Method for realizing coding by switching between lasing state and non-lasing state of optical structure
A technology of optical structure and state switching, applied in the field of high-bandwidth coding, to achieve the effects of expanding the range of coding bandwidth, saving coding energy consumption, and improving reliability
Active Publication Date: 2020-05-19
EAST CHINA NORMAL UNIVERSITY
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[0004] The disadvantage of most of the existing optical coding methods is that they are based on the light output by the existing light source, and then passively modulate the optical signal in the later stage.
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[0045] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0046] For the convenience of understanding, the schematic diagram of the principle of the present invention is as follows figure 1 Shown is the schematic diagram of microsphere lasing and non-lasing state transition.
[0047] Ⅰ) Preparation of microspheres
[0048] The optical structure can be grown or prepared by a variety of micro-nano processing technologies. It is a luminescent material itself, or its components are luminescent materials. It must have the characteristics of an optical resonant cavity. The Q value of the optical cavity is at least 100. No limit, no limit to the external shape, and no limit to the chemical composition of the internal and external materials.
[0049] In this example, the all-inorganic cesium lead halide CsPbBr is prepared by high-temperature chemical vapor deposition. 3 Microspheres as optical structures.
[005...
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The invention discloses a method for realizing coding by switching between a lasing state and a non-lasing state of an optical structure, and belongs to the technical field of photoelectric materialsand devices. The single pulse power in the picosecond time scale is regulated and controlled, the optical structure which can emit light and has the characteristics of a resonant cavity and is high inQ value is used for achieving conversion between the lasing state and the non-lasing state in a light path built by combining optical elements such as a beam splitter, an adjustable reflecting mirrorand a continuous attenuation piece. The optical radiation in the two states carries different parameters, the parameters correspond to '1' and '0' respectively, binary high-bandwidth coding is achieved, even slight improvement is made on the basis of hea light path of binary coding, and ternary coding can be achieved. The coded tunable bandwidth is as high as 0.1 THz so that the development of ahigh-bandwidth information processing optical microchip is facilitated.
Description
technical field [0001] The invention belongs to the technical field of photoelectric materials and devices, and in particular relates to a method for realizing high-bandwidth coding by switching between a laser state and a non-laser state of an optical structure. Background technique [0002] In recent years, with the advancement of growth technology and precision processing technology, the scale of microstructures has reached the nanometer level. People collectively refer to materials with fine structures of micron and submicron levels as micro-nano materials. From then on, optical research can start from large The optical platform is integrated into the microstructure, providing more methods and tools for regulating electromagnetic waves, and enriching the research in many fields such as laser physics and nonlinear optics. Under laser excitation, microstructures often produce unusual effects caused by size and shape, such as optical waveguides, optical cavities, etc. This ...
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Patent Timeline
Login to View More IPC IPC(8): G02F7/00G01N21/01
CPCG01N21/01G02F7/00G02B2207/101G02F1/3526G02F1/37H03M7/008G01N21/63G02B27/106
Inventor 谢微费萌董红星钟义驰
Owner EAST CHINA NORMAL UNIVERSITY