CN109936410A - It is a kind of for the driver of MZM modulator single-ended drive, light emitting secondary module, light delivery module and dwdm system - Google Patents
It is a kind of for the driver of MZM modulator single-ended drive, light emitting secondary module, light delivery module and dwdm system Download PDFInfo
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- CN109936410A CN109936410A CN201910271831.5A CN201910271831A CN109936410A CN 109936410 A CN109936410 A CN 109936410A CN 201910271831 A CN201910271831 A CN 201910271831A CN 109936410 A CN109936410 A CN 109936410A
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Abstract
The present invention relates to wireless communication technology fields, more particularly to a kind of driver for MZM modulator single-ended drive, including triode Q1, resistance R1, resistance R2, resistance R3, high speed capacitor C1, current source Is, power Vcc 1 and power Vcc 2, MZM modulator the first arm optical phase shifter anode is welded with the first pad, second arm optical phase shifter anode is welded with the second pad, first pad is connect through load R2 with power Vcc 2, and the second pad is connect through load R3 with power Vcc 2；The base stage of rf signal input triode Q1 to be modulated, triode Q1 collector are connect with resistance R1 second end and high speed capacitor C1 first end, and triode Q1 emitter is grounded through current source Is, and capacitor C1 second end is connect with the first pad.Substantial effect of the invention is: the load resistance of MZM modulator is used as the pull-up resistor of driver simultaneously, does not need to establish bias-tee circuit structure, can significantly reduce power consumption.
Description
Technical field
The present invention relates to wireless communication technology fields, and in particular to a kind of driver for MZM modulator single-ended drive,
Light emitting secondary module, light delivery module and dwdm system.
Background technique
In order to enrich the growing data communication needs of people, data center's handling capacity is increasing, and distributed
Network insertion unit distance is different, can cover to ensure all kinds of access units, and the light that industry is badly in need of high-speed long range passes
Defeated module.However, also leading to effect of dispersion increasing while high-speed brings bigger data throughput, further influencing
The promotion of transmission range.Mach increases Dare modulator (Mach-Zehnder Modulator), i.e. MZM modulator, may be implemented
Higher rate, the MZM modulator of single-ended drive can also solve the problems, such as dispersion limited, therefore be away from application for high speed length
A good research direction.But the drive scheme of current MZM modulator need to establish bias-tee circuit, cost and power consumption compared with
It is high.
Chinese patent CN107003585A, publication date on August 1st, 2017, the differential TWE MZM for silicon photon drove
Device, including differential drive, the first and second capacitors and the first and second terminals.Differential drive includes being collectively form
The first differential output end and the second differential output end of differential pair.First differential output end DC is coupled to the first arm of TWE MZM
The cathode of optical phase shifter.Second differential output end DC is coupled to the cathode of the second arm optical phase shifter of TWE MZM.First electricity
Second differential output end AC is coupled to the anode of the first arm optical phase shifter by container.Second capacitor is by the first differential output end
AC is coupled to the anode of the second arm optical phase shifter.First and second terminals are respectively coupled to the first or second arm optics phase shift
The cathode and anode of device.But its structure is still sufficiently complex, is unfavorable for the miniaturization of element.
Summary of the invention
The technical problem to be solved by the present invention is current MZM modulator cost and the higher technical problem of power consumption.It proposes
A kind of cost without using bias-tee circuit is lower and driver, the light hair of energy consumption lower MZM modulator single-ended drive
Penetrate secondary module, light delivery module and dwdm system.
In order to solve the above technical problems, the technical solution used in the present invention are as follows: one kind is used for MZM modulator single-ended drive
Driver, the driver 51 include triode Q1, resistance R1, current source Is and power Vcc 1, optical signals MZM modulation
The input port Lin of device is inputted, and is exported from the output port Lout of MZM modulator, 62 optical phase shifter of the first arm of MZM modulator
Anode is welded with the first pad 64, and 63 optical phase shifter anode of the second arm of MZM modulator is welded with the second pad 65, and described first
Pad 64 is connect through resistance R2 with a DC power supply Vcc2, and second pad 65 is connect through resistance R3 with power Vcc 2, described
The input of second pad 65 has direct current signal；The driver 51 is coupled through high speed capacitor C1 with MZM modulator, radio frequency electrical to be modulated
Signal inputs the base stage of triode Q1, and triode Q1 collector is connect with resistance R1 second end and high speed capacitor C1 first end,
Resistance R1 first end is connect with power Vcc 1, and triode Q1 emitter is grounded through current source Is, capacitor C1 second end and the first weldering
Disk connection.The upper limit of output voltage swing can be improved, by adjusting power supply Vcc1 voltage swing by adjusting current source Is's
The size of the adjustable output voltage swing of size of current.
