CN201392411Y

CN201392411Y - Novel low power consumption 10G SFP+LR optical module

Info

Publication number: CN201392411Y
Application number: CN200920035508U
Authority: CN
Inventors: 吴艳林; 高海兵; 施高鸿; 刘圣
Original assignee: Innolight Technology Suzhou Ltd
Current assignee: Innolight Technology Suzhou Ltd
Priority date: 2009-03-12
Filing date: 2009-03-12
Publication date: 2010-01-27
Anticipated expiration: 2019-03-12

Abstract

The utility model provides a novel low power consumption 10G SFP+LR optical module, which comprises a power supply unit, an optical transmission unit, an optical receiving unit, a digital diagnosis unit and a 20PIN electrical interface, wherein the power supply unit is electrically connected with the optical transmission unit, the optical receiving unit, the digital diagnosis unit and the 20PIN electrical interface respectively; the optical receiving unit is connected into the 20PIN electrical interface; the digital diagnosis unit is connected with the optical receiving unit, the optical transmission unit and the 20PIN electrical interface; and the optical transmission unit is also connected into the 20PIN electrical interface. The optical module has high-speed photoelectricity conversion function, small volume, low power consumption and stable performance, adopts a laser emission optical component and a laser driver with high efficiency and low power consumption to integrate the traditional amplitude-limiting amplifying circuit in an optical receiving component, thereby simplifying the circuit design, improving the stability of module performance greatly, and lowering the module power consumption.

Description

A kind of 10G SFP+LR optical module of novel low-power consumption

Technical field

The utility model relates to a kind of hot-swappable optical transceiver module of little encapsulation that is applied in the high-speed light transmission network, belongs to the optical communication technique field.

Background technology

Along with the development of communication network convergence, Fibre Optical Communication Technology is with its high capacity, the advantage of two-forty is widely used and popularizes, especially in recent years the huge increase of the urgency of broadband services, capacity and closeness to optical network system equipment are had higher requirement, also impel optical module to miniaturization, the development of low-power consumption aspect, higher in order to adapt to integrated level, safeguard simpler demand, a kind of new optical module standard has in the industry cycle been proposed, the speed of this optical module can reach 10G, power consumption is less than 1W, the little encapsulation of adaptive zone LC interface hot-swappable (Enhanced 8.5and 10 Gigabit Small Form FactorPluggable Module are called for short " SFP+ ") module.Since the SFP+ module have miniaturization, integrated and use in hot-swappable, change flexible characteristic, making becomes industry main flow device of future generation, the producer that researches and develops successfully this module abroad also has only several families, and ripe product is not also arranged at home.

The SFP+ module can be used for various typical products, as high speed device, server, route test and asynchronous transfer mode (being called for short " ATM "), the test of optical fiber and gigabit Ethernet, infinite bandwidth networking, SFP+ module also allow operating parameter is carried out real time access, are easy to connect use.

Traditional its light receiving unit of SFP optical module comprises laser pick-off optical module and amplitude limit amplification treatment circuit, has increased circuit complexity, has increased cost, has especially increased the power consumption of optical module, makes it be difficult to satisfy the requirement of power consumption less than 1W.

Summary of the invention

The purpose of this utility model is to overcome the deficiency that prior art exists, and a kind of SFP+ of satisfying consensus standard, integrated level height, circuit structure is simple, volume is little, low in energy consumption single mode 10G SFP+LR optical module are provided.

The purpose of this utility model is achieved through the following technical solutions:

A kind of 10G SFP+LR optical module of novel low-power consumption, comprise power supply unit, Optical Transmit Unit, light receiving unit, digital diagnosis unit, 20PIN electrical interface, characteristics are: described power supply unit electrically connects with Optical Transmit Unit, light receiving unit, digital diagnosis unit, 20PIN electrical interface respectively, light receiving unit inserts the 20PIN electrical interface, digital diagnosis unit is connected with light receiving unit, Optical Transmit Unit, 20PIN electrical interface respectively, and Optical Transmit Unit also inserts the 20PIN electrical interface.

Further, the 10G SFP+LR optical module of above-mentioned a kind of novel low-power consumption, described light receiving unit comprises the laser pick-off optical module, converts the light signal that receives to electric signal output through processing and amplifying;

Described Optical Transmit Unit comprises Laser emission optical module, digital to analog converter and laser driver, and laser driver is delivered to the Laser emission optical module with electric signal through driving processing and amplifying, and the Laser emission optical module converts the electrical signal to light signal output;

Described power supply unit comprises energy supply startup control circuit, carries out soft startup of electric power;

Described digital diagnosis unit comprises external memory modules and microcontroller processor, the microcontroller processor comprises I/O mouth input/output module, AD modular converter, communication module and data processing module, the microcontroller processor transmits and received signal, and external memory modules is carried out data storage;

Described 20PIN electrical interface, the interface that power supply is provided and carries out communication with external system.

Again further, the 10G SFP+LR optical module of above-mentioned a kind of novel low-power consumption, described laser pick-off optical module inside is integrated with photodetector, trans-impedance amplifier and limiting amplifier.

