Patent ID: 11953732
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 10:
11. The optical cross-connect according to claim 10, wherein the polarization-dependent optical beam-splitting and switching unit comprises a first optical beam-splitting and switching apparatus and a second optical switching apparatus, the first optical beam-splitting and switching apparatus comprises a first optical beam-splitting submodule, a second optical beam-splitting submodule, a first optical switching submodule, and a second optical switching submodule, and the second optical switching apparatus comprises a third optical switching submodule and a fourth optical switching submodule; wherein
the first optical beam-splitting submodule is configured to: split, into Qi sixth light beams, each third light beam that corresponds to each input port and that is in the set of third light beams; and separately transmit, to the first optical switching submodule, the Qi sixth light beams obtained by splitting each third light beam;
the second optical beam-splitting submodule is configured to: split, into Qi seventh light beams, each fifth light beam that corresponds to each input port and that is in the set of fifth light beams; and separately transmit, to the second optical switching submodule, Qi seventh light beams obtained by splitting each fifth light beam;
the first optical switching submodule is configured to: deflect respectively, based on Qi first deflection angles corresponding to each of the M input ports, direction angles of Qi sixth light beams obtained by splitting a third light beam corresponding to the corresponding input port, so that the Qi sixth light beams that are deflected and that correspond to each of the M input ports are separately output to the third optical switching submodule, wherein Qi first deflection angles corresponding to one input port are in a one-to-one correspondence with the Qi sixth light beams obtained by splitting the third light beam corresponding to the input port;
the second optical switching submodule is configured to deflect respectively, based on Qi second deflection angles corresponding to each of the M input ports, direction angles of Qi seventh light beams obtained by splitting a fifth light beam corresponding to the corresponding input port, so that the Qi seventh light beams that are deflected and that correspond to each of the M input ports are separately output to the fourth optical switching submodule, wherein Qi second deflection angles corresponding to one input port are in a one-to-one correspondence with the Qi seventh light beams obtained by splitting the fifth light beam corresponding to the input port;
the third optical switching submodule is configured to: deflect respectively, based on Qi third deflection angles corresponding to each of the M input ports, direction angles of the received Qi sixth light beams that are deflected and that correspond to each of the M input ports, so that the sixth light beams that are deflected again are separately output to the polarization combining apparatus; and
the fourth optical switching submodule is configured to: deflect, based on Qi fourth deflection angles corresponding to each of the M input ports, direction angles of the received Qi seventh light beams that are deflected and that correspond to each of the M input ports, so that the seventh light beams that are deflected again are separately output to the second polarization conversion apparatus; wherein
for any Nth input port, QN first deflection angles and QN third deflection angles that correspond to the Nth input port are determined based on the Nth group of offset parameters in the optical-path offset parameter set; and
QN second deflection angles and QN fourth deflection angles that correspond to the Nth input port are determined based on the Nth group of offset parameters in the second optical-path offset parameter set.