CN206759461U - Single-side belt electro-optic modulation arrangement - Google Patents
Single-side belt electro-optic modulation arrangement Download PDFInfo
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- CN206759461U CN206759461U CN201720268803.4U CN201720268803U CN206759461U CN 206759461 U CN206759461 U CN 206759461U CN 201720268803 U CN201720268803 U CN 201720268803U CN 206759461 U CN206759461 U CN 206759461U
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- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
A kind of single-side belt electro-optic modulation arrangement, including：First coupler, the second coupler, optical splitter, bundling device, phase shifter, the first micro-loop modulator and the second micro-loop modulator, wherein：Laser output light carrier is coupled to silicon waveguide through the first coupler, the output end of first coupler is connected with the input of optical splitter, the output end of optical splitter is connected with the first micro-loop modulator input and the second micro-loop modulator input respectively, first micro-loop modulator output end is connected with bundling device input, the output end of second micro-loop modulator after phase shifter with bundling device input by being connected, the output end of bundling device is connected with the second coupler, the electrode of first micro-loop modulator passes through the first T-shaped bias device receiving voltage drive signal and bias voltage, the electrode of second micro-loop modulator receives voltage drive signals and bias voltage after Hilbert transform by the second T-shaped bias device.The utility model is low in energy consumption, and size is small, is easy to integrated, miniaturization.
Description
Technical field
The utility model relates to a kind of technology of the communications field, specifically a kind of single-side belt electro-optic modulation arrangement.
Background technology
Single sideband modulation is a kind of can to utilize electric energy and the advanced modulation technology of bandwidth with significantly more efficient.Ordinary amplitude modulation skill
Twice of art and a width of source signal of modulated signal band of double sideband modulation technology export.Single sideband modulation technology only sends a side
Band, but all information are contained, it is improved the validity of frequency band.The implementation method of single sideband modulation mainly have filter method and
Phase-shifting method.Filter method is to obtain single sideband singal by filtering out a sideband, thus have lost the energy of a sideband, changes
Sentence, which is talked about, to reach same radio-frequency power in receiving terminal it is necessary to improve the energy of the microwave signal of modulation.Phase-shifting method is to pass through
Suppress the generation of a sideband, its energy is transformed on another sideband, so effectively make use of the energy of microwave signal.
Traditional phase-shifting method single sideband modulation technology mainly increases Dare modulator using Mach and realized, comparatively, accounts for
Big with area, power consumption is big.For the optic communication for needing multiple single sideband modulation subsystem compositions and interconnection system, horse is utilized
Design area required for conspicuous increasing Dare modulator is just bigger, and power consumption is also bigger.Silicon-based micro ring modulator increases Dare with Mach and adjusted
Device processed is compared, and has obvious advantage in size and power consumption.
Utility model content
The utility model is directed to deficiencies of the prior art, proposes a kind of single-side belt electro-optic modulation arrangement, has
Low in energy consumption, size is small, be easy to it is integrated, the characteristics of miniaturization.
The utility model is achieved through the following technical solutions：
The utility model includes：First coupler, the second coupler, optical splitter, bundling device, phase shifter, the first micro-loop are adjusted
Device processed and the second micro-loop modulator, wherein：Laser output light carrier is coupled to silicon waveguide, the first coupler through the first coupler
Output end be connected with the input of optical splitter, the output end of optical splitter is micro- with the first micro-loop modulator input and second respectively
Ring modulator input is connected, and the first micro-loop modulator output end is connected with bundling device input, the second micro-loop modulator it is defeated
Go out end by being connected after phase shifter with bundling device input, the output end of bundling device is connected with the second coupler and by light from silicon ripple
It is coupled to optical fiber in leading, the first micro-loop modulator is connected with the first T-shaped bias device and receiving voltage drive signal and bias voltage,
Second micro-loop modulator is connected with the second T-shaped bias device and receives the voltage drive signals after Hilbert transform and biased electrical
Pressure.