The substantive distinguishing features of technical solutions of the utility model and progressive being mainly reflected in:

The 10G SFP+LR optical module of the utility model low-power consumption has the function of high speed optoelectronic conversion, volume is little, low in energy consumption, stable performance, adopt the Laser emission optical module and the laser driver of high-level efficiency low-power consumption, traditional amplitude limiting amplifier circuit is integrated in optical fiber receive module inside, simplified circuit design, improve module performance stability, reduced module dissipation simultaneously.Be rated as integrate novelty, creativeness, practicality new design, be suitable for scale of mass production, produced good social benefit and economic benefit, application prospect is very wide.

Description of drawings

Below in conjunction with accompanying drawing technical solutions of the utility model are described further:

Fig. 1: the functional block diagram of the utility model 10G SFP+LR module;

Fig. 2: the structured flowchart of the utility model 10G SFP+LR module.

The implication of each Reference numeral sees the following form among the figure:

Reference numeral	Implication	Reference numeral	Implication	Reference numeral	Implication
Reference numeral	Implication	Reference numeral	Implication	Reference numeral	Implication		1	Light receiving unit	101	The laser pick-off optical module	2	Optical Transmit Unit
201	The Laser emission optical module	202	Digital to analog converter	203	Laser driver		1	Light receiving unit	101	The laser pick-off optical module	2	Optical Transmit Unit
201	The Laser emission optical module	202	Digital to analog converter	203	Laser driver	3	Power supply unit	301	Energy supply startup control circuit	4	Digital diagnosis unit
401	External memory modules	402	I/O mouth input/output module	403	The AD modular converter	3	Power supply unit	301	Energy supply startup control circuit	4	Digital diagnosis unit
401	External memory modules	402	I/O mouth input/output module	403	The AD modular converter	404	Communication module	405	Data processing module	5	The 20PIN electrical interface
501	20PIN electricity port					404	Communication module	405	Data processing module	5	The 20PIN electrical interface

Embodiment

As shown in Figure 1, the 10G SFP+LR optical module of novel low-power consumption, comprise power supply unit 3, Optical Transmit Unit 2, light receiving unit 1, digital diagnosis unit 4,20PIN electrical interface 5, power supply unit 3 electrically connects with Optical Transmit Unit 2, light receiving unit 1, digital diagnosis unit 4,20PIN electrical interface 5 respectively, light receiving unit 1 inserts 20PIN electrical interface 5, digital diagnosis unit 4 is connected with light receiving unit 1, Optical Transmit Unit 2,20PIN electrical interface 5 respectively, and Optical Transmit Unit 2 also inserts 20PIN electrical interface 5.

As Fig. 2, light receiving unit 1 comprises laser pick-off optical module 101, inside is integrated with photodetector, trans-impedance amplifier and limiting amplifier, and the light signal that is used for receiving is converted into electric signal then through the output of amplitude limit processing and amplifying through photodetector.

Optical Transmit Unit 2 comprises Laser emission optical module 201, digital to analog converter 202 and laser driver 203, laser driver 203 is used for the driving laser led lighting, digital to analog converter 202 links to each other with the microcontroller processor, be used to produce bias current signal and modulated current signal, its output voltage signal delivers to that laser driver converts corresponding bias current to and modulated current signal is given Laser emission optical assembly 201; Laser emission optical module 201 comprises laser diode LD and monitor photodiode PD, and laser diode LD is used to produce laser, and monitor photodiode PD is used for the luminous intensity of monitoring laser diode LD; Laser driver 203 will transfer to the electric signal of module and deliver to Laser emission optical module 201 through driving processing and amplifying, and Laser emission optical module 201 converts the electrical signal to required light signal output; The power consumption of laser driver 203 can be rated as minimum in like product, and under the situation that identical laser bias current and bias current are provided, power consumption is minimum in like product, and is as shown in table 1 with the power consumption contrast of the employed similar laser driver of industry.In a word, the power consumption of photoelectric conversion module is much smaller than the requirement of SFP+ multi-source agreement standard, and power consumption is 0.6W.

Table 1

Power supply unit 3 comprises energy supply startup control circuit 301, is made up of field effect transistor and peripheral circuit, and the grid of its field effect transistor links to each other with the I/O mouth of microcontroller processor by resistive element, controls the electric power starting time of optical module by the microcontroller processor.

Digital diagnosis unit 4 comprises external memory modules 401 and microcontroller processor, the microcontroller processor comprises I/O mouth input/output module 402, AD modular converter 403, communication module 404 and data processing module 405, external memory modules 401 is used for storing subscriber information and module information, the microcontroller processor is used for optical module is transmitted and received signal, supply voltage and working temperature are carried out data acquisition and processing (DAP), deliver to remote computer and supervisory system; AD modular converter 403 is used to carry out temperature detection; I/O mouth input/output module 402 is the bridge of association process device and peripheral components, is used for data and external devices that microprocessor is handled are exchanged, and communication module 404 is used for carrying out communication with external system; Data processing module 405 is used for by signal is carried out data processing optical transmission circuit being controlled.