Preferably, further including amplifier U1, the amplifier U1 input terminal inputs rf signal to be modulated, described to put
Big device U1 output end is connect with triode Q1 base stage.
Preferably, the MZM modulator is LiNiO3 MZM modulator, InP MZM modulator or Si-P MZM modulation
Device.
A kind of light emitting secondary module based on MZM modulator has used as the aforementioned a kind of for the single-ended drive of MZM modulator
Dynamic driver, including tunable laser 41, optoisolator 42, wavelength locker 45 and optical fiber 44, the tunable laser 41
The optical signal of outgoing is connect by optoisolator 42 with the input port Lin of MZM modulator 43, and wavelength locker 45 swashs with adjustable
Light device 41 connects, and the output port Lout of MZM modulator 43 is connect with optical fiber 44, and MZM modulator 43 is driven by driver 51.
A kind of light delivery module has used a kind of light emitting secondary module based on MZM modulator as the aforementioned, including originator
Clock recovery module 31, MCU35, receiving end clock recovery module 36 and receiving end optical module 37, the clock originator recovery module
31 and receiving end clock recovery module 36 connect with MCU35, transmitting terminal electric signal input clock originator recovery module 31 input
End, 31 output end of clock originator recovery module are connect with the input terminal of the driver 51 of light emitting secondary module 33, and driver 51 is defeated
Outlet connect 33 output end of light emitting secondary module with 33 input terminal of light emitting secondary module and connect with optical fiber 34 is sent, reception optical fiber 38
It is connect with 37 input terminal of receiving end optical module, 37 output end of receiving end optical module and 36 input terminal of receiving end clock recovery module connect
It connects.
Preferably, the receiving end optical module 37 is the receiving module that PIN diode or avalanche diode are constituted.
A kind of dwdm system for wireless forward pass is constructed by a kind of light delivery module as the aforementioned, including several AAU
Light delivery module 21, several end DU light delivery modules 22, several circulators, the first channel join-splitting device 23, second is held to close partial wave
Device 24 and single mode optical fiber 27, the end AAU light delivery module 21 match one by one with the end DU light delivery module 22, use the same letter
Road, the transmission optical fiber 34 and reception optical fiber 38 of several end AAU light delivery modules 21 pass through circulator and the first channel join-splitting device
23 connections, the transmission optical fiber 34 and reception optical fiber 38 of several several end DU light delivery modules 22 pass through circulator and second
Channel join-splitting device 24 connects, and the first channel join-splitting device 23 is connect with the second channel join-splitting device 24 by single mode optical fiber 27, the end AAU optical transport mould
Block 21 is connect with terminal AAU, and the end DU light delivery module 22 is connect with the DU unit of local side.
Substantial effect of the invention is: the load resistance of MZM modulator is used as the pull-up resistor of driver simultaneously, is not required to
Bias-tee circuit structure is established, power consumption can be significantly reduced, reduce cost, is conducive to large-scale promotion and uses.
Detailed description of the invention
Fig. 1 is one drive circuit schematic diagram of embodiment.
Fig. 2 is one light emitting sub-module structure schematic diagram of embodiment.
Fig. 3 is one light delivery module structural schematic diagram of embodiment.
Fig. 4 is one dwdm system structural schematic diagram of embodiment.
Wherein: 21, the end AAU light delivery module, 22, the end DU light delivery module, the 23, first channel join-splitting device, the 24, second conjunction point
Wave device, 25, circulator, 27, single mode optical fiber, 31, clock originator recovery module, 33, light emitting secondary module, 34, transmission optical fiber,
35, MCU, 36, receiving end clock recovery module, 37, receiving end optical module, 38, reception optical fiber, 41, tunable laser, 42, light every
From device, 43, MZM modulator, 44, optical fiber, 45, wavelength locker, 51, driver, 62, the first arm of MZM modulator, 63, MZM tune
The second arm of device processed, the 64, first pad, the 65, second pad.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, a specific embodiment of the invention is further described in detail.