Described the first coupler, the second coupler, optical splitter, bundling device, the first micro-loop modulator, the modulation of the second micro-loop
Device and phase shifter are integrated in same silicon base chip.
The first described micro-loop modulator and second each parameter of micro-loop modulator can as needed and processing platform condition
Specific design.
The first described coupler and the second coupler can be end coupling device or grating coupler.
Described optical splitter is single-input double-output structure, can be multi-mode interference coupler or Y-branch.
Described bundling device is dual input list export structure, can be multi-mode interference coupler or Y-branch.
Described phase shifter is 90-degree phase shifter.
Described laser is narrow band laser.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the adjustment curve of the used micro-loop modulator of embodiment emulation；
Fig. 3 is the single-side belt spectral titration result schematic diagram of microwave signal；
Fig. 4 is the single-side belt spectral titration result schematic diagram of data-signal.
Embodiment
As shown in figure 1, the present embodiment includes：First coupler, the second coupler, optical splitter, bundling device, phase shifter,
One micro-loop modulator and the second micro-loop modulator, wherein：Laser output light carrier is coupled to silicon waveguide through the first coupler, the
The output end of one coupler is connected with the input of optical splitter, the output end of optical splitter respectively with the first micro-loop modulator input
It is connected with the second micro-loop modulator input, the first micro-loop modulator output end is connected with bundling device input, and the second micro-loop is adjusted
By being connected after phase shifter with bundling device input, the output end of bundling device is connected and incited somebody to action with the second coupler the output end of device processed
Light is coupled to optical fiber from silicon waveguide, the first micro-loop modulator be connected with the first T-shaped bias device and receiving voltage drive signal with
Bias voltage, the second micro-loop modulator, which is connected with the second T-shaped bias device and receives the driving of the voltage after Hilbert transform, to be believed
Number and bias voltage.
Described the first coupler, the second coupler, optical splitter, bundling device, the first micro-loop modulator, the modulation of the second micro-loop
Device and phase shifter are integrated in same silicon base chip.
The first described coupler and the second coupler can be end coupling device or grating coupler.
Described optical splitter is single-input double-output structure, can be multi-mode interference coupler or Y-branch..
Described bundling device is dual input list export structure, can be multi-mode interference coupler or Y-branch.
Described phase shifter is 90-degree phase shifter.Laser is narrow band laser.
Described the first micro-loop modulator and the second micro-loop modulator, resonance, Q values are at 1550nm when being not powered on
5000, the coefficient of coup between straight wave guide and micro-loop is 0.145, waveguide effective index 2.6, and the loss of micro-loop waveguide is
10000dB/m, variations in refractive index coefficient are approximately 0.001/V, and the micro-loop waveguide loss for powering up introducing is approximately 1000dB/ (m*
V).Adjustment curve is as shown in Fig. 2 show that above-mentioned simulation parameter setting is more reasonable, the Output optical power of modulator and modulation are electric
There is the region of one section of linear approximate relationship in pressure, with being actually consistent.
As shown in figure 3, plus the bias voltage of microwave signal is 0.3V, peak-to-peak value 0.4V, frequency 10GHz, laser
10 output wavelengths are 1550nm, line width 10MHz.After thang-kng power-up, the spectrum of obtained single sideband singal, lower sideband single order sideband
Effectively suppressed.
As shown in figure 4, plus the bias voltages of NRZ signals is 0.15V, amplitude 0.13V, frequency 10GHz, laser is defeated
It is 1550nm, line width 10MHz to go out wavelength.After thang-kng power-up, the spectrum of obtained single sideband singal, lower sideband is inhibited, side
Band rejection ratio about 10dB.
Above-mentioned specific implementation can by those skilled in the art on the premise of without departing substantially from the utility model principle and objective with
Different modes carries out local directed complete set to it, and the scope of protection of the utility model is defined by claims and not by above-mentioned specific
Implementation is limited, and each implementation in the range of it is by the constraint of the utility model.
