WAVELENGTH SELECTION METHOD, AND APPARATUS

• Main Authors: XIANG, Hui, LI, Tenghao
• Format: Patent
• Language: Chinese; English; French
• Published: 10.03.2022
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DISPLAY; EDUCATION; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEALS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

Provided are a wavelength selection method and a communication apparatus, which are applied to fields such as optical communication, optical switching, digital center networks, microwave photonics, liquid crystal antennas, optical phased arrays, beamforming, beam scanning, laser radar, laser projection, laser televisions, holographic displays, adaptive optics, laser beam shaping, laser machining, ultrafast laser pulse shaping, laser active imaging, optical tomographic scanning, and retinal imaging. When a port of a WSS apparatus is switched, only image data of a localized image in an LCOS image that is changed is updated with a time interval shorter than the duration of a frame of image serving as a unit, and driving voltages of pixels on an LCOS display screen are refreshed according to a priority. In comparison with refreshing image data of an entire LCOS image according to a frame frequency and refreshing driving voltages of pixels according to a fixed sequence of pixel numbers, the switching of a port of