A single-fiber bidirectional optical transceiver component

Abstract

The invention provides a single fiber bi-directional light transmitting-receiving assembly, which comprises a single-mode adapter wrapped by an external support structure, a laser transmitting assembly, a light receiving assembly, a first optical filter and a second optical filter; a central line of the laser transmitting assembly and the central line of a fiber core of the single-mode adapter are on the same optical axis; the laser transmitting assembly and the light receiving assembly are arranged in parallel, and the central optical axis lines of the laser transmitting assembly and the light receiving assembly are on two parallel optical axes; the first optical filter is arranged on the light receiving assembly, and the reflection light of the first optical filter and the central optical axis line of the light receiving assembly are on the same optical axis; the second optical filter is arranged on the laser transmitting assembly and is positioned between the single-mode adapter and the laser transmitting assembly; and the first optical filter is parallel to the second optical filter. According to the optical axes parallel to the laser transmitting assembly, the production assembly of BOB is enabled to be more facilitated, meanwhile the assembly is connected with a mother board through the external support structure, so that backflow welding or wave crest welding is carried out via the method of an SMT (surface mount technology) socket is realized, and the purpose of batched automated production is reached.

Description

technical field [0001] The invention relates to the field of optical communication, in particular to an optical transceiver assembly, which is a single-fiber bidirectional optical transceiver assembly with a single-mode adapter with a collimating lens. Background technique [0002] With the increasing data information, some data show that by 2015, the global bandwidth will increase by 3 times, and the broadband access traffic will increase by about ten times. China, which has a quarter of the world's population, will be the main market for fiber optic broadband access in the future. In recent years, China's optical fiber access market has continued to advance, showing a trend of "light advances copper and retreats". The maturity of EPON / GPON technology and the continuous decline of cost price are more expected to prompt Chinese telecom operators to deploy EPON / GPON and FTTx applications on a large scale. EPON occupies the mainstream of the market due to its high bandwidth,...

AI Technical Summary

Problems solved by technology

[0005] like figure 1 As shown, the current transceiver integrated optical component has an asymmetric structure for its transmitting end and receiving end, and the transmitting signal pin 7 and the receiving signal pin 8 are respectively located on both sides of the transmitting and receiving integrated optical component. Therefore, during the production process of the BOB solution, in the When the transceiver integrated optical component is mounted on the motherboard, the pins of the transmitting end must be bent to the side of the receiving component, and then connected to the motherboard. It is difficult to control the consistency of the bending length and bending radius of the optical transmitting component in the production process. And because it needs to be bent, the transmitter must keep a long piece of pin exposed outside the motherboard, which will increase the circuit impedance and increase the signal noise, which is not conducive to the processing of high-speed signals

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