Embodiment one:
LiNiO3 MZM modulator, InP MZM can be selected in a kind of driver for MZM modulator single-ended drive, MZM modulator
Modulator or Si-P MZM modulator.As shown in Figure 1, driver 51 includes triode Q1, resistance R1, current source in the present embodiment
Is and power Vcc 1, the input port Lin input of optical signals MZM modulator are defeated from the output port Lout of MZM modulator
Out, 62 optical phase shifter anode of the first arm of MZM modulator is welded with the first pad 64, the 63 optics phase shift of the second arm of MZM modulator
Device anode is welded with the second pad 65, and the first pad 64 is connect through resistance R2 with a DC power supply Vcc2, and the second pad 65 is through electricity
Resistance R3 is connect with power Vcc 2, and the input of the second pad 65 has direct current signal；Driver 51 is through high speed capacitor C1 and MZM modulator coupling
It closes, the base stage of rf signal input triode Q1 to be modulated, triode Q1 collector and resistance R1 second end and high speed electricity
Hold the connection of C1 first end, resistance R1 first end is connect with power Vcc 1, and triode Q1 emitter is grounded through current source Is, capacitor C1
Second end is connect with the first pad.The upper limit that output voltage swing can be improved by adjusting power supply Vcc1 voltage swing, passes through
Adjust the size of the adjustable output voltage swing of size of current of current source Is.Amplifier U1 input terminal inputs radio frequency telecommunications to be modulated
Number, amplifier U1 output end is connect with triode Q1 base stage.
A kind of light emitting secondary module based on MZM modulator has used as the aforementioned a kind of for the single-ended drive of MZM modulator
Dynamic driver, as shown in Fig. 2, including tunable laser 41, optoisolator 42, wavelength locker 45 and optical fiber 44, it is adjustable to swash
The optical signal that light device 41 is emitted is connect by optoisolator 42 with the input port Lin of MZM modulator 43, wavelength locker 45 and
Tunable laser 41 connects, and the output port Lout of MZM modulator 43 is connect with optical fiber 44, and MZM modulator 43 is by driver 51
Driving.
A kind of light delivery module has used a kind of light emitting secondary module based on MZM modulator as the aforementioned, such as Fig. 3 institute
Show, including clock originator recovery module 31, MCU35, receiving end clock recovery module 36 and receiving end optical module 37, clock originator is extensive
Multiple module 31 and receiving end clock recovery module 36 are connect with MCU35, and transmitting terminal electric signal inputs clock originator recovery module
31 input terminals, 31 output end of clock originator recovery module are connect with the input terminal of the driver 51 of light emitting secondary module 33, driving
51 output end of device connect 33 output end of light emitting secondary module with 33 input terminal of light emitting secondary module and connect with optical fiber 34 is sent, and receives
Optical fiber 38 is connect with 37 input terminal of receiving end optical module, and 37 output end of receiving end optical module and receiving end clock recovery module 36 input
End connection.Receiving end optical module 37 is the receiving module that PIN diode or avalanche diode are constituted.
A kind of dwdm system for wireless forward pass, as shown in figure 4, being constructed by a kind of light delivery module as the aforementioned, packet
Include several end AAU light delivery modules 21, several end DU light delivery modules 22, several circulators, the first channel join-splitting device 23,
Second channel join-splitting device 24 and single mode optical fiber 27, the end AAU light delivery module 21 matches one by one with the end DU light delivery module 22, using same
One channel, the transmission optical fiber 34 and reception optical fiber 38 of several end AAU light delivery modules 21 are closed by circulator and first
Channel-splitting filter 23 connects, and the transmission optical fiber 34 and reception optical fiber 38 of several several end DU light delivery modules 22 pass through circulator
It is connect with the second channel join-splitting device 24, the first channel join-splitting device 23 is connect with the second channel join-splitting device 24 by single mode optical fiber 27, the end AAU light
Transmission module 21 is connect with terminal AAU, and the end DU light delivery module 22 is connect with the DU unit of local side.
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form
Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (7)
1. a kind of driver for MZM modulator single-ended drive, which is characterized in that
The driver (51) includes triode Q1, resistance R1, current source Is and power Vcc 1, optical signals MZM modulator
Input port Lin input, from the output port Lout of MZM modulator export, the first arm of MZM modulator (62) optical phase shifter
Anode is welded with the first pad (64), and the second arm of MZM modulator (63) optical phase shifter anode is welded with the second pad (65), institute
It states the first pad (64) and is connect through resistance R2 with a DC power supply Vcc2, second pad (65) is through resistance R3 and power Vcc 2
Connection, the second pad (65) input have direct current signal；
The driver (51) couples through high speed capacitor C1 with MZM modulator, rf signal input triode Q1's to be modulated
Base stage, triode Q1 collector are connect with resistance R1 second end and high speed capacitor C1 first end, resistance R1 first end and power supply
Vcc1 connection, triode Q1 emitter are grounded through current source Is, and capacitor C1 second end is connect with the first pad.
