CN200994140Y

CN200994140Y - 40 Gb/s optronic repeating module using high-speed input-output port matching mode

Info

Publication number: CN200994140Y
Application number: CNU2006201727974U
Authority: CN
Inventors: 胡毅; 高繁荣
Original assignee: Wuhan Telecommunication Devices Co Ltd
Current assignee: Wuhan Telecommunication Devices Co Ltd
Priority date: 2006-12-30
Filing date: 2006-12-30
Publication date: 2007-12-19
Anticipated expiration: 2016-12-30

Abstract

The utility model discloses a 40 Gb / s photoelectric transponder module which adopts a matching mode of high speed input and output ports, involving a photovoltaic transponder module in the field of optical fiber communication. The structures of the utility model are: the first high-frequency impedance load components (3.4), the first high frequency capacitors (3.3), the first radio frequency convertors (3.2), the first radio frequency cables (3.1 ), a main amplifier, a clock recovery circuit and a de-multiplexer (1) connect and form a receiving link; a clock doubler circuit, multiplex circuit integrated component (2), RF cables (4.1), the second RF convertor (4.2), the high frequency capacitors (4.3) and the second high-frequency impedance load components (4.4) connect and form a transmission link. The 40 Gb / s high-speed signals of the utility model are only transmitted in the high-speed linker and broadband load, which effectively avoids the reflection of the high-speed signal interference and mutual radiation, reduces the transmission of high-speed signal attenuation, and ensures the integrity of high-speed signal loop.

Description

Adopt the 40Gb/s photoelectricity forwarding module of high speed input/output port matching way

Technical field

The utility model relates to the Transponder module (photoelectricity forwarding module) in a kind of fiber optic communication field, relates in particular to a kind of 40Gb/s photoelectricity forwarding module that adopts high speed input/output port matching way.

Background technology

40Gb/s Transponder module is one of key technology of 40Gb/s fiber optic transmission system.Major product is divided into two classes: the one, be applied to the Transponder module of the interconnected short distance 2km 40Gb/s1310nm of ultrahigh speed router and switch; The 2nd, be applied to the Transponder module of the 40Gb/s specific wavelength of long-reach wavelength division multiplexing system and metropolitan area network wavelength-division multiplex system.

40Gb/s Transponder module also has other application, and the particularly application of the short-range data communications field as the communication between the supercomputer, needs the field of real-time Transmission mass data etc.

40Gb/s Transponder module is a two-way module device, is used between synchronous digital grade (SDH) mpsi layer and the electricity section layer compatible electricity/optical interface is provided.This module is an integrated 40Gb/s optical sender and a 40Gb/s optical receiver has the multiplexing of 16 passages and demultiplexing function, its at a high speed (40Gb/s) signal of telecommunication all handle in inside modules, the external electric interface is the data-signal of 2.5Gb/s.Also comprise clock synthetic circuit and clock recovery circuitry in the module.

As Fig. 1, the match circuit of common 40Gb/s high-speed-differential input/output port is to realize at printed circuit board (pcb), adopt components and parts such as resistance, electric capacity, at the PCB upward wiring, transmit high-speed signals, this frame mode exists following critical defect for the 40Gb/s high-speed electrical signals:

1, because the requirement of 40Gb/s high speed signal difference input/output port transfer impedance coupling is very high, and impedance does not match slightly, will cause signal distortion, high speed signal reflects and radiation in a large number.

2,40Gb/s high speed signal difference input and output matching circuit is at the printed circuit board (pcb) cabling, owing to exist external electromagnetic field, pickup electrode to be vulnerable to the interference of external electromagnetic ripple, Electro Magnetic Compatibility and anti-emi characteristics are relatively poor.

3, because the high speed signal of 40Gb/s is the form transmission with microwave field, square being inversely proportional to of the transmission attenuation of high speed signal and transmission range, long slightly in the printed circuit board transmission range, 40Gb/s signal strength signal intensity and energy will sharply descend, and loss is violent.

Summary of the invention

The purpose of this utility model is to overcome the above-mentioned shortcoming and defect that prior art exists, and a kind of 40Gb/s photoelectricity forwarding module that adopts high speed input/output port matching way is provided.

The purpose of this utility model is achieved in that

On the basis of as shown in Figure 1 common 40Gb/s Transponder module, delete first and second 40Gb/s high speed telecommunications match circuit plate member (3,4), choose suitable components, adopt hard connecting mode, realize multiplexingly in the 40Gb/s Transponder module exporting the matched well of input port at a high speed with the demultiplexing circuit.

