Adjustable photoreceiver structure
A receiver and dimming technology, applied in electromagnetic receivers and other directions, can solve the problems of high power consumption and large device size, and achieve the effects of low structural manufacturing cost, high isolation between passbands, and high-speed switching.
Inactive Publication Date: 2014-03-26
WUHAN TELECOMM DEVICES
View PDF6 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the method based on small motors driving filter rotation detection has the disadvantages of large device size and high power consumption.
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
[0015] The present invention will be further described below in conjunction with the accompanying drawings.
[0016] see figure 1 And in conjunction with referring to shown, the present invention provides a kind of adjustable optical receiver structure, comprises diffraction grating 1, MEMS mirror 2, Zig-Zag type multi-wavelength filter 3 and photodetector 4, wherein:
[0017] The diffraction grating 1 can spatially separate the input light of different wavelengths, that is, the principle that light of different wavelengths is refracted in different angles in the diffraction grating 1 is used. For example, if the input light has four wavelengths, namely λ1~λ4, when it is incident on the diffraction grating 1, the light from λ1~λ4 will be transmitted along different angles, thus achieving wavelength splitting in space;
[0018] The main function of the MEMS reflector 2 is to reflect light. Of course, MEMS can also realize the rotation of the reflected light angle. When the tra...
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 invention provides an adjustable photoreceiver structure which comprises a diffraction grating, an MEMS reflector, a Zig-Zag multi-wavelength filter and an optical detector, wherein the diffraction grating is located in the position capable of irradiating the MEMS reflector, so that the diffraction grating spatially separates the input light of different wavelengths and projects same onto the MEMS reflector; the MEMS reflector is located in a position irradiating the Zig-Zag multi-wavelength filter, and can rotate the angle of reflected light when reflecting light; the Zig-Zag multi-wavelength filter filters different wavelengths of incident light, and collects the filtered light to a light output end and transmits same in the optical detector. By means of the above-mentioned structure or a construction combination thereof, the adjustable photoreceiver structure is achieved, so that high-speed switching among different wavelengths can be achieved, the incident light spectrum can be shaped, and good effects of low cost, compact structure, small size and high degree of isolation between the passbands can be achieved.
Description
technical field [0001] The invention relates to the field of optical communication equipment, in particular to a structure of an adjustable optical receiver. Background technique [0002] In order to greatly increase the capacity of the optical access network, it is urgent to use the next-generation optical access network TWDM-PON system to smoothly upgrade the existing access network, and the adjustable optical receiver is one of the core optoelectronic devices of this system , and its successful research and development and commercialization can greatly change the bottleneck problem of long-term dependence on foreign imports of high-performance access network devices, and realize the localization and independent innovation of next-generation optical access network related technologies. [0003] At present, there are many schemes to realize the adjustable optical receiver, such as the thermally tuned light receiving method of multi-layer dielectric film, the method of rotat...
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 Applications(China)
IPC IPC(8): H04B10/60
Inventor 周亮曹晓鸽余向红
Owner WUHAN TELECOMM DEVICES