Claims (7)
- A kind of 1. single-side belt electro-optic modulation arrangement, it is characterised in that including：First coupler, the second coupler, optical splitter, conjunction Beam device, phase shifter, the first micro-loop modulator and the second micro-loop modulator, wherein：Laser exports light carrier through the first coupler It is coupled to silicon waveguide, the output end of the first coupler is connected with the input of optical splitter, and the output end of optical splitter is respectively with first Micro-loop modulator input and the second micro-loop modulator input are connected, the first micro-loop modulator output end and bundling device input It is connected, the output end of the second micro-loop modulator after phase shifter with bundling device input by being connected, the output end of bundling device and the Two couplers are connected, and the first micro-loop modulator is connected with the first T-shaped bias device, the second micro-loop modulator and the second T-shaped bias device It is connected.
- 2. single-side belt electro-optic modulation arrangement according to claim 1, it is characterized in that, the first described coupler, the second coupling Clutch, optical splitter, bundling device, the first micro-loop modulator, the second micro-loop modulator and phase shifter are integrated in same silicon base chip.
- 3. single-side belt electro-optic modulation arrangement according to claim 1, it is characterized in that, described the first coupler and the second coupling Clutch is end coupling device or grating coupler.
- 4. single-side belt electro-optic modulation arrangement according to claim 1, it is characterized in that, described optical splitter is single input lose-lose The multi-mode interference coupler or Y-branch structure gone out.
- 5. single-side belt electro-optic modulation arrangement according to claim 1, it is characterized in that, described bundling device is that dual input list is defeated The multi-mode interference coupler or Y-branch structure gone out.
- 6. single-side belt electro-optic modulation arrangement according to claim 1, it is characterized in that, described phase shifter is 90 degree of phase shifts Device.
- 7. single-side belt electro-optic modulation arrangement according to claim 1, it is characterized in that, described laser is laser of narrowband Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720268803.4U CN206759461U (en) | 2017-03-20 | 2017-03-20 | Single-side belt electro-optic modulation arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720268803.4U CN206759461U (en) | 2017-03-20 | 2017-03-20 | Single-side belt electro-optic modulation arrangement |
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| CN206759461U true CN206759461U (en) | 2017-12-15 |
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| CN201720268803.4U Expired - Fee Related CN206759461U (en) | 2017-03-20 | 2017-03-20 | Single-side belt electro-optic modulation arrangement |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108780234A (en) * | 2016-07-21 | 2018-11-09 | 华为技术有限公司 | A kind of electrooptic modulator |
| CN110045464A (en) * | 2018-01-16 | 2019-07-23 | 上海交通大学 | The difunctional coupler of vertical-horizontal based on oval multiple-mode interfence |
| US20220100007A1 (en) * | 2020-09-30 | 2022-03-31 | Taiwan Semiconductor Manufacturing Company Limited | Apparatus and method for generating an optical signal |
-
2017
- 2017-03-20 CN CN201720268803.4U patent/CN206759461U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108780234A (en) * | 2016-07-21 | 2018-11-09 | 华为技术有限公司 | A kind of electrooptic modulator |
| US10684497B2 (en) | 2016-07-21 | 2020-06-16 | Huawei Technologies Co., Ltd. | Electro-optic modulator |
| CN110045464A (en) * | 2018-01-16 | 2019-07-23 | 上海交通大学 | The difunctional coupler of vertical-horizontal based on oval multiple-mode interfence |
| CN110045464B (en) * | 2018-01-16 | 2020-09-29 | 上海交通大学 | Vertical and horizontal dual-function coupler based on elliptical multi-mode interference |
| US20220100007A1 (en) * | 2020-09-30 | 2022-03-31 | Taiwan Semiconductor Manufacturing Company Limited | Apparatus and method for generating an optical signal |
| US11874538B2 (en) * | 2020-09-30 | 2024-01-16 | Taiwan Semiconductor Manufacturing Company Limited | Apparatus and method for generating an optical signal |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 Termination date: 20190320 |