CN205787255U

CN205787255U - A kind of optical transceiver module of multichannel uplink receiving

Info

Publication number: CN205787255U
Application number: CN201620501596.8U
Authority: CN
Inventors: 郑新源
Original assignee: Zhejiang University of Media and Communications
Current assignee: Zhejiang University of Media and Communications
Priority date: 2016-05-27
Filing date: 2016-05-27
Publication date: 2016-12-07
Anticipated expiration: 2026-05-27

Abstract

This utility model relates to the optical transceiver module of a kind of multichannel uplink receiving, including duplexer module, descending amplification module, light emission module, Optical Receivers, radio frequency mixing module and up amplification module；Described duplexer module connects with descending amplification module, up amplification module respectively；Described descending amplification module is connected with light emission module, and described up amplification module is connected with radio frequency mixing module, and described radio frequency mixing module is connected with some Optical Receivers；The beneficial effects of the utility model are mainly manifested in: use the optical transceiver module of multichannel uplink receiving, original radio frequency transmission is upgraded to optical transport, extends transmission distance, up to 20 kilometers；Employing uplink multi-path receives, original light station one_to_one corresponding with network, need not change original light station and achieve that the network architecture of a C DOCSIS multiple luminous point of local side band, save network rebuilding cost.

Description

A kind of optical transceiver module of multichannel uplink receiving

Technical field

This utility model belongs to technical field of photo communication, especially relates to the optical transceiver module of a kind of multichannel uplink receiving.

Background technology

The canonical topology of cable television access network is luminous point band 50 family user, and passive coaxial distribution net is registered one's residence, and has both eliminated the active equipments such as radio frequency amplifier, has remained again the access advantage coaxially registered one's residence.The C-DOCSIS bidirectional network reconstruction technology that industry is praised highly at present, is placed on C-DOCSIS local side at luminous point and uses.But because it is powerful, cost is high, and cost is 5～10 times of common EOC local side.Under the scene at one luminous point band 50 family, cost is the highest per family, limits the application of C-DOCSIS technology.C-DOCSIS is mentioned sub-headend, carries multiple luminous point, to share cost per family, be a feasible scheme.But the fibre transmission portions in broadcasting and TV access network at present, descending employing optical branching device realizes the network architecture of point-to-multipoint, the point-to-point network architecture of up employing；How to dock this asymmetric up-downgoing optical networking architectures, be our urgent problem.

For above-mentioned technical problem, therefore need to improve.

Utility model content

The purpose of this utility model is to provide the optical transceiver module of a kind of multichannel uplink receiving, to solve above-mentioned technical problem.

This utility model solves the technical scheme that its technical problem is used: the optical transceiver module of a kind of multichannel uplink receiving, including duplexer module, descending amplification module, light emission module, Optical Receivers, radio frequency mixing module and up amplification module；Described duplexer module is connected with descending amplification module, up amplification module respectively；Described descending amplification module is connected with light emission module, and described up amplification module is connected with radio frequency mixing module, and described radio frequency mixing module is connected with some Optical Receivers.

As a kind of preferred version of the present utility model, described duplexer module utility model, use frequency multiplexing technique, it is achieved the mixing of the frequency range radiofrequency signal of descending amplification module utility model and up amplification module utility model.

As a kind of preferred version of the present utility model, the frequency range of described descending amplification module utility model radiofrequency signal is 87～1000MHz；Up amplification module utility model radiofrequency signal frequency range be 5～65MHz.

As a kind of preferred version of the present utility model, described descending amplification module utility model uses the CGA7718Z of RFMD company of the U.S. to recommend module.

As a kind of preferred version of the present utility model, described up amplification module utility model uses the MAAM-009633 type radio frequency amplifier tube of MACOM company of the U.S..

As a kind of preferred version of the present utility model, the quantity of described Optical Receivers utility model is 2～N, number N for 4 tunnels, 6 roads or 8 tunnels, it is achieved the passback point-to-point network architecture of light path.

As a kind of preferred version of the present utility model, described Optical Receivers utility model uses the BLPD-PSA2-75B type PIN pipe of Xiamen Bei Lai company.

As a kind of preferred version of the present utility model, the radiofrequency signal that described light emission module utility model exports descending amplification module utility model carries out light modulation and launches output, and the frequency range of descending amplification module utility model radiofrequency signal is 87～1000MHz.

As a kind of preferred version of the present utility model, a length of 1310nm or 1550nm of transmitted wave of described light emission module utility model.

As a kind of preferred version of the present utility model, described light emission module utility model uses the BLLD-PSA2-D3 type laser instrument of Xiamen Bei Lai company.

The beneficial effects of the utility model: simple in construction, easy to use, by using the optical transceiver module of multichannel uplink receiving, original radio frequency transmission is upgraded to optical transport, extends transmission distance, up to 20 kilometers；Employing uplink multi-path receives, original light station one_to_one corresponding with network, need not change original light station and achieve that the network architecture of a C-DOCSIS multiple luminous point of local side band, save network rebuilding cost.

Accompanying drawing explanation

Fig. 1 is the optical transceiver module theory diagram of a kind of multichannel uplink receiving of the present utility model.

Reference: duplexer module 1, descending amplification module 2, light emission module 3, Optical Receivers 4, radio frequency mixing module 5, up amplification module 6.

