Super-speed photoswitch device

Abstract

The invention applies to the technology field of data exchange of optical network node, and provides a super-speed photoswitch device, which comprises a N route input port, a digit micromirror device DMD, a blazed grating group and a N route output port; the N route input port makes use of generating N route parallel beam and incoming to N lump specific subrange, corresponding to DMD respectively, at preinstall angle to produce diffraction, diffraction-1 class of input beam through the blazed grating group and corresponding diffraction+1 class are transmitted to the preassigned output port of the N route output port; the specific subrange loads with a specific holograph to modulate diffraction+1 class of input beam to the preassigned output port; the blazed grating group is arranged in preinstalled location, diffraction-1 class light beam is coincided with light beam in +1 class direction, the blazed grating group is coupled in the output port. The super-speed photoswitch device can makes an input signal switch to the appointed output port, and diffraction efficiency of photoswitch is promoted.

Description

technical field [0001] The invention belongs to the technical field of optical network node data exchange, and in particular relates to a high-speed optical switch device. Background technique [0002] As one of the core technologies in the all-optical network, optical switching technology is widely used in various switching principles and technologies for realizing optical switching in optical transport networks and data centers. Optical switching technologies with different principles have different characteristics and are suitable for different occasions. The core of optical switching technology is to directly switch signals to different output ports in the optical domain at the nodes of the optical network link, without the process of light to electricity, electricity to light. Among the existing optical switching technologies, the free-space optical switching technology uses the entire optical channel as the switching granularity, which has the advantages of high relia...

AI Technical Summary

Problems solved by technology

Applying a voltage to a properly designed liquid crystal cell can cause the polarization of light passing through the liquid crystal cell to be rotated or not rotated, and then a combination of passive polarization beam splitter and beam combiner can be used to form a polarization-independent optical switch, but its switch Time is still on the order of milliseconds

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