WO2016192430A1 - Procédé et appareil de commande d'amplification de signal optique de salve, et système d'amplification de signal optique de salve - Google Patents

Procédé et appareil de commande d'amplification de signal optique de salve, et système d'amplification de signal optique de salve Download PDF

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Publication number
WO2016192430A1
WO2016192430A1 PCT/CN2016/076072 CN2016076072W WO2016192430A1 WO 2016192430 A1 WO2016192430 A1 WO 2016192430A1 CN 2016076072 W CN2016076072 W CN 2016076072W WO 2016192430 A1 WO2016192430 A1 WO 2016192430A1
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Prior art keywords
optical signal
input optical
signal
input
value
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PCT/CN2016/076072
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English (en)
Chinese (zh)
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操日祥
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中兴通讯股份有限公司
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • 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
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • 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
    • H04B10/67—Optical arrangements in the receiver
    • H04B10/671—Optical arrangements in the receiver for controlling the input optical signal
    • H04B10/672—Optical arrangements in the receiver for controlling the input optical signal for controlling the power of the input optical signal
    • H04B10/673—Optical arrangements in the receiver for controlling the input optical signal for controlling the power of the input optical signal using an optical preamplifier

Definitions

  • This application relates to, but is not limited to, communication technology.
  • optical passive switching network consisting of optical packet switching (OPS) or optical burst switching (OBS) technologies (Optical passive) Network, PON for short, is being used more and more widely.
  • OPS optical packet switching
  • OBS optical burst switching
  • FIG. 1 is a schematic structural diagram of an optical amplifier of the related art. As shown in FIG. 1 , in the related art, an input optical signal is split into two sub-input optical signals by a second optical splitter, that is, a first sub-input light entering the photodetector PD2.
  • a second optical splitter that is, a first sub-input light entering the photodetector PD2.
  • the optical amplifier control module includes a system information acquisition module, a feedforward processing module, a clock module, a system control module, and a feedforward processing module to control the system.
  • each different portion of the burst optical signal after passing through the amplifier may experience different gains, thereby generating signal distortion. And cause a higher bit error rate.
  • This paper provides a burst optical signal amplification control method, device and burst optical signal amplification system. System to solve the problem of high bit error rate.
  • a burst optical signal amplification control method includes:
  • the first input optical signal comprising an optical signal before passing through the delay device
  • the delay duration comprising a duration from a start time of the first input optical signal to the pump output current, the second input optical signal including light passing through the delay signal;
  • the pump performs optical amplification processing on the second input optical signal by using the first feedback value to obtain an optical amplification output signal.
  • the method before determining the delay duration and the first value of the first input optical signal according to the first input optical signal, the method further includes:
  • the first working mode determines, according to the first input optical signal, a delay duration and a first value of the first input optical signal, where the first working mode includes a constant current a mode of operation or other mode that controls the output optical power of the pump to be constant;
  • the method further includes:
  • the method further includes:
  • the pumping of the optical amplifier performs optical amplification processing on the second input optical signal by using a first value after the end of the delay duration, and after obtaining the optical amplified output signal, the method further includes:
  • the current working mode is executed, and the current working mode includes the first working mode or the second working mode.
  • determining, according to the first input optical signal, a delay duration and a first value of the first input optical signal including:
  • Determining the delay duration and the first feedback value according to the first input optical signal by using any one of a BP neural network algorithm, a conventional look-up table method, or a polynomial fitting method.
  • the determining, by using a BP neural network algorithm, the delay duration and the first value according to the first input optical signal including:
  • a burst optical signal amplification control device includes:
  • Obtaining a module configured to: acquire a first input optical signal, where the first input optical signal includes an optical signal before passing through the delay device;
  • Determining a module configured to: determine, according to the first input optical signal, a delay duration and a first feedback value of the first input optical signal, where the first input value includes when the second input optical signal passes through the optical amplifier a current value of the pump output in the optical amplifier, the delay duration comprising a duration from a start time of the first input optical signal to the pump output current, the second input optical signal packet Including the optical signal after passing through the delay device;
  • the amplifying module is configured to: at an end time of the delay duration, control the pump to perform optical amplification processing on the second input optical signal by using the first feed value to obtain an optical amplified output signal.
