An on-chip integrated balance detection receiving system and method
A technology for balancing detection and receiving systems, applied in the field of coherent detection, can solve problems such as complex optical path implementation methods, inconvenient debugging, small detection field of view, etc., to reduce system volume and adjustment difficulty, improve system stability, and small size Effect
Active Publication Date: 2021-07-13
INFORMATION SCI RES INST OF CETC
View PDF11 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, at this stage, domestic research on balanced detection is not in-depth, for example, the optical path implementation method is complicated, the detection field of view is small, and there is no relevant experiment to further improve the signal-to-noise ratio of balanced detection, etc.
[0004] Traditional balanced detection systems are mostly built with spatially discrete devices (such as space lenses, space polarization devices, etc.), which are large in size, complex in structure, high in power consumption, and inconvenient to debug
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0051] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0052] According to the embodiment of the present application, an on-chip integrated balanced detection and receiving system is proposed, such as figure 1 shown, including:
[0053] The optical antenna lens is used to obtain the spatial light and send it to the integrated grating array through the optical fiber;
[0054] The integrated grating array is connected to the multi-mode interference coupler array through the silicon-base...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The application discloses an on-chip integrated balanced detection and receiving system and method, including: the optical antenna lens acquires the spatial light, and sends it to the integrated grating array through the optical fiber; the integrated grating array couples the spatial light into the silicon-based waveguide and sends it to the multimode interference coupler array The waveguide end face coupler obtains the local oscillator light, couples it into the silicon-based waveguide, and sends it to the multimode interference coupler array; the multimode interference coupler array performs interference mixing on the signal light and the local oscillator light to obtain the first output light and the second output light. The output light is sent to the waveguide balance detector array; the waveguide balance detector array performs photoelectric conversion and intermediate frequency detection on the first output light and the second output light, and obtains the first intermediate frequency electrical signal and the second intermediate frequency electrical signal, which are sent to the signal processing module; the signal processing module processes the first intermediate frequency electrical signal and the second intermediate frequency electrical signal to obtain signal information. Low optical path complexity, large detection field of view, low adjustment difficulty, high stability, simple structure, small size, and low power consumption.
Description
technical field [0001] The present application relates to the technical field of coherent detection, and in particular to an on-chip integrated balanced detection receiving system and method. Background technique [0002] Coherent detection technology not only has the characteristics of strong detection ability, high conversion gain, good filtering performance and high stability, but also can detect signal amplitude, intensity, phase and other information, and is widely used in the field of weak signal detection. However, due to the low utilization rate of reference optical power and high noise of ordinary coherent detection, coherent detection cannot meet the requirements of detection range, detection accuracy and sensitivity in some fields, and balanced detection came into being. [0003] Balanced detection is to place two sets of detection devices in the same detection system, input the reference light and signal light into the photodiode respectively, convert the optical...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/486G01S17/89
CPCG01S7/4863G01S17/89
Inventor 杨丽君胡小燕曹静王伟平赵少宇李斌郭于鹤洋
Owner INFORMATION SCI RES INST OF CETC