20PIN electrical interface 5, the interface that power supply is provided and carries out communication with external system.

10G SFP+LR optical module meets the optical module communication standard of new " SFP+ " that releases of industry, it is electrical interface compatibility " SFF-8031 " standard, optical interface compatibility " IEEE-802.3ae " standard, the numerical diagnostic function satisfies " SFF-8072 " standard, is the photoelectric conversion module of 10 kilometers of a single mode transport; Volume satisfies the SFF-8431 consensus standard of the SFP+ photoelectric conversion module that industry newly goes out fully, and volume only is 56.4mm * 13.7mm * 8.5mm.

During concrete the application, the external electric modulation signal enters optical module by 20PIN electricity port 501, deliver to laser driver 203, deliver to Laser emission optical module 201 after driving is handled through laser driver, digital to analog converter 202 provide voltage signal to laser driver 203 to produce corresponding bias current and modulating current, make Laser emission optical module 201 luminous and monitor its luminous intensity and duty, the light signal that Laser emission optical module 201 produces will be delivered to optical-fiber network by optical fiber.On the other hand, the light signal of exterior light network is transmitted through the fiber to laser pick-off optical module 101, and through opto-electronic conversion, processing and amplifying, electric signal is directly delivered to external system by optical module 20PIN electricity port 501.Limiting amplifier and peripheral circuit are integrated in the laser pick-off optical module 101, and do not increase extra power consumption.The microcontroller processor transmits and received signal by 402 pairs of optical modules of its I/O port input/output module, and supply voltage and working temperature are carried out data acquisition; 403 pairs of module by signal of AD modular converter are carried out data-switching, and voltage supplied and working temperature are detected; Communication module 404 realizations and remote computer and supervisory system data interaction; The signal of 405 pairs of collections of data processing module carries out data processing, module is controlled and carried out data communication with remote computer; External storage module 401 is used for data storage, and this digital diagnosis unit is mainly optical module the numerical diagnostic function is provided, and makes it meet the SFF-8472 consensus standard.

The utility model low-power consumption optical module is tested under identical test environment with traditional optical module, and the performance index of the utility model low-power consumption optical module obviously are better than traditional optical module, and measured data is as shown in table 2.

Table 2

In sum, the 10G SFP+LR optical module of the utility model low-power consumption has the function of high speed optoelectronic conversion, volume is little, low in energy consumption, stable performance, adopt the Laser emission optical module and the laser driver of high-level efficiency low-power consumption, traditional amplitude limiting amplifier circuit is integrated in optical fiber receive module inside, simplify circuit design, improved module performance stability, reduced module dissipation simultaneously.Be rated as integrate novelty, creativeness, practicality new design, be suitable for scale of mass production, produced good social benefit and economic benefit.

What need understand is: above-mentioned explanation is not to be to restriction of the present utility model, and in the utility model design scope, the interpolation of being carried out, conversion, replacement etc. also should belong to protection domain of the present utility model.

Claims

1. the 10G SFP+LR optical module of a novel low-power consumption, comprise power supply unit (3), Optical Transmit Unit (2), light receiving unit (1), digital diagnosis unit (4), 20PIN electrical interface (5), it is characterized in that: described power supply unit (3) respectively with Optical Transmit Unit (2), light receiving unit (1), digital diagnosis unit (4), 20PIN electrical interface (5) electrically connects, light receiving unit (1) inserts 20PIN electrical interface (5), digital diagnosis unit (4) respectively with light receiving unit (1), Optical Transmit Unit (2), 20PIN electrical interface (5) connects, and Optical Transmit Unit (2) also inserts 20PIN electrical interface (5).

2. the 10G SFP+LR optical module of a kind of novel low-power consumption according to claim 1, it is characterized in that: described light receiving unit (1) comprises laser pick-off optical module (101), converts the light signal that receives to electric signal output through processing and amplifying;

Described Optical Transmit Unit (2) comprises Laser emission optical module (201), digital to analog converter (202) and laser driver (203), laser driver (203) is delivered to Laser emission optical module (201) with electric signal through driving processing and amplifying, and Laser emission optical module (201) converts the electrical signal to light signal output;

Described power supply unit (3) comprises energy supply startup control circuit (301), carries out soft startup of electric power;

Described digital diagnosis unit (4) comprises external memory modules (401) and microcontroller processor, the microcontroller processor comprises I/O mouth input/output module (402), AD modular converter (403), communication module (404) and data processing module (405), the microcontroller processor transmits and received signal, and external memory modules (401) is carried out data storage;

Described 20PIN electrical interface (5), the interface that power supply is provided and carries out communication with external system.

3. the 10G SFP+LR optical module of a kind of novel low-power consumption according to claim 1, it is characterized in that: described laser pick-off optical module (101) inside is integrated with photodetector, trans-impedance amplifier and limiting amplifier.