  • the determining module is further configured to: determine, according to the first input optical signal, whether a power of the first input optical signal is within a range of a first threshold and a second threshold, the first threshold Less than the second threshold; if not, performing the determining, according to the first input optical signal, a delay duration and a first feedback value of the first input optical signal in the first working mode,
  • the first mode of operation includes a constant current mode of operation or other mode that controls the output optical power of the pump to be constant; if so, performing the first input optical signal in the second mode of operation to determine the first input
  • the delay time of the optical signal and the first feedback value, and the second operation mode includes a constant gain operation mode or a constant current operation mode.
  • the determining module is further configured to: determine, according to a power difference between the optical amplified output signal and the target optical signal, a second value of the amplifier, where the second value includes a next second The pumped output current value as the input optical signal passes through the optical amplifier.
  • the determining module is further configured to: compare the first input optical signal with the last first input optical signal, and determine between the first input optical signal and the last first input optical signal. Whether the power difference is greater than the third threshold; if yes, returning to perform determining the delay duration and the first value of the first input optical signal according to the first input optical signal; if not, maintaining the current system The state is unchanged, and the operation in the second working mode is continued.
  • the determining module is further configured to: compare the optical amplified output signal with a fourth threshold, determine whether the power of the output optical signal is greater than the fourth threshold; if greater, return to the system An initialization state; if less than, executing a current working mode, the current working mode including the first working mode or the second working mode.
  • the determining module is further configured to: determine, according to the first input optical signal, a delay time duration by using any one of a BP neural network algorithm, a traditional look-up table method, or a polynomial fitting method. And the first feed value.
  • the determining module is configured to: determine the extension according to the first input optical signal power, the last first input optical signal power, the current temperature, and the first output of the last output. The duration and the first value.
  • a burst optical signal amplifying system includes: an optical amplifying controller, a delayer and an optical amplifier, wherein the delayer is connected to the optical amplifier,
  • the delay device is configured to: perform a delay processing of the first input optical signal for a delay time duration, and output a second input optical signal;
  • the optical amplifying controller is respectively connected to the delay device and the optical amplifier, and configured to: determine the delay time and the first time for the first input optical signal according to the first input optical signal And a first value that includes a current value of a pump output of the optical amplifier when the second input optical signal passes through the optical amplifier, the delay duration including a start time of the first input optical signal The length of time to which the pump outputs current;
  • the optical amplifier is configured to perform optical amplification processing on the second input optical signal by using the first feed value at an end time of the delay duration to obtain an optical amplification output signal.
  • the optical amplification controller is further configured to: determine, according to the first input optical signal, whether a power of the first input optical signal is within a range of a first threshold and a second threshold, where a threshold is less than the second threshold; if not, performing the determining, according to the first input optical signal, a delay duration and a first feedback value of the first input optical signal in a first working mode,
  • the first mode of operation includes a constant current mode of operation or other mode that controls the output optical power of the pump to be constant; if so, performing the determining according to the first input optical signal in the second mode of operation a delay time of the input optical signal and a first feedback mode, the second operational mode comprising a constant gain operation mode or a constant current operation mode.
  • the optical amplification controller is further configured to: determine, according to a power difference between the optical amplification output signal and the target optical signal, a second value of the amplifier, where the second value includes the next time The pumped output current value as the second input optical signal passes through the optical amplifier.
  • the optical amplification controller is further configured to: compare the first input optical signal with the last first input optical signal, and determine the first input optical signal and the last first input optical signal. Whether the power difference between the power is greater than the third threshold; if yes, returning to perform determining the delay time and the first value of the first input optical signal according to the first input optical signal; if not, maintaining The current state of the system remains unchanged, and the operation in the second working mode is continued.
  • the optical amplification controller is further configured to: compare the optical amplification output signal with a fourth threshold, determine whether the power of the output optical signal is greater than the fourth threshold; if greater than, return The initialization state to the system; if less than, the current working mode is executed, and the current working mode includes the first working mode or the second working mode.
  • the optical amplification controller is further configured to: determine, according to the first input optical signal, any one of a BP neural network algorithm, a traditional look-up table method, or a polynomial fitting method to determine the delay The duration and the first value.
