CN217008470U - Electro-optical modulation driver applied to teaching experiment demonstration - Google Patents
Electro-optical modulation driver applied to teaching experiment demonstration Download PDFInfo
- Publication number
- CN217008470U CN217008470U CN202123285299.4U CN202123285299U CN217008470U CN 217008470 U CN217008470 U CN 217008470U CN 202123285299 U CN202123285299 U CN 202123285299U CN 217008470 U CN217008470 U CN 217008470U
- Authority
- CN
- China
- Prior art keywords
- driver
- modulation
- electro
- experiment
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The utility model provides an electro-optical modulation driver applied to teaching experiment demonstration, and particularly relates to the field of electro-optical modulator drivers. The method comprises the following steps: the driver is provided with the external audio input signal interface, and the driver is provided with the direct current and alternating current modulation switch for switching direct current modulation and alternating current modulation. Use this set of experimental apparatus, concentrate on a driver with the multiple experiment drive signal output function of different grade type, and set up a key switching function, very big improvement the student experiment efficiency integrated number input/output signal function that detects simultaneously, increased the operability and the interest of experiment, more be favorable to the student to understand the principle of electro-optic modulation phenomenon.
Description
Technical Field
The utility model relates to a device in the field of electro-optical modulator drivers, in particular to an electro-optical modulator driver applied to teaching experiment demonstration.
Background
Electro-optical modulators are an important component of optical communication systems. The wide bandwidth, low voltage and low chirp characteristics of Mach-zehnder (MZM) electro-optic modulators make them widely used in current optical communication systems. The traditional electro-optical crystal driver applied to the electro-optical modulator is biased to be applied, cannot display the waveform of a modulation signal and the change of a driving signal, cannot observe the modulation signal demodulation process, and is not suitable for teaching application.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an electro-optical modulation driver applied to teaching experiment demonstration to solve the problems in the background technology. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the utility model are described in detail in the following.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides an electro-optical modulation driver applied to teaching experiment demonstration, which comprises: adjustable high voltage power supply, adjustable amplitude signal source, external audio input signal interface, direct current modulation change over switch, sinusoidal audio frequency modulation switch and optical power meter, driver configuration adjustable high voltage power supply and adjustable amplitude signal source, the driver is provided with external audio input signal interface, the driver configuration is used for direct current modulation and the direct current modulation change over switch who exchanges the modulation switching, the driver configuration is used for sinusoidal and the sinusoidal audio frequency modulation switch that the modulation switches, the driver configuration has the Bayonet Nut Connector interface that sinusoidal signal and audio signal detected, the driver embeds there is the optical power meter who is arranged in the experiment to measure output optical power.
Preferably, the adjustable high-voltage power supply can provide 0v-1000v adjustable high-voltage direct-current driving signals and is provided with a voltage adjusting knob and a digital display voltmeter.
Preferably, the external audio input signal interface is a 3.5mm external audio signal interface.
The electro-optical modulation driver applied to the teaching experiment demonstration provided by the utility model has the beneficial effects that: use this set of experimental apparatus, concentrate on a driver with the multiple experiment drive signal output function of different grade type, and set up a key switching function, very big improvement student's experimental efficiency, the function that integrated input/output signal detected simultaneously has increased the operability and the interest of experiment, more is favorable to the student to understand the principle of electro-optic modulation phenomenon.
Drawings
Fig. 1 is a functional block diagram of an electro-optic crystal driver applied to an electro-optic modulation driver for teaching experiment demonstration according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The following describes in detail a specific embodiment of the present invention with reference to the drawings. In the drawings, the same reference numerals indicate the same or corresponding features. The figures are merely schematic representations, which are not necessarily drawn to scale.
Referring to fig. 1, an electro-optic modulation driver for teaching experimental demonstrations is shown, including: an adjustable high-voltage power supply, an adjustable amplitude signal source, an external audio input signal interface, the driver is provided with an external audio input signal interface, an audio signal can output an audio coupling driving signal through an audio signal transformer, the driver is provided with a direct current and alternating current modulation change-over switch used for direct current modulation and alternating current modulation switching, the driver is provided with a sinusoidal audio modulation switch used for sine and audio modulation switching, the sinusoidal signal can output a sinusoidal coupling driving signal through the sinusoidal signal transformer, the driver is provided with a Bayonet Nut Connector interface used for detecting the sinusoidal signal and the audio signal, and the driver is internally provided with an optical power meter used for measuring output optical power in an experiment.
The 1000V adjustable high-voltage module can provide 0V-1000V adjustable high-voltage direct-current driving signals through direct-current voltage adjustment, and the adjustable high-voltage power supply is provided with a voltage adjusting knob and a digital display voltmeter.
The external audio input signal interface is a 3.5mm external audio signal interface.
The device can provide 0V-1000V adjustable high driving voltage, and students can correspondingly measure output light intensity signals to draw a direct current modulation signal curve of the electro-optic crystal through adjusting the driving voltage. The device can provide a 1kHz sinusoidal signal amplitude-modulated signal source, so that students can observe the modulation rule of the alternating current signal by adjusting the amplitude of the sinusoidal signal. The device can provide an external audio input signal interface, amplifies a voice signal through an internal circuit and then demodulates the voice signal through a laser detector to play the voice signal through a sound box. The built-in optical power meter of this device, the measurement output optical power in the experiment of being convenient for.
