Title:
OPTICAL MODULE
Document Type and Number:
WIPO Patent Application WO/2022/007428
Kind Code:
A1
Abstract:
An optical module (200), comprising a circuit board (105), a light source (500), and a photonic integrated chip (400). A power divider on the photonic integrated chip (400) comprises a substrate (403) and a dual-core waveguide. The dual-core waveguide comprises an input section waveguide and a power division section waveguide which are integrally connected to each other. The distance between first and second waveguides of the input section waveguide is gradually decreased in the light propagation direction to evolve the first and second waveguides from a single mode into a dual-core waveguide mode. The widths of the first and second waveguides are different, and gradually narrow in the light propagation direction until the widths of the first and second waveguides are identical, so that the power of light on the first and second waveguides is identical. The distance between first and second waveguides of the power division section waveguide is gradually increased in the light propagation direction to divide the input light into two lights having the same power, and lights respectively output by the first and second waveguides have specific phases. By optimizing the design of the width and length of the dual-core waveguide, the optical signal splitting in a wide spectral band is realized, and output optical signals have a specific phase relation.
Inventors:
YIN YANLONG (CN)
CHEN SITAO (CN)
SUI SHAOSHUAI (CN)
ZHAO QISHENG (CN)
CHEN SITAO (CN)
SUI SHAOSHUAI (CN)
ZHAO QISHENG (CN)
Application Number:
PCT/CN2021/080817
Publication Date:
January 13, 2022
Filing Date:
March 15, 2021
Export Citation:
Assignee:
HISENSE BROADBAND MULTIMEDIA TECHNOLOGY CO LTD (CN)
International Classes:
G02B6/12; G02B6/14; G02B6/26
Foreign References:
| US20180102847A1 | 2018-04-12 | |||
| JPH09178967A | 1997-07-11 | |||
| CN1361874A | 2002-07-31 | |||
| CN108594364A | 2018-09-28 | |||
| CN1952708A | 2007-04-25 | |||
| US9547127B1 | 2017-01-17 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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