  • the optical amplification controller is configured to: determine the extension according to the first input optical signal power, the last first input optical signal power, the current temperature, and the first output of the previous output. The duration and the first value.
  • the method further includes: an optical burst amplifying signal receiver, wherein the optical burst amplifying signal receiver is connected to the optical amplifier;
  • the optical burst amplifying signal receiver includes: a filter
  • the filter is configured to perform filtering processing on the optical amplified output signal.
  • the optical burst amplification signal receiver further includes: a photoelectric converter and a sudden transimpedance amplifier, wherein the photoelectric converter is connected to the sudden transimpedance amplifier, and the photoelectric converter is connected to the optical amplifier The burst transimpedance amplifier is coupled to the filter;
  • the photoelectric converter is configured to: convert the optical amplified output signal from an optical signal into a current signal;
  • the burst transimpedance amplifier is configured to: amplify and convert a current signal output by the photoelectric converter into a voltage signal.
  • a computer readable storage medium storing computer executable instructions for performing the method of any of the above.
  • the embodiment of the present invention includes acquiring a first input optical signal, where the first input optical signal includes an optical signal before passing through the delay device, and determining, according to the first input optical signal, the first Inputting a delay duration of the optical signal and a first feedback value, the first feedback value including a current value of a pump output of the optical amplifier when the second input optical signal passes through the optical amplifier, the delay duration including a duration of the first input optical signal timing to a duration of the pump output current, the second input optical signal comprising an optical signal after passing the delay; at an end of the delay duration,
  • the pump performs optical amplification processing on the second input optical signal by using the first feed value to obtain an optical amplified output signal.
  • the delay of the first input optical signal is performed, and the extended duration can be used for accurately calculating the first feedback value.
  • the control of the pump output current in the optical amplifier reduces the distortion of the optical signal. And reduce the occurrence of bit error rate.
  • 1 is a schematic structural view of an optical amplifier of the related art
  • FIG. 2 is a schematic flow chart of an embodiment of a burst optical signal amplification control method according to the present invention
  • FIG. 3 is a schematic structural diagram of an embodiment of a burst optical signal amplification control apparatus according to the present invention.
  • FIG. 4 is a schematic structural diagram of an embodiment of a burst optical signal amplifying system according to the present invention.
  • FIG. 5 is a schematic structural diagram of a second embodiment of a burst optical signal amplifying system according to the present invention.
  • FIG. 6 is a schematic structural diagram of three embodiments of a burst optical signal amplifying system according to the present invention.
  • FIG. 7 is a schematic structural diagram of a filter of an embodiment of a burst optical signal amplifying system according to the present invention.
  • FIG. 8 is a schematic diagram of a frequency response curve of a filter according to an embodiment of a burst optical signal amplifying system of the present invention.
  • the burst optical signal amplification control method provided by the embodiment of the present invention can be applied to an optical switching system. Or when the optical signal is amplified in the optical passive access network.
  • the burst optical signal amplification control method provided in this embodiment may be performed by a burst optical signal amplification control device, which may be integrated in the optical amplification controller or separately set, wherein the burst The optical signal amplification control device can be implemented in a software and/or hardware manner.
  • the burst optical signal amplification control method and apparatus and the burst optical signal amplification system provided in this embodiment will be described in detail below.
  • FIG. 2 is a schematic flowchart of an embodiment of a method for amplifying a burst optical signal according to an embodiment of the present invention.
  • the execution body of the method of the present embodiment may be a burst optical signal amplification control device.
  • the method comprises the following steps:
  • Step 201 Acquire a first input optical signal.
  • the first input optical signal may include an optical signal before passing through the delay device
  • Step 202 Determine, according to the first input optical signal, a delay duration and a first feedback value of the first input optical signal.
  • the first feedback value includes a current value of a pump output of the optical amplifier when the second input optical signal passes through the optical amplifier
  • the delay duration includes time counting the first input optical signal. a time from the start of the time to the pump output current, the second input optical signal comprising an optical signal after passing through the delay;
  • Step 203 At the end time of the delay duration, the pump performs optical amplification processing on the second input optical signal by using the first feed value to obtain an optical amplification output signal.
