Single-wavelength and single-fiber bidirectional light transceiving module assembly

Abstract

The invention relates to a single-wavelength and single-fiber bidirectional light transceiving module assembly, which comprises a transmitting terminal, a receiving terminal, a common terminal and an optical lens group, wherein the optical lens group comprises a first polarization optical splitter, a second polarization optical splitter, a third polarization optical splitter, a reflecting mirror, a 45-degree half-wave plate, a magnetic ring, a magnetic rotation sheet and a 22.5-degree half-wave plate; a polarization beam at the transmitting terminal passes through the first polarization optical splitter, the magnetic rotation sheet, the 22.5-degree half-wave plate and the second polarization optical splitter, and then is received by the common terminal; polarized light which is incident to the common terminal in the parallel direction passes through the second polarization optical splitter, the magnetic rotation sheet, the 22.5-degree half-wave plate, the first polarization optical splitter, the 45-degree half-wave plate and the third polarization optical splitter and then is received by the receiving terminal; and polarized light in the vertical direction passes through the second polarization optical splitter, the reflecting mirror and the third polarization optical splitter and then is received by the receiving terminal. The single-wavelength and single-fiber bidirectional light transceiving module assembly meets national and international standards completely in the aspect of main performance of light power, isolation, receiving sensitivity and the like, and is compatible with the conventional standard module completely in appearance.

Description

technical field [0001] The invention relates to an optical transceiver module assembly in the technical field of optical fiber communication, in particular to a single-wavelength single-fiber bidirectional optical transceiver module assembly. Background technique [0002] With the application of optical fiber network becoming more and more popular, especially the gradual implementation of fiber access FTTH (Fiber To The Home) projects around the world, as well as point-to-point data transmission, the demand for single-fiber bidirectional components in the market is also increasing. The single-fiber bidirectional components currently on the market are all dual-wavelength, that is, the transmitted and received optical signals are light of different wavelengths. If the two-way transmission of optical signals is realized through an optical fiber, two different module components are required to cooperate, such as figure 1 As shown, one of the modules uses wavelength 1 to transmi...

AI Technical Summary

Problems solved by technology

Since the first filter 11 can only realize the transmission and reflection of different wavelengths, and the transmitting and receiving ends use light of different wavelengths, the optical transceiver module assembly of this structure can only be dual-wavelength

Images