Single-ended bidirectional optical fiber transmission channel

Abstract

The invention discloses a single-ended bidirectional optical fiber transmission channel. The single-ended bidirectional optical fiber transmission channel comprises interfaces respectively located at the two sides, and a first transmission channel and a second transmission channel connected with the two interfaces; the first transmission channel and the second transmission channel both include an optical receiver and an optical emitter; the single-ended bidirectional optical fiber transmission channel is characterized by comprising at least one switch control module; the switch control module comprises a monitoring unit, a control unit and a latch unit; the switch control module is connected with the optical receiver and the optical emitter which are located at the same side of one interface; the monitoring unit is used for acquiring input signals of the optical receiver and the optical emitter which are located at the same side; according to the first arriving situation of the input signals of the optical receiver and the optical emitter acquired by the monitoring unit, the control unit cuts off another electrical path according to the condition that one of the input signals arrives firstly; and the latch unit latches the above state of the optical receiver and the optical emitter, and then relieves the latch state and back to the initial state after signal transmission is completed. The single-ended bidirectional optical fiber transmission channel provided by the invention greatly reduces the loss in the process of signal transmission.

Description

technical field [0001] The invention relates to the technical field of optical fiber transmission. Background technique [0002] see figure 1 , because metal wires such as copper wires cannot be used to realize long-distance transmission of high-speed signals, optical fibers are often used instead of metal wires. For interfaces that require single-channel bidirectional transmission, the transmission scheme in the above figure is often an alternative. Obviously, since it is the same channel and there is a loop path structure in the above figure, it is likely to cause repeated transmission of signals. For example, if a signal is transmitted from the left side to the right side, due to the existence of this loop structure, the right side is likely to receive this signal continuously. For the continuous transmission of multiple signals, the signals at different time points are likely to be superimposed together, resulting in channel blockage. Contents of the invention [00...

AI Technical Summary

Problems solved by technology

For the case of continuous transmission of multiple signals, signals at different time points are likely to be superimposed together, resulting in channel blockage

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