CN110380790A - The reception device and its method of reseptance of extra low optical power receiver - Google Patents
The reception device and its method of reseptance of extra low optical power receiver Download PDFInfo
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- CN110380790A CN110380790A CN201910757170.7A CN201910757170A CN110380790A CN 110380790 A CN110380790 A CN 110380790A CN 201910757170 A CN201910757170 A CN 201910757170A CN 110380790 A CN110380790 A CN 110380790A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000006243 chemical reaction Methods 0.000 claims abstract description 37
- 238000013016 damping Methods 0.000 claims abstract description 29
- 239000000835 fiber Substances 0.000 claims abstract description 17
- 230000008054 signal transmission Effects 0.000 claims abstract description 16
- 239000003990 capacitor Substances 0.000 claims description 30
- 230000005611 electricity Effects 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 7
- 230000003321 amplification Effects 0.000 claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 claims description 2
- 230000005622 photoelectricity Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
- H04B10/697—Arrangements for reducing noise and distortion
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Abstract
The invention discloses the reception device of extra low optical power receiver and its method of reseptances, wherein, the method of reseptance of the reception device of extra low optical power receiver, it is the following steps are included: step S1: fiber-optic signal inputs photoelectric conversion circuit, step S2: photoelectric conversion circuit is by signal transmission through fiber to the first circuit for amplifying differential signal, amplified fiber-optic signal is transferred to adjustable damping circuit by the first balun by the S3: the first circuit for amplifying differential signal of step, step S4: the fiber-optic signal after decaying is transferred to the second circuit for amplifying differential signal by the second balun by adjustable damping circuit, the S5: the second circuit for amplifying differential signal of step exports amplified fiber-optic signal by third balun, the reception device and its method of reseptance of extra low optical power receiver disclosed by the invention, it uses circuit for amplifying differential signal, energy Influence of the temperature to circuit is enough eliminated, while improving fan-out capability, reduces non-linear distortion, realizes high output low distortion.
Description
Technical field
The invention belongs to ultra-low light power reception technique fields, and in particular to a kind of reception dress of extra low optical power receiver
Set the method for reseptance with a kind of reception device of extra low optical power receiver.
Background technique
In recent years, with the fast development of electronic technology being constantly progressive with fibre-optic transmission system (FOTS), for the people side of providing
Just, fast, accurately information is transmitted, the especially application of broadband network transmission fiber, opens high-speed channel for information transmitting.
Under normal conditions, when optical fiber transmits, transmission power is bigger, and transmission range is remoter；Due to consuming on the way, conveying distance is remoter,
Optical power then in conveying circuit end is smaller；In order to be connect well on farther ground under some transmitting optical power
Receive optical power, it is necessary to which the requirement of the entrance optical power of optical receiver apparatus is lower, therefore is further improved.
Summary of the invention
The main purpose of the present invention is to provide the reception device of extra low optical power receiver and its method of reseptances, use
At least two circuit for amplifying differential signal can eliminate influence of the temperature to circuit, while improve fan-out capability, reduce non-linear
High output low distortion is realized in distortion.
Another object of the present invention is to provide the reception device of extra low optical power receiver and its method of reseptances, use
Light-operated AGC (Automatic Gain Control, automatic growth control) mode reduces influence of the optical power change to output.
To achieve the above objectives, the present invention provides a kind of method of reseptance of the reception device of extra low optical power receiver,
The following steps are included:
Step S1: fiber-optic signal inputs photoelectric conversion circuit；
Step S2: the signal transmission through fiber that photoelectric conversion circuit converts process to adjustable damping circuit；
Step S3: the fiber-optic signal after decaying is transferred to the second differential signal by the second balun and put by adjustable damping circuit
Big circuit；
The S4: the second circuit for amplifying differential signal of step exports amplified fiber-optic signal by third balun.
Further preferred technical solution as above-mentioned technical proposal, the step S2 are further comprising the steps of:
Step S2.1.1: the signal transmission through fiber by conversion to the first differential signal is amplified electricity by photoelectric conversion circuit
Road；
Amplified fiber-optic signal is transferred to by the S2.1.2: the first circuit for amplifying differential signal of step by the first balun can
Adjust attenuator circuit；
Step S2.2.1: the signal transmission through fiber that photoelectric conversion circuit converts process to single chip circuit；
Step S2.2.2: single chip circuit is by signal transmission through fiber to adjustable damping circuit.
