US 11,899,244 B2
Wavelength selective switch
Liu Yang, Wuhan (CN); Rui Yang, Wuhan (CN); Zhilin Yuan, Wuhan (CN); Jinping Guo, Wuhan (CN); Fan Wang, Wuhan (CN); Yuhong Ma, Wuhan (CN); and Yingyi Xuan, Wuhan (CN)
Assigned to Accelink Technologies Co., Ltd., Wuhan (CN)
Appl. No. 17/764,387
Filed by Accelink Technologies Co., Ltd., Wuhan (CN)
PCT Filed Dec. 27, 2019, PCT No. PCT/CN2019/129435
§ 371(c)(1), (2) Date Mar. 28, 2022,
PCT Pub. No. WO2021/017398, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 201910691466.3 (CN), filed on Jul. 29, 2019.
Prior Publication US 2022/0342156 A1, Oct. 27, 2022
Int. Cl. G02B 6/26 (2006.01); G02B 6/35 (2006.01); G02B 6/34 (2006.01)
CPC G02B 6/354 (2013.01) [G02B 6/34 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A wavelength selective switch, comprising an optical fiber array, an optical signal processing device, and an output selection device; wherein
the optical fiber array comprises multiple dual-core optical fibers arranged in parallel, any one of the dual-core optical fibers being used for inputting two optical signals;
the optical signal processing device is located at an output end of the optical fiber array, and is used for dispersing each of the two optical signals into sub-signals with different wavelengths, and projecting the sub-signals with different wavelengths to one of two different spectral band regions in the output selection device, forming two spectral band regions which do not interfere with each other in the output selection device; and
the output selection device is located at a rear end of the optical signal processing device, and is used for processing the sub-signals projected to the spectral band regions, so as to respectively perform output selection on the sub-signals dispersed from the two optical signals, thereby achieving a dual-switch function.