2. a kind of driver for MZM modulator single-ended drive according to claim 1, which is characterized in that
It further include amplifier U1, the amplifier U1 input terminal inputs rf signal to be modulated, the amplifier U1 output end
It is connect with triode Q1 base stage.
3. a kind of driver for MZM modulator single-ended drive according to claim 1 or 2, which is characterized in that
The MZM modulator is LiNiO3 MZM modulator, InP MZM modulator or Si-P MZM modulator.
4. a kind of light emitting secondary module based on MZM modulator, has used one kind as described in any one of claims 1 to 3 to be used for
The driver of MZM modulator single-ended drive, which is characterized in that
Including tunable laser (41), optoisolator (42), wavelength locker (45) and optical fiber (44), the tunable laser
(41) optical signal being emitted is connect by optoisolator (42) with the input port Lin of MZM modulator (43), wavelength locker
(45) it is connect with tunable laser (41), the output port Lout of MZM modulator (43) is connect with optical fiber (44), MZM modulator
(43) it is driven by driver (51).
5. a kind of light delivery module has used a kind of light emitting secondary module based on MZM modulator as claimed in claim 4,
It is characterized in that,
Including clock originator recovery module (31), MCU(35), receiving end clock recovery module (36) and receiving end optical module (37),
The clock originator recovery module (31) and receiving end clock recovery module (36) and MCU(35) connection, transmitting terminal electric signal
Clock originator recovery module (31) input terminal is inputted, clock originator recovery module (31) output end and light emitting secondary module (33)
The input terminal of driver (51) connects, and driver (51) output end connect light emitting time mould with light emitting secondary module (33) input terminal
Block (33) output end is connect with optical fiber (34) are sent, and reception optical fiber (38) is connect with receiving end optical module (37) input terminal, receiving end
Optical module (37) output end is connect with receiving end clock recovery module (36) input terminal.
6. a kind of light delivery module according to claim 5, which is characterized in that
The receiving end optical module (37) is the receiving module that PIN diode or avalanche diode are constituted.
7. a kind of dwdm system for wireless forward pass is constructed by a kind of light delivery module such as described in claim 5 or 6,
It is characterized in that,
Including several end AAU light delivery modules (21), several end DU light delivery modules (22), several circulators (25),
First channel join-splitting device (23), the second channel join-splitting device (24) and single mode optical fiber (27), the end AAU light delivery module (21) and the end DU
Light delivery module (22) matches one by one, uses the same channel, the transmission optical fiber (34) of several end AAU light delivery modules (21)
And reception optical fiber (38) is connect by circulator (25) with the first channel join-splitting device (23), several several end DU optical transport moulds
The transmission optical fiber (34) and reception optical fiber (38) of block (22) are connect by circulator (25) with the second channel join-splitting device (24), and first
Channel join-splitting device (23) is connect with the second channel join-splitting device (24) by single mode optical fiber (27), the end AAU light delivery module (21) and terminal
AAU connection, the end DU light delivery module (22) are connect with the DU unit of local side.
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|---|---|---|---|
| CN201910271831.5A CN109936410A (en) | 2019-04-04 | 2019-04-04 | It is a kind of for the driver of MZM modulator single-ended drive, light emitting secondary module, light delivery module and dwdm system |
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| CN201910271831.5A CN109936410A (en) | 2019-04-04 | 2019-04-04 | It is a kind of for the driver of MZM modulator single-ended drive, light emitting secondary module, light delivery module and dwdm system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110692208A (en) * | 2019-08-13 | 2020-01-14 | 索尔思光电（成都）有限公司 | Optical transmitter sub-module and optical module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110692208A (en) * | 2019-08-13 | 2020-01-14 | 索尔思光电（成都）有限公司 | Optical transmitter sub-module and optical module |
| WO2021026773A1 (en) * | 2019-08-13 | 2021-02-18 | 索尔思光电（成都）有限公司 | Light emission sub-module and optical module |
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Address after: Room 511, South Building, No. 2 Chaofeng East Road, Yuhang Economic Development Zone, Hangzhou City, Zhejiang Province Applicant after: Hangzhou core hard Optoelectronic Technology Co., Ltd. Address before: 310018 Room 803, Building 20, Science Park Road, Baiyang Street, Hangzhou Economic and Technological Development Zone, Jianggan District, Hangzhou City, Zhejiang Province Applicant before: Hangzhou core hard Optoelectronic Technology Co., Ltd. |