filed:
Jul. 19, 2017
Inlc Technology Co., Ltd., Daejeon, KR;
INLC TECHNOLOGY CO., LTD., Daejeon, KR;
Abstract
Disclosed is an invention related to a wavelength selective switch for multiple units. The wavelength selective switch for multiple units according to the present invention comprises: multiple input/output port groups comprising multiple input/output port arrays for transmitting multiple light beams comprising multiple wavelength channels, respectively; a switching lens portion configured such that light beams output from respective input/output ports intersect on a switching axis; a first prism portion arranged between the multiple input/output port arrays and the switching lens portion and configured such that respective light beams groups output from the multiple input/output port arrays refract at different angles on the switching axis; a second prism portion arranged after the switching lens portion and configured such that a center line of a light beam group output from the switching lens portion is arranged in parallel with an optical axis; a light expansion portion for expanding the beam size of a light beam output from the second prism portion in a dispersion axis direction; a light splitting portion for splitting the light beam, the beam size of which has been expanded by the light expansion portion, at a different angle on the dispersion axis according to the wavelength component; an image lens portion for readjusting and focusing wavelengths split by the light splitting portion; and a switching portion comprising divided surfaces corresponding to the multiple input/output port groups, the switching portion being configured to change the angle of a selected wavelength on the switching axis such that a wavelength channels of an input port selected independently with regard to each group is transmitted to an output port selected independently.