  • the first input optical signal is subjected to a delay of the delay time, and then enters the optical amplifier for optical amplification processing, and finally the optical burst signal output, that is, the optical amplification output signal is obtained.
  • the time from the moment when the feedforward event is triggered to the time when the feedforward is applied is controllable, and the time is longer, the application of the feedforward can be performed accurately, and the conventional light is
  • the feedforward application of the amplifier always lags behind the change of the signal, and in order to ensure the timeliness of the feedforward application, the feedforward calculation generally needs to be as simple and fast as possible, and the accuracy cannot meet the burst optical signal amplification requirement.
  • the first input optical signal is acquired, the first input optical signal includes an optical signal before passing through the delay device; and the extension of the first input optical signal is determined according to the first input optical signal.
  • a current value of the pump output in the optical amplifier the delay duration includes a duration from a start time of the first input optical signal to the pump output current
  • the second input optical signal includes An optical signal after the delay device; at the end time of the delay time period, the pump performs optical amplification processing on the second input optical signal by using the first feedback value to obtain an optical amplification output signal.
  • the delay of the first input optical signal is performed, and the extended duration can be used for accurately calculating the first feedback value.
  • the control of the pump output current in the optical amplifier reduces the distortion of the optical signal. And reduce the occurrence of bit error rate.
  • the method may further include:
  • the first working mode determines, according to the first input optical signal, a delay duration and a first value of the first input optical signal, where the first working mode includes a constant current a mode of operation or other mode that controls the output optical power of the pump to be constant;
  • the method further includes:
  • the method further includes:
  • the pump of the optical amplifier performs optical amplification processing on the second input optical signal by using the first feedback value, and after obtaining the optical amplified output signal, :
  • the current working mode is executed, and the current working mode includes the first working mode or the second working mode.
  • Determining the delay duration and the first value of the first input optical signal according to the first input optical signal may include:
  • Determining the delay duration and the first feedback value according to the first input optical signal by using any one of a BP neural network algorithm, a conventional look-up table method, or a polynomial fitting method.
  • the determining, by the BP neural network algorithm, the delay duration and the first feed value according to the first input optical signal including:
  • the apparatus of this embodiment may include: an obtaining module 31, a determining module 32, and an amplifying module 33, where
  • the obtaining module 31 is configured to: acquire a first input optical signal, where the first input optical signal includes an optical signal before passing through the delay device;
  • the determining module 32 is configured to: determine, according to the first input optical signal, a delay duration and a first feedback value for the first input optical signal, where the first input value includes the second input optical signal through the optical amplifier And a current value of the pump output in the optical amplifier, the delay duration includes a duration from a start time of the first input optical signal to the pump output current, and the second input optical signal includes Passing the optical signal after the delay;
  • the amplification module 33 is configured to: control the pump to be adopted at an end time of the delay duration
  • the first input value optically amplifies the second input optical signal to obtain an optical amplified output signal.
  • the first input optical signal is acquired, the first input optical signal includes an optical signal before passing through the delay device; and the extension of the first input optical signal is determined according to the first input optical signal. a duration and a first value, the first value comprising a current value of a pump output of the optical amplifier when the second input optical signal passes through the optical amplifier, the delay duration comprising the first input optical signal a timing of the timing of the pump output current, the second input optical signal comprising an optical signal after passing through the delay; at the end of the delay duration, the pump adopts the
  • the second input optical signal is optically amplified by a feed to obtain an optically amplified output signal.
  • the delay of the first input optical signal is performed, and the extended duration can be used for accurately calculating the first feedback value.
  • the control of the pump output current in the optical amplifier reduces the distortion of the optical signal. And reduce the occurrence of bit error rate.
  • the determining module is further configured to: determine, according to the first input optical signal, whether the power of the first input optical signal is within a range of a first threshold and a second threshold, where the first threshold is smaller than the first a second threshold; if not, performing, in the first working mode, determining, according to the first input optical signal, a delay duration and a first value of the first input optical signal, the first working mode Included in a constant current mode of operation or other mode that controls the output optical power of the pump to be constant; if so, performing the derivation of the first input optical signal based on the first input optical signal in the second operational mode
  • the duration of time and the first value of the second operating mode include a constant gain mode of operation or a constant current mode of operation.