And a 0v-1000v adjustable (configured with a voltage adjusting knob and a digital display voltmeter) high-voltage direct-current driving signal is provided, so that students can conveniently measure the crystal direct-current characteristic curve. And a 1kHz sinusoidal amplitude-modulated signal is provided (an amplitude-modulated knob is configured), so that students can conveniently observe the modulation rule of the alternating current signal. And 3.5mm of external audio signal interface is configured, so that a voice signal modulation experiment can be carried out. And a sinusoidal signal and an audio signal detection BNC interface are configured, so that students can observe input signals conveniently and compare modulation signals. Configuring a direct current modulation and alternating current modulation change-over switch; configuring a sine and audio modulation one-key switch. The student of being convenient for does different experiments under the condition of not changing the wire rod and switches the operation, provides experimental efficiency. An optical power meter is arranged in the optical fiber, so that students can monitor the modulation condition at any time.
Use this set of experimental apparatus, concentrate on a driver with the multiple experiment drive signal output function of different grade type, and set up a key switching function, very big improvement the student experiment efficiency integrated number input/output signal function that detects simultaneously, increased the operability and the interest of experiment, more be favorable to the student to understand the principle of electro-optic modulation phenomenon.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. An electro-optic modulation driver applied to teaching experiment demonstration is characterized by comprising: an adjustable high-voltage power supply, an adjustable amplitude signal source, an external audio input signal interface, a direct current and alternating current modulation change-over switch, a sine audio modulation switch and an optical power meter, wherein,
the driver is configured with adjustable high voltage power supply and adjustable amplitude signal source, the driver is provided with external audio input signal interface, the driver is configured with the direct current modulation change over switch that is used for direct current modulation and alternating current modulation to switch, the driver is configured with the sinusoidal audio modulation switch that is used for sine and audio modulation to switch, the driver is configured with the Bayonet Nut Connector interface that sinusoidal signal and audio signal detected, the driver embeds there is the optical power meter who is used for measuring output optical power in the experiment.
2. Electro-optical modulation driver applied to teaching experiment demonstrations according to claim 1, wherein: the adjustable high-voltage power supply can provide 0-1000 v adjustable high-voltage direct-current driving signals and is provided with a voltage adjusting knob and a digital display voltmeter.
3. Electro-optic modulation driver applied to teaching experiment demonstration according to claim 1, characterized in that: the external audio input signal interface is a 3.5mm external audio signal interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123285299.4U CN217008470U (en) | 2021-12-24 | 2021-12-24 | Electro-optical modulation driver applied to teaching experiment demonstration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123285299.4U CN217008470U (en) | 2021-12-24 | 2021-12-24 | Electro-optical modulation driver applied to teaching experiment demonstration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217008470U true CN217008470U (en) | 2022-07-19 |
Family
ID=82387734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123285299.4U Active CN217008470U (en) | 2021-12-24 | 2021-12-24 | Electro-optical modulation driver applied to teaching experiment demonstration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217008470U (en) |
-
2021
- 2021-12-24 CN CN202123285299.4U patent/CN217008470U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2927042Y (en) | Electro-optic modulating experimental equipment | |
| TW200622995A (en) | Liquid crystal display and driving method | |
| JP2902545B2 (en) | Optical switching node performance monitoring method and apparatus | |
| CN217008470U (en) | Electro-optical modulation driver applied to teaching experiment demonstration | |
| CN106301554A (en) | The adjustment method of a kind of MZI electrooptical modulator quiescent potential in parallel and debugging apparatus | |
| CN106782004B (en) | A kind of instruments used for education based on optical fibre gyro | |
| Gingl et al. | Review of sound card photogates | |
| WO2021128471A1 (en) | Detection device and detection method for measuring flicker degree of display panel | |
| DE59108139D1 (en) | Device for checking a liquid crystal display (LCD) | |
| ZA931069B (en) | Method and sensor for measuring electric voltages and/or electric field strengths | |
| CN110411715A (en) | Device and method for determining AMZI half-wave voltage of phase modulator | |
| CN110058099B (en) | Device and method for automatically and rapidly measuring frequency response of electro-optic modulator | |
| CN207366904U (en) | A kind of Wiring structure of display base plate | |
| CN106873832A (en) | A kind of optical induction type touch screen, touch control display apparatus and touch control detecting method | |
| CN106802378A (en) | Adjustment protection control combination test system | |
| CN206075665U (en) | A kind of polarized light fiber communication experiment demonstration instrument | |
| US6643436B2 (en) | Identifying fibers of fiber optic cables | |
| CN200969175Y (en) | Wireless optical communication experiment instrument | |
| CN203074667U (en) | Vision tester | |
| CN103063405A (en) | instrument used for testing response speed of liquid crystal display (LCD) product | |
| ATE4560T1 (en) | DEVICE FOR DELIVERING AN OPTICAL SIGNAL DEPENDENT ON AN ELECTRICAL OPERATING VALUE OF AN INSULATED CABLE OF A POWER SUPPLY NETWORK. | |
| CN206865459U (en) | A kind of fibre circuit switching device | |
| CN207780176U (en) | A kind of test circuit system for LCD display mainboard | |
| CN202196172U (en) | Laser range finding comprehensive experimental instrument | |
| CN201893760U (en) | Electro-optical modulation program control power supply for laser communication experiments |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |