Single-fiber bidirectional optical module

Abstract

The invention discloses a single-fiber bidirectional optical module which comprises a three-port circulator, an optical fiber interface, a transmitting device and a receiving device, the optical fiber interface is arranged on the three-port circulator, the transmitting device is arranged towards the three-port circulator, and the receiving device is arranged towards the three-port circulator. The transmitting device is arranged towards the three-port circulator so that the three-port circulator can receive the light waves transmitted by the transmitting device, and the receiving device is arranged towards the three-port circulator so that the receiving device can receive the light waves from the three-port circulator.

Description

technical field [0001] The invention relates to the field of optical communication, in particular to a single-fiber bidirectional optical module. Background technique [0002] The existing three-port circulators on the market are generally assembled with magnetic rings. There are assembly gaps between each crystal, the number of parts is large, the assembly process is complicated, and the assembly is difficult. The overall size of this type of design structure is not easy to reduce. It is difficult to adjust the distance between the output end and the input end, errors are prone to occur during the assembly process, the optical path is long, and the optical signal is easy to be lost. In addition, the conventional technology usually adopts components to be bonded to the third carrier platform for optical coupling. There is a gap in the middle of the light-passing component, which has poor stability, affects performance, poor optical signal effect, and high cost. And, the con...

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Problems solved by technology

[0002] The existing three-port circulators on the market are generally assembled with magnetic rings. There are assembly gaps between each crystal, the number of parts is large, the assembly process is complicated, and the assembly is difficult. The overall size of this type of design structure is not easy to reduce. The distance between the output end and the input end is difficult to adjust, errors are prone to occur during the assembly process, the optical path is long, and the optical signal is easy to lose

In addition, the conventional technology usually adopts components to be bonded to the third carrier platform for optical coupling. There is a gap in the middle of the light-passing part, which has poor stability and affects performance. The effect of the optical signal is poor and the cost is high.

And, the conventional WDM wavelength division multiplexing technology BIDI optical module needs to use the wavelength division multiplexing filter, the WDM wavelength division multiplexing technology BIDI optical module must be used in pairs when used, the operation of two WDM duplexers The wavelengths must also be complementary and consistent, which limits the use

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