  • the determining module 32 is further configured to: determine, according to a power difference between the optical amplified output signal and the target optical signal, a second value of the amplifier, the second value Including the output current value of the pump when the second input optical signal passes through the optical amplifier.
  • the determining module 32 is further configured to: compare the first input optical signal with the last first input optical signal, determine the first input optical signal and the first time Whether the difference between the input optical signals is greater than a third threshold; if yes, returning to perform determining a delay duration and a first feedback value for the first input optical signal according to the first input optical signal; if not, Then, the current state of the system is kept unchanged, and the operation in the second working mode is continued.
  • the determining module 32 is further configured to: compare the optical amplified output signal with a fourth threshold, and determine whether the power of the output optical signal is greater than the fourth threshold; Returning to the initialization state of the system; if less, executing the current working mode, the current working mode including the first working mode or the second working mode.
  • the determining module 32 is further configured to: determine, according to the first input optical signal, any one of a BP neural network algorithm, a traditional table lookup method, or a polynomial fitting method. The delay duration and the first feedback value.
  • the determining module is configured to: determine, according to the first input optical signal power, the last first input optical signal power, the current temperature, and the first output of the previous output. The delay time and the first value are described.
  • the system of this embodiment may include: an optical amplifying controller 41, a delayer 42 and an optical amplifier 43, the delay The device 42 is connected to the optical amplifier 43
  • the delay device 42 is configured to: perform a delay processing of the first input optical signal for a delay time duration, and output a second input optical signal;
  • the delay device may be an optical fiber having a length greater than 20 meters or an optical waveguide capable of delaying the propagation of the optical signal, and the burst optical signal may cause a delay of more than 100 nanoseconds. Time.
  • the optical amplification controller 41 is respectively connected to the delayer 42 and the optical amplifier 43 and configured to: determine the delay time of the first input optical signal according to the first input optical signal And a first value, the first value includes a current value of a pump output of the optical amplifier when the second input optical signal passes through the optical amplifier, the delay duration including timing the first input optical signal The time from the start of the moment to the pump output current.
  • the optical amplifier is further subjected to optical amplification processing, and finally the optical burst signal output, that is, the optical amplification output signal is obtained.
  • the time from the moment when the feedforward event is triggered to the time when the feedforward is applied is controllable, and the time is longer, the application of the feedforward can be performed accurately, and the conventional light is
  • the amplifier feedforward application always lags behind the signal change, while ensuring the feedforward application Timeliness, feedforward calculations generally need to be as simple and fast as possible, and the accuracy cannot meet the burst optical signal amplification requirements.
  • the optical amplifier 43 is configured to perform optical amplification processing on the second input optical signal by using the first feedback value at an end time of the delay duration to obtain an optical amplification output signal.
  • the first input optical signal is acquired, the first input optical signal includes an optical signal before passing through the delay device; and the extension of the first input optical signal is determined according to the first input optical signal. a duration and a first value, the first value comprising a current value of a pump output of the optical amplifier when the second input optical signal passes through the optical amplifier, the delay duration comprising the first input optical signal a timing of the timing of the pump output current, the second input optical signal comprising an optical signal after passing through the delay; at the end of the delay duration, the pump adopts the
  • the second input optical signal is optically amplified by a feed to obtain an optically amplified output signal.
  • the delay of the first input optical signal is performed, and the extended duration can be used for accurately calculating the first feedback value.
  • the control of the pump output current in the optical amplifier reduces the distortion of the optical signal. And reduce the occurrence of bit error rate.
  • FIG. 5 is a schematic structural diagram of a second embodiment of a burst optical signal amplifying system according to the present invention.
  • the system of this embodiment may further include: an optical amplifier controller and a first optical splitter.
  • the first input optical signal passes through the first optical splitter and is divided into two parts, a part of the optical signal enters the first photodetector PD1, and the other part passes through a delay device, and then enters the second optical splitter, and is further divided into two parts.
  • the burst optical signal is amplified, and then enters the third splitter , divided into 2 parts, part into the third photodetector PD3, another part of the output, optical amplifier controller control and interaction with the system, including system information acquisition module, feedforward processing module, clock module, system control module, feedforward Processing module.