Specifically, as Fig. 2, the utility model comprise main put, clock recovery circuitry and demultiplexing circuit integrated component (1) and clock multiplier circuit and multiplex circuit integrated component (2);

Be provided with first and second radio frequency cable (3.1,4.1), first and second radio frequency converter (3.2,4.2), first and second high frequency capacitor (3.3,4.3), first and second high-frequency resistance load component (3.4,4.4);

The first high-frequency resistance load component (3.4), first high frequency capacitor (3.3), first radio frequency converter (3.2), first radio frequency cable (3.1) main is put, clock recovery circuitry and demultiplexing circuit integrated component (1) connect to form the reception link successively;

Clock multiplier circuit and multiplex circuit integrated component (2), second radio frequency cable (4.1), second radio frequency converter (4.2), second high frequency capacitor (4.3), the second high-frequency resistance load component (4.4) connects to form transmitting chain successively;

Multiplexing and demultiplexing circuit basic principle are in the utility model:

In 40Gb/s electrolysis multiplex circuit part, the 40Gb/s light signal converts the signal of telecommunication to through detector, realize light/electricity conversion, and realize regularly restoring 40Gb/s data and clock again through clock data recovery circuit (CDR), after serial/parallel conversion exports 16 the tunnel than low rate 2.5Gb/s data and one tunnel difference 2.5GHz parallel clock.

Reply by cable at 40Gb/s and to use circuit part, the 16 tunnel than low rate difference 2.5Gb/s data and one tunnel difference 2.5GHz parallel clock input signal, through parallel/serial conversion (synchronous multiplexing), regularly export the 40Gb/s data-signal again.

The utlity model has following advantage and good effect:

1, owing to adopt the high speed match circuit network of radio frequency cable, rf adapter, high frequency capacitor and high frequency load impedance compoment composition, the transfer impedance coupling is good, has avoided because signal reflex and the radiation that difference output input port does not match and causes.

2, since 40Gb/s high speed match circuit network by have the shielding and the good radio-frequency unit of ground connection form, the complete conductively-closed of the interference of external electromagnetic ripple is fallen, shielded simultaneously the 40Gb/s high speed signal to external radiation, Electro Magnetic Compatibility and anti-emi characteristics are good.

3, because the high speed signal of 40Gb/s only transmits in rf adapter, need not transmit through PCB, signal transmission path is the shortest, has reduced loss, and 40Gb/s signal strength signal intensity and energy are kept.

In a word, the 40Gb/s high-speed electrical signals is only transmitted in high speed connector and wideband load, has avoided the reflection and the mutual radiated interference of high speed signal effectively, has reduced the transmission attenuation of high speed signal, has guaranteed the integrality in high speed signal loop.

Description of drawings

Fig. 1 is the multiplexing and demultiplexing circuit block diagram of common 40Gb/s Transponder module.

Fig. 2 is the utility model block diagram.

Wherein:

1-master is put, clock recovery circuitry and demultiplexing circuit integrated component;

2-clock multiplier circuit and multiplex circuit integrated component;

3-the one 40Gb/s high speed telecommunications match circuit plate member;

4-the 2nd 40Gb/s high speed telecommunications match circuit plate member;

3.1-first radio frequency cable;

3.2-first radio frequency converter;

3.3-first high frequency capacitor;

3.4-the first high-frequency resistance load component;

4.1-first radio frequency cable;

4.2-first radio frequency converter;

4.3-first high frequency capacitor;

4.4-the first high-frequency resistance load component;

English to Chinese:

1, Transponder: photoelectricity is transmitted;

2, V (M): radio frequency V-type male joint;

3, GPPO (F): radio frequency GPPO type female joint.

Embodiment

Below in conjunction with Fig. 2 relevant functional part is described in detail:

1, first and second radio frequency cable (3.1,4.1)

What first and second radio frequency cable (3.1,4.1) adopted is CA-50 (50GHz) coaxial cable of SHF company.

2, first and second radio frequency converter (3.2,4.2)

First and second radio frequency converter (3.2,4.2) adopts V (M) type-GPPO (F) type RF repeating head.

3, first and second high frequency capacitor (3.3,4.3)

What first and second high frequency capacitor (3.3,4.3) adopted is DC BLOCK model 8141 (40GHz).

4, first and second high-frequency resistance load component (3.4,4.4)

ST4010 model 50 ohmages (40GHz) that first and second high-frequency resistance load component (3.4,4.4) adopts.

Claims

1, a kind of 40Gb/s photoelectricity forwarding module that adopts high speed input/output port matching way, comprise main put, clock recovery circuitry and demultiplexing circuit integrated component (1) and clock multiplier circuit and multiplex circuit integrated component (2); It is characterized in that:

Clock multiplier circuit and multiplex circuit integrated component (2), second radio frequency cable (4.1), second radio frequency converter (4.2), second high frequency capacitor (4.3), the second high-frequency resistance load component (4.4) connects to form transmitting chain successively.

2, by the described 40Gb/s photoelectricity of claim 1 forwarding module, it is characterized in that:

What first and second radio frequency cable (3.1,4.1) adopted is the CA-50 coaxial cable of SHF company.

3, by the described 406b/s photoelectricity of claim 1 forwarding module, it is characterized in that:

First and second radio frequency converter (3.2,4.2) adopts radio frequency V-type male joint-radio frequency GPPO type female joint.

4, by the described 40Gb/s photoelectricity of claim 1 forwarding module, it is characterized in that:

What first and second high frequency capacitor (3.3,4.3) adopted is DC BLOCK model 8141.

5, by the described 40Gb/s photoelectricity of claim 1 forwarding module, it is characterized in that:

ST4010 model 50 ohmages that first and second high-frequency resistance load component (3.4,4.4) adopts.