Further preferred technical solution as above-mentioned technical proposal, first circuit for amplifying differential signal is for resisting
Common mode interference and elimination temperature interference, second circuit for amplifying differential signal are dry for reducing non-linear distortion and elimination temperature
It disturbs.
The present invention provides a kind of reception device of extra low optical power receiver, including photoelectric conversion circuit, the first difference letter
Number amplifying circuit, adjustable damping circuit, the second circuit for amplifying differential signal, in which:
Fiber-optic signal inputs photoelectric conversion circuit；
Photoelectric conversion circuit is by the signal transmission through fiber by conversion to adjustable damping circuit；
Fiber-optic signal after decaying is transferred to the second circuit for amplifying differential signal by the second balun by adjustable damping circuit；
Second circuit for amplifying differential signal exports amplified fiber-optic signal by third balun.
Further preferred technical solution as above-mentioned technical proposal, the photoelectric conversion circuit include photoelectric conversion
First output end of device, the photoelectric converter is electrically connected by one end of inductance L6 and resistance R19, and the resistance R19 is remote
One end of one end and resistance R25 from the inductance L6 is electrically connected, and the connects end altogether of the resistance R19 and resistance R25 is simultaneously connected to
The second output terminal of resistance R21 and capacitor C27, the photoelectric converter are electrically connected by one end of inductance L1 and resistance R5,
The connects end altogether of a termination power of the resistance R5 far from the inductance L1, the inductance L1 and the resistance R5 pass through capacitor C4
Ground connection, the resistance R5 also pass through capacitor C2 far from one end of the inductance L1 and are grounded.
Further preferred technical solution as above-mentioned technical proposal, first circuit for amplifying differential signal include three
Pole pipe Q5, triode Q6, the collector of the triode Q5 are grounded by resistance R22, and the emitter of the triode Q5 is successively
It is grounded by resistance R23, capacitor C26, the connects end altogether of the resistance R23 and the capacitor C26 pass sequentially through resistance R24, resistance
The emitter of the R27 and triode Q6 is electrically connected, and the base stage of the triode Q6 and the triode Q5 are connected, and described three
The collector of pole pipe Q6 is grounded by resistance R26.
Further preferred technical solution as above-mentioned technical proposal, the adjustable damping circuit includes adjustable damping
The second output terminal of device, the adjustable attenuator is electrically connected by inductance L5 and resistance R17.
Further preferred technical solution as above-mentioned technical proposal, second circuit for amplifying differential signal include electricity
Feel L7, one end of the inductance L7 connects power supply by resistance R20, and the connects end altogether of the inductance L7 and resistance R20 passes through electricity
Hold C24 ground connection, the resistance R20 is grounded far from one end of the inductance L7 by capacitor C25.
Further preferred technical solution as above-mentioned technical proposal, the reception device of the extra low optical power receiver
It further include single chip circuit, fiber-optic signal also passes sequentially through the photoelectric conversion circuit, the single chip circuit, described adjustable declines
It is exported after powered down road, second circuit for amplifying differential signal.
Further preferred technical solution as above-mentioned technical proposal, the single chip circuit include single-chip microcontroller U3, list
Piece machine U4,2 pins of the single-chip microcontroller U3 pass sequentially through resistance R32, diode D5 ground connection, 3 pins of the single-chip microcontroller U3 according to
1 pipe secondary to be grounded by resistance R33, diode D6, that 7 pins of the single-chip microcontroller U3 pass through the resistance R28 and single-chip microcontroller U4
Foot is electrically connected, and 5 pins of the single-chip microcontroller U3 pass sequentially through resistance R34, resistance R35, resistance R36 and the single-chip microcontroller U4
5 pins are connected, and the resistance R34 and the connects end altogether of the resistance R35 are grounded by capacitor C34, the resistance R35 and the electricity
The connects end altogether of resistance R36 is grounded by capacitor C35, and the connects end altogether of 5 pins of the resistance R36 and the single-chip microcontroller U4 passes through capacitor
C36 ground connection.
Detailed description of the invention
Fig. 1 is the reception device of extra low optical power receiver of the invention and its flow chart of method of reseptance.
Fig. 2 is the reception device of extra low optical power receiver of the invention and its photoelectric conversion circuit figure of method of reseptance.
Fig. 3 is the reception device of extra low optical power receiver of the invention and its first differential signal amplification of method of reseptance
Circuit diagram.
Fig. 4 is the reception device of extra low optical power receiver of the invention and its adjustable damping circuit diagram of method of reseptance.
Fig. 5 is the reception device of extra low optical power receiver of the invention and its second differential signal amplification of method of reseptance
Circuit diagram.
