Title:
DESIGN METHOD FOR ADIABATIC COUPLING WAVEGUIDE SEGMENT OF ADIABATIC COUPLER AND APPARATUS THEREFOR, AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/037301
Kind Code:
A1
Abstract:
A design method for an adiabatic coupling waveguide segment (200) of an adiabatic coupler and an apparatus therefor, and a device. The design method comprises: acquiring an initial parameter of an adiabatic coupling waveguide segment (200), and determining an initial model of the adiabatic coupling waveguide segment (200) according to the initial parameter, wherein the initial model comprises a first coupling waveguide (210) and a second coupling waveguide (220), and a gap (230) is arranged between the first coupling waveguide (210) and the second coupling waveguide (220) (S100); dividing the adiabatic coupling waveguide segment (200) into N small segments at intervals of an equal gap width, and calculating the coupling efficiency of each waveguide intrinsic mode between cross sections of the adiabatic coupling waveguide segment (200) (S200), wherein N is a positive integer; acquiring a parametric curve, wherein the parametric curve corresponds to the width of the gap which changes along with the length of the adiabatic coupling waveguide segment (200) (S300); acquiring length intervals of the N small segments corresponding to the parametric curve, and by means of combining the length intervals with the coupling efficiency, calculating the transmission efficiency of the current adiabatic coupling waveguide segment (200) (S400); and modifying the shape of the parametric curve, and updating the transmission efficiency of the adiabatic coupling waveguide segment (200) (S500).
Inventors:
YANG MINYUE (CN)
Application Number:
PCT/CN2021/105025
Publication Date:
February 24, 2022
Filing Date:
July 07, 2021
Export Citation:
Assignee:
ZHONGXING PHOTONICS TECH CO LTD (CN)
International Classes:
G06F30/17
Foreign References:
| CN102944913A | 2013-02-27 | |||
| CN107678097A | 2018-02-09 | |||
| CN1837873A | 2006-09-27 | |||
| CN106646739A | 2017-05-10 | |||
| CN110554459A | 2019-12-10 | |||
| US7469084B2 | 2008-12-23 | |||
| CN202010835813A | 2020-08-19 |
Other References:
See also references of EP 4198801A4
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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