  • the bandwidth of PD1 is greater than 100MHz, and the response time is about 200ns ⁇ 1us, which can be determined according to different application scenarios and the gain saturation and gain recovery time of the rare earth doped medium used.
  • 300 ns is more suitable, and it can be realized by oversampling and multiple acquisition and averaging.
  • the bandwidth of PD2 and PD3 should be greater than 10MHz.
  • the time should be about 1us, which can be achieved by oversampling and multiple acquisition and averaging.
  • the delay device can be a length of 20m ⁇ 10km fiber or a length of any optical waveguide capable of delaying the propagation of the optical signal, resulting in a delay of about 100ns ⁇ 50us.
  • the first beam splitter, the photodetector PD1, the delayer, or an integrated device of any combination of their functions is also an embodiment of the present invention, and the optical burst delay unit composed of them is characterized by a burst
  • the optical signal through it will cause a delay and the power of the burst optical signal can be detected before the delay.
  • the rare earth doped medium can be an erbium doped fiber or any other rare earth doped medium.
  • the optical amplification controller is further configured to: determine, according to the first input optical signal, whether the power of the first input optical signal is within a range of a first threshold and a second threshold, Determining that the first threshold is smaller than the second threshold; if not, performing the determining, according to the first input optical signal, the delay duration and the first feed of the first input optical signal in the first working mode a value, the first mode of operation comprising a constant current mode of operation or other mode that controls the output optical power of the pump to be constant; if so, performing the determining according to the first input optical signal in a constant gain mode of operation
  • the delay time of the first input optical signal and the first feedback value, and the second operation mode includes a constant gain operation mode or a constant current operation mode.
  • the optical amplification controller is further configured to: determine a second value of the amplifier according to a power difference between the optical amplification output signal and the target optical signal, the second feed The value includes the value of the pumped output current for the next time the second input optical signal passes through the optical amplifier.
  • the optical amplification controller is further configured to: compare the first input optical signal with a previous first input optical signal, and determine the first input optical signal. Whether the power difference between the last input optical signal and the last time is greater than a third threshold; if yes, returning to perform determining, according to the first input optical signal, a delay duration and a first time for the first input optical signal The value is fed; if not, the current state of the system is maintained, and the operation in the second working mode is continued.
  • the optical amplification controller is further configured to: compare the optical amplification output signal with a fourth threshold, and determine whether the power of the output optical signal is greater than the fourth threshold; If it is greater than, it returns to the initialization state of the system; if it is less than, the current working mode is executed, and the current working mode includes the first working mode or the second working mode.
  • the optical amplification controller is further configured to: adopt any one of a BP neural network algorithm, a traditional look-up table method, or a polynomial fitting method according to the first input optical signal.
  • a device determining the delay duration and the first feedback.
  • the optical amplification controller is configured to: determine the delay duration and the location according to the first input optical signal power, the last first input optical signal power, the current temperature, and the first output of the previous output. The first value is described.
  • FIG. 6 is a schematic structural diagram of a third embodiment of a burst optical signal amplifying system according to the present invention.
  • an optical burst amplifying signal receiver the optical burst amplifying signal may be further included.
  • a receiver is coupled to the optical amplifier, wherein the optical burst amplifying signal receiver may include a filter 61, a photoelectric converter 62, a burst transimpedance amplifier 63, and a limiting amplifier 64 connected in sequence.
  • the filter 61 is configured to perform filtering processing on the optical amplified output signal.
  • the photoelectric converter 62 is connected to the sudden transimpedance amplifier 63, the photoelectric converter 62 is connected to the optical amplifier 33, and the sudden transimpedance amplifier 63 is connected to the filter 61, the filtering
  • the unit 61 is connected to the limiting amplifier 64.
  • the photoelectric converter 62 is configured to convert the optical amplified output signal from an optical signal into a current signal
  • the burst transimpedance amplifier 63 is configured to: amplify and convert the current signal output by the photoelectric converter 62 into a voltage signal;
  • the limiting amplifier 64 is configured to amplify the voltage signal output by the burst transimpedance amplifier 63 to obtain a constant amplitude output voltage signal.
  • the filter may be a high-pass filter having a cutoff frequency between 100 kHz and 20 MHz.
  • the signal frequency is greater than the cutoff frequency, the signal is allowed to pass.