Fig. 6 is the reception device of extra low optical power receiver of the invention and its single chip circuit figure of method of reseptance.
Appended drawing reference includes: 1, photoelectric conversion circuit；2, the first differential signal amplifier；3, the first balun；4, adjustable to decline
Powered down road；5, the second balun；6, the second circuit for amplifying differential signal；7, third balun；8, single chip circuit.
Specific embodiment
It is described below for disclosing the present invention so that those skilled in the art can be realized the present invention.It is excellent in being described below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.It defines in the following description
Basic principle of the invention can be applied to other embodiments, deformation scheme, improvement project, equivalent program and do not carry on the back
Other technologies scheme from the spirit and scope of the present invention.
It is reception device and its recipient of extra low optical power receiver of the invention to Fig. 6, Fig. 1 referring to Figure 1 of the drawings
The flow chart of method, Fig. 2 are the reception device of extra low optical power receiver of the invention and its photoelectric conversion circuit of method of reseptance
Figure, Fig. 3 is the reception device of extra low optical power receiver of the invention and its first circuit for amplifying differential signal of method of reseptance
Figure, Fig. 4 is the reception device of extra low optical power receiver of the invention and its adjustable damping circuit diagram of method of reseptance, Fig. 5 are
The reception device of extra low optical power receiver of the invention and its second circuit for amplifying differential signal figure of method of reseptance, Fig. 6 are
The reception device of extra low optical power receiver of the invention and its single chip circuit figure of method of reseptance.
The invention discloses the reception device of extra low optical power receiver and its method of reseptances, below with reference to preferred implementation
Example, is further described the specific embodiment of invention.
Preferred embodiment.
In this preferred embodiment of the invention, those skilled in the art should be noted that balun according to the present invention, list
Piece machine etc. can be by for the prior art.
The invention discloses a kind of method of reseptances of the reception device of extra low optical power receiver, comprising the following steps:
Step S1: fiber-optic signal inputs photoelectric conversion circuit 1；
Step S2: the signal transmission through fiber that photoelectric conversion circuit 1 converts process to adjustable damping circuit 4；
Step S3: the fiber-optic signal after decaying is transferred to the second differential signal by the second balun 3 by adjustable damping circuit 4
Amplifying circuit 6；
The S4: the second circuit for amplifying differential signal of step 6 exports amplified fiber-optic signal by third balun 7.
It is noted that the step S2 is further comprising the steps of:
Step S2.1.1: the signal transmission through fiber by conversion to the first differential signal is amplified electricity by photoelectric conversion circuit 1
Road 2；
Amplified fiber-optic signal is transferred to by the S2.1.2: the first circuit for amplifying differential signal of step 2 by the first balun 3
Adjustable damping circuit 4；
Step S2.2.1: the signal transmission through fiber that photoelectric conversion circuit 1 converts process to single chip circuit 8；
Step S2.2.2: single chip circuit 8 is by signal transmission through fiber to adjustable damping circuit 4.
Particularly, first circuit for amplifying differential signal 2 for anti-common mode interference and eliminates temperature interference, and described the
Two circuit for amplifying differential signal 6 are for reducing non-linear distortion and eliminate temperature interference.
The invention discloses a kind of reception devices of extra low optical power receiver, including photoelectric conversion circuit 1, the first difference
Signal amplification circuit 2, adjustable damping circuit 4, the second circuit for amplifying differential signal 6, in which:
Fiber-optic signal inputs photoelectric conversion circuit 1；
Photoelectric conversion circuit 1 is by the signal transmission through fiber by conversion to adjustable damping circuit 4；
Fiber-optic signal after decaying is transferred to the second differential signal amplification electricity by the second balun 5 by adjustable damping circuit 4
Road 6；
Second circuit for amplifying differential signal 6 exports amplified fiber-optic signal by third balun 7.
Particularly, the photoelectric conversion circuit 1 includes photoelectric converter A1, the first output of the photoelectric converter A1
End is electrically connected by one end of inductance L6 and resistance R19, the one end of the resistance R19 far from the inductance L6 and resistance R25
One end be electrically connected, the connects end altogether of the resistance R19 and resistance R25 are simultaneously connected to resistance R21 and capacitor C27, the photoelectricity turn
The second output terminal of parallel operation A1 is electrically connected by one end of inductance L1 and resistance R5, and the resistance R5 is far from the inductance L1's
The connects end altogether of one termination power, the inductance L1 and the resistance R5 is grounded by capacitor C4, and the resistance R5 is far from the electricity
One end of sense L1 also passes through capacitor C2 and is grounded.
