Title:
ADJUSTABLE WIDE-SPECTRUM WAVELENGTH-INSENSITIVE DIRECTIONAL COUPLER
Document Type and Number:
WIPO Patent Application WO/2019/034013
Kind Code:
A1
Abstract:
An adjustable wide-spectrum wavelength-insensitive directional coupler, comprising a substrate (100). A first-stage directional coupling structure (1), a phase-shifting structure (2), and a second-stage directional coupling structure (3) are sequentially connected and disposed on the substrate (100). The phase-shifting structure (2) comprises a phase-shifting curved waveguide, a phase-shifting straight waveguide (22), and a third modulation component (26), wherein the third modulation component (26) is disposed on the phase-shifting curved waveguide. One end of the phase-shifting curved waveguide is connected to an output end of a directional coupled waveguide I (16) of the first-stage directional coupling structure (1), and the other end of the phase-shifting curved waveguide is connected to an input end of a directional coupled waveguide III (30) of the second-stage directional coupling structure (3). One end of the phase-shifting straight waveguide (22) is connected to an output end of a directional coupled waveguide II (17) of the first-stage directional coupling structure (1), and the other end of the phase-shifting straight waveguide (22) is connected to an input end of a directional coupled waveguide IV (31) of the second-stage directional coupling structure (3). The adjustable wide-spectrum wavelength-insensitive directional coupler achieves wide-spectrum wavelength-insensitivity, a wide spectrum of splitting-ratio adjustment and low loss, and is of a compact size for easy integration with other devices.
Inventors:
WANG LIANGLIANG (CN)
ZHANG JIASHUN (CN)
AN JUNMING (CN)
YIN XIAOJIE (CN)
LI JIANGUANG (CN)
WANG HONGJIE (CN)
WU YUANDA (CN)
WANG YUE (CN)
HU XIONGWEI (CN)
ZHANG JIASHUN (CN)
AN JUNMING (CN)
YIN XIAOJIE (CN)
LI JIANGUANG (CN)
WANG HONGJIE (CN)
WU YUANDA (CN)
WANG YUE (CN)
HU XIONGWEI (CN)
Application Number:
PCT/CN2018/100205
Publication Date:
February 21, 2019
Filing Date:
August 13, 2018
Export Citation:
Assignee:
HENAN SHIJIA PHOTONS TECH CO LTD (CN)
International Classes:
G02B6/26; G02B6/125
Foreign References:
| CN101779150A | 2010-07-14 | |||
| CN107315224A | 2017-11-03 | |||
| JP2016180867A | 2016-10-13 | |||
| US7027686B1 | 2006-04-11 | |||
| US5499308A | 1996-03-12 |
Other References:
WANG, LIANGLIANG: "Design and fabrication of optical power splitters with large port count", CHINESE OPTICS LETTERS, vol. 12, no. 9, 10 September 2014 (2014-09-10), XP055677622, ISSN: 1671-7694
Attorney, Agent or Firm:
ZHENGZHOU YOUDUN INTELLCTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF:
Previous Patent: LED LAMP HAVING LIGHT GUIDING BODY
Next Patent: METHOD AND APPARATUS FOR ACCESS AUTHENTICATION
Next Patent: METHOD AND APPARATUS FOR ACCESS AUTHENTICATION