Optical signal transmission device and its optical fiber backplane unit

Abstract

The invention relates to an optical signal transmission device and an optical fiber backboard unit thereof. The device comprises a first optical fiber backboard unit and a second optical fiber backboard unit. A first backboard base body of the first optical fiber backboard unit is provided with a first backboard groove which passes through the first backboard base body in the thickness direction of the first backboard base body. A second backboard base body of the second optical fiber backboard unit comprises a second backboard right segment, a second backboard left segment located below the first backboard base body, and a second backboard central segment which is connected between the second backboard left segment and the second backboard right segment. The second backboard left segment passes through the first backboard groove. An incoming line end of a second optical fiber band is located below an incoming line end of a first optical fiber band, and an outgoing line end of the second optical fiber band is located above an outgoing line end of the first optical fiber band. The device provided by the invention can achieve a purpose that optical fibers among optical fiber backboards can be crossed in an up-down direction.

Description

technical field [0001] The invention relates to an optical signal transmission device and an optical fiber backplane unit for optical signal transmission. Background technique [0002] With the continuous development of information technology, optical fiber transmission is used in more and more communication systems. In order to achieve high-density transmission of optical signals, the application of optical fiber ribbons containing multiple optical fibers is born. The traditional optical fiber ribbons are flat ribbons. Form, which consists of 4, 8, 12, 24 or other numbers of bare optical fibers side by side. When used, a special type of connector is made at the input end of the optical fiber and the output end of the optical fiber to transmit optical signals. When this form of optical fiber transmits signals, there is a one-to-one correspondence between the signals at one end and the other end, and the signal cannot be transmitted from one optical fiber ribbon to another op...

AI Technical Summary

Problems solved by technology

When this form of optical fiber transmits signals, there is a one-to-one correspondence between the signals at one end and the other end, and the signal cannot be transmitted from one optical fiber ribbon to another optical fiber ribbon. As the processing capacity of information system data increases, Signal crossing between optical fiber ribbons is inevitable. The existing optical signal transmission device using cross optical fiber ribbons, such as the optical fiber backplane disclosed in US Patent No. 6,744,956, includes a first optical fiber backplane stacked up and down. unit and a second optical fiber backplane unit, the second optical fiber backplane unit includes a first backplane base, the second optical fiber backplane unit includes a second backplane base, and two first optical fiber ribbons are arranged on the first backplane base, Two second optical fiber ribbons are arranged on the base of the second backplane, the fiber inlet ends of the two first optical fiber ribbons are arranged at intervals left and right, the fiber inlet ends of the two second optical fiber ribbons are arranged at intervals left and right, and the two first optical fiber ribbons are arranged at intervals left and right. The fiber inlet end of the ribbon is above the fiber inlet end of the two second fiber ribbons, and the fiber outlet ends of the first and second fiber ribbons are crossed and recombined to form four new fiber ribbons to complete the cross transmission of fiber optic signals , the fiber outlet end of the first fiber ribbon is above the fiber outlet end of the second fiber ribbon

The problem with this existing optical signal transmission device is that the optical fibers between the optical fiber backplane units can only cross in the horizontal direction, but not in the vertical direction. The end is above the fiber inlet end of the second fiber optic ribbon, and the fiber outlet end of the first fiber optic ribbon is above the fiber outlet end of the second fiber optic ribbon. With the rapid development of communication equipment, the application of multi-row high-density fiber optic connectors is becoming more and more When the signals between the rows of multi-row optical fiber connectors are interconnected, this kind of optical signal transmission device cannot solve the problem.

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