More particularly, first circuit for amplifying differential signal 2 includes triode Q5, triode Q6, the triode
The collector of Q5 is grounded by resistance R22, and the emitter of the triode Q5 passes sequentially through resistance R23, capacitor C26 ground connection, institute
The connects end altogether for stating the resistance R23 and capacitor C26 passes sequentially through the emitter electricity of resistance R24, resistance R27 and the triode Q6
Property connection, the base stage of the triode Q6 and the triode Q5 connects, and the collector of the triode Q6 is connect by resistance R26
Ground.
Preferably, the adjustable damping circuit 4 includes adjustable attenuator A4, the second output terminal of the adjustable attenuator A4
It is electrically connected by inductance L5 and resistance R17.
Preferably, second circuit for amplifying differential signal 6 includes inductance L7, and one end of the inductance L7 passes through resistance
R20 connects power supply, and the connects end altogether of the inductance L7 and the resistance R20 are grounded by capacitor C24, and the resistance R20 is far from described
One end of inductance L7 is grounded by capacitor C25.
Further, the reception device of the extra low optical power receiver further includes single chip circuit 8, fiber-optic signal is also
Pass sequentially through the photoelectric conversion circuit 1, the one-chip computer module 8, the adjustable damping circuit 4, second differential signal
It is exported after amplifying circuit 6.
Preferably, the single chip circuit 8 includes single-chip microcontroller U3, single-chip microcontroller U4, and 2 pins of the single-chip microcontroller U3 successively lead to
Resistance R32, diode D5 ground connection are crossed, 3 pins of the single-chip microcontroller U3 pass sequentially through resistance R33, diode D6 ground connection, the list
7 pins of piece machine U3 are electrically connected by 1 pin of the resistance R28 and single-chip microcontroller U4, and 5 pins of the single-chip microcontroller U3 are successively
It is connected by 5 pins of resistance R34, resistance R35, resistance R36 and the single-chip microcontroller U4, the resistance R34 and the resistance R35
Connects end altogether be grounded by capacitor C34, the connects end altogether of the resistance R35 and the resistance R36 are grounded by capacitor C35, described
Resistance R36 and the connects end altogether of 5 pins of the single-chip microcontroller U4 are grounded by capacitor C36.
Preferably, the adjustable damping circuit 4 further includes resistance R6, and the resistance R6 connects power supply by resistance R3, described
The connects end altogether of resistance R6 and the resistance R3 are grounded by capacitor C3, and the connects end altogether of the resistance R6 and the resistance R3 pass through two
Pole pipe D1 ground connection.
It is noted that the technical characteristics such as balun, one-chip computer module that present patent application is related to should be considered as existing
There is technology, specific structure, working principle and the control mode that may relate to, the space layout mode of these technical characteristics are adopted
It with the conventional selection of this field, is not construed as where the inventive point of the invention patent, the invention patent is not done further
Specific expansion is described in detail.
For a person skilled in the art, technical solution documented by foregoing embodiments can still be repaired
Change or equivalent replacement of some of the technical features, it is all within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should be included in protection scope of the present invention.
Claims (10)
1. a kind of method of reseptance of the reception device of extra low optical power receiver, which comprises the following steps:
Step S1: fiber-optic signal inputs photoelectric conversion circuit；
Step S2: the signal transmission through fiber that photoelectric conversion circuit converts process to adjustable damping circuit；
Step S3: the fiber-optic signal after decaying is transferred to the second differential signal amplification electricity by the second balun by adjustable damping circuit
Road；
The S4: the second circuit for amplifying differential signal of step exports amplified fiber-optic signal by third balun.
2. a kind of method of reseptance of the reception device of extra low optical power receiver according to claim 1, which is characterized in that
The step S2 is further comprising the steps of:
Step S2.1.1: the signal transmission through fiber that photoelectric conversion circuit converts process to the first circuit for amplifying differential signal；
Amplified fiber-optic signal is transferred to adjustable decline by the first balun by the S2.1.2: the first circuit for amplifying differential signal of step
Powered down road；
Step S2.2.1: the signal transmission through fiber that photoelectric conversion circuit converts process to single chip circuit；
Step S2.2.2: single chip circuit is by signal transmission through fiber to adjustable damping circuit.
3. a kind of method of reseptance of the reception device of extra low optical power receiver according to claim 1, which is characterized in that
First circuit for amplifying differential signal is for anti-common mode interference and eliminates temperature interference, second circuit for amplifying differential signal
For reducing non-linear distortion and eliminate temperature interference.