Detailed description of the invention

Below in conjunction with the accompanying drawings this utility model embodiment is elaborated.

With reference to Fig. 1, the optical transceiver module of a kind of multichannel uplink receiving, including duplexer module 1, descending amplification module 2, light emission module 3, Optical Receivers 4, radio frequency mixing module 5 and up amplification module 6；Described duplexer module 1 is connected 6 connections respectively with descending amplification module 2, up amplification module；Described descending amplification module 2 is connected with light emission module 3, and described up amplification module 6 is connected with radio frequency mixing module 5, and described radio frequency mixing module 5 is connected with some Optical Receivers 4.

The frequency range of descending amplification module 2 radiofrequency signal is 87～1000MHz；Up amplification module 6 radiofrequency signal frequency range be 5～65MHz；Descending amplification module 2 uses the CGA7718Z of RFMD company of the U.S. to recommend module.

The quantity of Optical Receivers 4 is 2～N, number N for 4 tunnels, 6 roads or 8 tunnels；4,6 or 8 the light stations that corresponding cable television optical-fiber network Central Plains has, it is achieved the passback point-to-point network architecture of light path；This module uses the BLPD-PSA2-75B type PIN pipe of Xiamen Bei Lai company, it is achieved uplink optical signal is demodulated into the radiofrequency signal of 5～65MHz frequency bandwidths.

Light emission module 3, uses the BLLD-PSA2-D3 type laser instrument of Xiamen Bei Lai company, it is achieved output, a length of 1310nm or 1550nm of transmitted wave are launched in the light modulation of the downlink radio-frequency signal of 87～1000MHz frequency bandwidths.

Up amplification module 6, uses the MAAM-009633 type radio frequency amplifier tube of MACOM company of the U.S., it is achieved the radio frequency in 5～65MHz frequency ranges amplifies.

Duplexer module 1, uses frequency multiplexing technique, it is achieved descending 87～1000MHz frequency range radiofrequency signals and the mixing of up 5～65MHz frequency range radiofrequency signals.This hybrid radio frequency signal is docked with C-DOCSIS local side by coaxial cable, it is achieved network application based on C-DOCSIS technology.

Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses this utility model.Multiple amendment to these embodiments will be apparent from for those skilled in the art, and generic principles defined herein can realize in the case of without departing from spirit or scope of the present utility model in other embodiments；Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.

Although the most more employing reference in figure: duplexer module 1, descending amplification module 2, light emission module 3, Optical Receivers 4, radio frequency mixing module 5, up amplification module 6 term such as grade, but it is not precluded from using the probability of other term；Use these terms to be only used to more easily and describe and explain essence of the present utility model；It is all contrary with this utility model spirit for being construed as any additional restriction.

Claims

1. the optical transceiver module of a multichannel uplink receiving, it is characterised in that: include duplexer module (1), descending amplification module (2), light emission module (3), Optical Receivers (4), radio frequency mixing module (5) and up amplification module (6)；Described duplexer module (1) is connected with descending amplification module (2), up amplification module (6) respectively；Described descending amplification module (2) is connected with light emission module (3), described up amplification module (6) is connected with radio frequency mixing module (5), and described radio frequency mixing module (5) is connected with some Optical Receivers (4).

The optical transceiver module of a kind of multichannel uplink receiving the most according to claim 1, it is characterized in that: described duplexer module (1), use frequency multiplexing technique, it is achieved the mixing of the frequency range radiofrequency signal of descending amplification module (2) and up amplification module (6).

The optical transceiver module of a kind of multichannel uplink receiving the most according to claim 1 and 2, it is characterised in that: the frequency range of described descending amplification module (2) radiofrequency signal is 87～1000MHz；The frequency range of up amplification module (6) radiofrequency signal is 5～65MHz.

The optical transceiver module of a kind of multichannel uplink receiving the most according to claim 3, it is characterised in that: described descending amplification module (2) uses the CGA7718Z of RFMD company of the U.S. to recommend module.

The optical transceiver module of a kind of multichannel uplink receiving the most according to claim 3, it is characterised in that: described up amplification module (6) uses the MAAM-009633 type radio frequency amplifier tube of MACOM company of the U.S..

The optical transceiver module of a kind of multichannel uplink receiving the most according to claim 1, it is characterised in that: the quantity of described Optical Receivers (4) is 2～N, number N for 4 tunnels, 6 roads or 8 tunnels.

7. according to the optical transceiver module of a kind of multichannel uplink receiving described in claim 1 or 6, it is characterised in that: described Optical Receivers (4) uses the BLPD-PSA2-75B type PIN pipe of Xiamen Bei Lai company.

The optical transceiver module of a kind of multichannel uplink receiving the most according to claim 1, it is characterized in that: the radiofrequency signal that described light emission module (3) exports descending amplification module (2) carries out light modulation and launches output, and the frequency range of descending amplification module (2) radiofrequency signal is 87～1000MHz.

The optical transceiver module of a kind of multichannel uplink receiving the most according to claim 8, it is characterised in that: a length of 1310nm or 1550nm of transmitted wave of described light emission module (3).

The optical transceiver module of a kind of multichannel uplink receiving the most according to claim 9, it is characterised in that: described light emission module (3) uses the BLLD-PSA2-D3 type laser instrument of Xiamen Bei Lai company.