Rack mount multi-channel optical switch based on fpga

Abstract

The invention discloses a rack-mounted multi-channel optical switch based on FPGA, belonging to the technical field of optical fiber communication testing. The rack-mounted multi-channel optical switch based on the FPGA uses FPGA as a control core, internally integrates a fiber channel switching module, adopts a rack-mounted structure design, and uses a RS-485 or an Ethernet connection to realizethe switching of fiber channels through computer control. As the control core of the rack-mounted multi-channel optical switch, the FPGA realizes three main functional modules: a communication controlmodule, a digital control module and a display module. The communication control module realizes communication between a device and a PC, and the PC can send or read back channel switching information to the device through the RS-485 or the Ethernet connection; the digital control module implements channel setting for the fiber switching module; and the display module displays the switching stateof the current optical switch on a front panel LCD. The rack-mounted multi-channel optical switch based on the FPGA solves the problem of multi-channel 48x1 fiber channel switching in the case of meeting a low insertion loss, and achieves the effect of low loss optical channel switching and remote control integration.

Description

Technical field[0001]The FPGA-based frame multi-channel optical switch is a fiber optic communication test technology.Background technique[0002]The optical switches of various exchange principles and implementation techniques in the optical transfer network are widely proposed. The optical switches of different principles and technologies have different characteristics, suitable for different occasions. According to different optical switch principles, the optical switch can be divided into: a mechanical optical switch, magneto-optical switch, a hot optical switch, an electro-optical switch, and an acoustic switch. According to the exchange medium of the optical switch, the optical switch can be divided into: free space exchange optical switch and waveguide exchange optical switch.[0003]Multi-channel switch module is an electronic functional device with switching optical paths. In the fiber-optic transmission system, it is used for multi-channel light monitoring, Ethernet, multi-lig...

AI Technical Summary

Problems solved by technology

However, the existing multi-channel optical switches have defects and deficiencies in varying degrees. Imported products have fewer channels and are expensive, and the cost of system expansion is high.

At present, there are some similar products in China, but there are disadvantages such as large insertion loss and lack of remote control function.

Images