4. a kind of reception device of extra low optical power receiver is used for reception optical fiber signal, which is characterized in that including photoelectric conversion
Circuit, the first circuit for amplifying differential signal, adjustable damping circuit, the second circuit for amplifying differential signal, in which:
Fiber-optic signal inputs photoelectric conversion circuit；
Photoelectric conversion circuit is by the signal transmission through fiber by conversion to adjustable damping circuit；
Fiber-optic signal after decaying is transferred to the second circuit for amplifying differential signal by the second balun by adjustable damping circuit；
Second circuit for amplifying differential signal exports amplified fiber-optic signal by third balun.
5. a kind of reception device of extra low optical power receiver according to claim 4, which is characterized in that the photoelectricity turns
Changing circuit includes photoelectric converter, and the first output end of the photoelectric converter is electrical by one end of inductance L6 and resistance R19
One end of connection, the one end of the resistance R19 far from the inductance L6 and resistance R25 are electrically connected, the resistance R19 and resistance
The connects end altogether of R25 is simultaneously connected to resistance R21 and capacitor C27, and the second output terminal of the photoelectric converter passes through inductance L1 and resistance
One end of R5 is electrically connected, a termination power of the resistance R5 far from the inductance L1, the inductance L1 and the resistance R5
Connects end altogether be grounded by capacitor C4, the resistance R5 also passes through capacitor C24 far from one end of the inductance L1 and is grounded.
6. a kind of reception device of extra low optical power receiver according to claim 4, which is characterized in that described first is poor
Sub-signal amplifying circuit includes triode Q5, triode Q6, and the collector of the triode Q5 is grounded by resistance R22, described
The emitter of triode Q5 passes sequentially through resistance R23, capacitor C26 ground connection, the connects end altogether of the resistance R23 and the capacitor C26
The emitter for passing sequentially through resistance R24, resistance R27 and the triode Q6 is electrically connected, the triode Q6 and three pole
The base stage of pipe Q5 is connected, and the collector of the triode Q6 is grounded by resistance R26.
7. a kind of reception device of extra low optical power receiver according to claim 4, which is characterized in that described adjustable to decline
Powered down road includes adjustable attenuator, and the second output terminal of the adjustable attenuator is electrically connected by inductance L5 and resistance R17.
8. a kind of reception device of extra low optical power receiver according to claim 4, which is characterized in that described second is poor
Sub-signal amplifying circuit includes inductance L7, and one end of the inductance L7 connects power supply, the inductance L7 and the electricity by resistance R20
The connects end altogether of resistance R20 is grounded by capacitor C24, and the resistance R20 is grounded far from one end of the inductance L7 by capacitor C25.
9. a kind of reception device of extra low optical power receiver according to claim 4, which is characterized in that the ultralow light
The reception device of power. recei ver further includes single chip circuit, and fiber-optic signal also passes sequentially through the photoelectric conversion circuit, described
It is exported after single chip circuit, the adjustable damping circuit, second circuit for amplifying differential signal.
10. a kind of reception device of extra low optical power receiver according to claim 9, which is characterized in that the monolithic
Electromechanical road includes single-chip microcontroller U3, single-chip microcontroller U4, and 2 pins of the single-chip microcontroller U3 pass sequentially through resistance R32, diode D5 ground connection,
3 pins of the single-chip microcontroller U3 pass sequentially through resistance R33, diode D6 ground connection, and 7 pins of the single-chip microcontroller U3 pass through resistance
1 pin of R28 and the single-chip microcontroller U4 are electrically connected, 5 pins of the single-chip microcontroller U3 pass sequentially through resistance R34, resistance R35,
5 pins of the resistance R36 and single-chip microcontroller U4 are connected, and the connects end altogether of the resistance R34 and the resistance R35 pass through capacitor C34
Ground connection, the connects end altogether of the resistance R35 and the resistance R36 are grounded by capacitor C35, the resistance R36 and the single-chip microcontroller
The connects end altogether of 5 pins of U4 is grounded by capacitor C36.
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| CN201910757170.7A CN110380790B (en) | 2019-08-16 | 2019-08-16 | Receiving device and receiving method of ultra-low optical power receiver |
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| CN201910757170.7A CN110380790B (en) | 2019-08-16 | 2019-08-16 | Receiving device and receiving method of ultra-low optical power receiver |
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| CN110380790B (en) | 2024-03-26 |
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