  • the signal frequency is less than the cutoff frequency, the signal is blocked. by.
  • FIG. 7 is a schematic structural diagram of a filter of an embodiment of a burst optical signal amplifying system according to the present invention
  • FIG. 8 is a schematic diagram of a frequency response curve of a filter according to an embodiment of the burst optical signal amplifying system of the present invention
  • a high-pass filter which may be an RC circuit as shown in FIG. 7, having a frequency response curve as shown in FIG. 8, f0 between 100 kHz and 20 MHz, when the signal frequency f>f0
  • the signal is allowed to pass, when the signal frequency f ⁇ f0, the signal is prevented from passing.
  • the amplified output optical signal outputted by the embodiment of the present invention is a slowly varying signal of a small gain swing
  • the optical amplified output signal passes through the photoelectric converter 62, and after entering the high-pass filter 61 after the sudden transimpedance amplifier 63, it is corrected.
  • the output amplified optical signal is a slowly varying signal with a small gain swing.
  • the limiting amplifier is used to maximize the original equal amplitude signal.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • the device/function module/functional unit in the above embodiment When the device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the implementation of the invention realizes delaying and then amplifying the first input optical signal, and the extended duration can be used for accurate calculation of the first feedback value. Moreover, the control of the pump output current in the optical amplifier reduces the distortion of the optical signal and reduces the generation of the bit error rate.

Abstract

L'invention concerne un procédé et un appareil de commande d'amplification de signal optique de salve, et un système d'amplification de signal optique de salve. Le procédé consiste à : acquérir un premier signal optique d'entrée, lequel premier signal optique d'entrée comprend un signal optique qui ne passe pas par un retardateur temporel ; déterminer une durée de temporisation et une première valeur de rétroaction du premier signal optique d'entrée selon le premier signal optique d'entrée, laquelle première valeur de rétroaction comprend une sortie de valeur de courant par une pompe dans un amplificateur optique lorsqu'un second signal optique d'entrée passe par l'amplificateur optique, la durée de temporisation comprend une durée allant du moment de début où le premier signal optique d'entrée est synchronisé au moment où la pompe délivre en sortie un courant, et le second signal optique d'entrée comprend un signal optique qui est passé par le retardateur temporel ; et au moment de la fin de la durée de temporisation, adopter par la pompe la première valeur de rétroaction pour effectuer un traitement d'amplification optique sur le second signal optique d'entrée, de manière à obtenir un signal de sortie d'amplification optique.
PCT/CN2016/076072 2015-06-01 2016-03-10 Procédé et appareil de commande d'amplification de signal optique de salve, et système d'amplification de signal optique de salve WO2016192430A1 (fr)

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JP2001352297A (ja) * 2000-06-07 2001-12-21 Matsushita Electric Ind Co Ltd 光増幅装置
EP1221746A2 (fr) * 2000-12-26 2002-07-10 Sumitomo Electric Industries, Ltd. Amplificateur optique et module à fibre optique
CN1574712A (zh) * 2003-06-09 2005-02-02 三星电子株式会社 无源光网络中的光功率均衡器
US20090232501A1 (en) * 2008-03-11 2009-09-17 Futurewei Technologies, Inc. Adaptive Injection Current Controlled Burst Mode SOA for Long and Wide Reach High Speed PON
CN102035596A (zh) * 2009-09-25 2011-04-27 中兴通讯股份有限公司 一种光信号的放大和动态调整方法及装置

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JP2001352297A (ja) * 2000-06-07 2001-12-21 Matsushita Electric Ind Co Ltd 光増幅装置
EP1221746A2 (fr) * 2000-12-26 2002-07-10 Sumitomo Electric Industries, Ltd. Amplificateur optique et module à fibre optique
CN1574712A (zh) * 2003-06-09 2005-02-02 三星电子株式会社 无源光网络中的光功率均衡器
US20090232501A1 (en) * 2008-03-11 2009-09-17 Futurewei Technologies, Inc. Adaptive Injection Current Controlled Burst Mode SOA for Long and Wide Reach High Speed PON
CN102035596A (zh) * 2009-09-25 2011-04-27 中兴通讯股份有限公司 一种光信号的放大和动态调整方法及装置

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