Title:
OPTICAL SPLITTER, OPTICAL DISTRIBUTION NETWORK, AND METHOD FOR DETERMINING WAVELENGTH CORRESPONDING TO OPTICAL FILTERING STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2022/001229
Kind Code:
A1
Abstract:
Provided in the embodiments of the present invention are an optical splitter, an optical distribution network, and a wavelength determination method. The optical splitter comprises: a light inputting segment, N branch light splitting segments and at least N-1 optical filtering structures. Each of the optical filtering structures reflects an optical signal of a wavelength, the at least N-1 optical filtering structures comprise special optical filtering structures and at least N-3 ordinary optical filtering structures, and the wavelength of an optical signal reflected by each of the at least N-3 ordinary optical filtering structures is an ordinary wavelength, the wavelength of an optical signal reflected by a first special optical filtering structure is a first special wavelength, and the wavelength of an optical signal reflected by a second special optical filtering structure is a second special wavelength, wherein the at least N-3 ordinary wavelengths form an arithmetic progression, the difference between the first special wavelength and the maximum ordinary wavelength is greater than the common difference of the arithmetic progression, and the difference between the second special wavelength and the minimum ordinary wavelength is greater than the common difference of the arithmetic progression. Therefore, wavelength resources are conserved.
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Inventors:
QI BIAO (CN)
ZHANG QI (CN)
DONG ZHENHUA (CN)
ZHANG QI (CN)
DONG ZHENHUA (CN)
Application Number:
PCT/CN2021/082841
Publication Date:
January 06, 2022
Filing Date:
March 24, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04Q11/00
Foreign References:
| CN103002359A | 2013-03-27 | |||
| CN105515767A | 2016-04-20 | |||
| CN111130636A | 2020-05-08 | |||
| CN105093778A | 2015-11-25 | |||
| CN105451840A | 2016-03-30 | |||
| US20190115720A1 | 2019-04-18 | |||
| CN202010621400A | 2020-06-30 |
Other References:
See also references of EP 4164240A4
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