US 12,445,221 B2
Tunable optical add/drop multiplexer
Kui Ouyang, Wuhan (CN); Tenghao Li, Shenzhen (CN); Luo Han, Dongguan (CN); Xiaoshi Dong, Shenzhen (CN); Fengpei Sun, Shenzhen (CN); and Zhiwu Chang, Shenzhen (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Mar. 24, 2023, as Appl. No. 18/125,930.
Application 18/125,930 is a continuation of application No. PCT/CN2021/111571, filed on Aug. 9, 2021.
Claims priority of application No. 202011027812.7 (CN), filed on Sep. 25, 2020.
Prior Publication US 2023/0231642 A1, Jul. 20, 2023
Int. Cl. H04J 14/02 (2006.01); H04Q 11/00 (2006.01)
CPC H04J 14/0205 (2013.01) [H04J 14/0283 (2013.01); H04J 14/0307 (2023.08); H04Q 2011/003 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A tunable optical add/drop multiplexer (T-OADM), comprising:
a first port configured to input an input beam comprising at least two wavelengths,
a first beam adjustment apparatus configured to adjust a transmission direction of the input beam based on a first signal dropped by the T-OADM, so that the input beam is incident onto a first optical filter at a first incident angle corresponding to a wavelength of the first signal,
the first optical filter configured to:
receive a beam that is incident at the first incident angle, and
split an incident beam into a first transmitted beam and a first reflected beam, wherein a wavelength of a beam comprised in the first transmitted beam is different from a wavelength of a beam comprised in the first reflected beam,
a second beam adjustment apparatus configured to adjust a transmission direction of the first transmitted beam based on the first incident angle,
a second port configured to output the first transmitted beam, and
a third port configured to output the first reflected beam, wherein;
the first beam adjustment apparatus is further configured to adjust a transmission direction of the first reflected beam based on the first incident angle.