Title:
ARRAYED WAVEGUIDE GRATING HAVING UNIFORM CHANNELS AND SETTING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/035338
Kind Code:
A1
Abstract:
The present invention relates to an arrayed waveguide grating which has uniform channels, comprising an input waveguide end, a free transmission region and output waveguide ends, wherein the input waveguide end is connected to one end of the free transmission region, and the other end of the free transmission region is connected to a plurality of output waveguide ends separately. The arrayed waveguide grating is characterized in that the free transmission region is divided into several regular-shaped cells, and the status of the regular-shaped cells is adjusted according to a DBS imaging algorithm and a preset objective function, so that far-field distributions of the output waveguide end located at the center and the output waveguide end located at the edge are flat-topped. The present invention solves the problem of a 3 dB difference between a maximum insertion loss value and a minimum insertion loss value among output channels of a conventional arrayed waveguide grating.
Inventors:
CHOU CHAO (CN)
HUANG RUI (CN)
HUANG RUI (CN)
Application Number:
PCT/CN2021/120890
Publication Date:
March 16, 2023
Filing Date:
September 27, 2021
Export Citation:
Assignee:
SHANGHAI INST MICROSYSTEM & INFORMATION TECH CAS (CN)
International Classes:
G02B27/00; G02B6/12
Foreign References:
| CN110320663A | 2019-10-11 | |||
| CN102902010A | 2013-01-30 | |||
| CN1464673A | 2003-12-31 | |||
| US6266464B1 | 2001-07-24 | |||
| US9360621B1 | 2016-06-07 |
Other References:
WANG SHUXIN, LANG TINGTING; SONG GUANGYI; HE JIANJUN: "SiON-Based Cyclic Arrayed Waveguide GratingRouters with Improved Loss Uniformity", ACTA OPTICA SINICA, vol. 39, no. 11, 30 November 2019 (2019-11-30), pages 290 - 296, XP093045685, DOI: 10.3788/AOS201939.1123001
Attorney, Agent or Firm:
SHANGHAI TECHNOVO INTELLECTUAL PROPERTY AGENT FIRM (CN)
Download PDF: