Encoding method using optical structure lasing state and non-lasing state switching

Abstract

The invention discloses a method for realizing coding by switching between a laser state and a non-laser state of an optical structure, and belongs to the technical field of photoelectric materials and devices. By adjusting the power of a single pulse within the time scale of picoseconds, the excitation is realized in the optical path constructed by combining optical components such as beam splitters, adjustable mirrors, and continuous attenuation plates by using an optical structure that can emit light, have resonant cavity characteristics, and have a high Q value. The transition between the lasing state and the non-lasing state, because the optical radiation in the two states carries different parameters, the parameters correspond to "1" and "0" respectively, and the binary high-bandwidth coding is realized, even slightly on the basis of the binary coded optical path. For improvement, ternary encoding can be realized. The tunable bandwidth of the code is as high as 0.1 THz, which is beneficial to promote the development of optical microchips for high-bandwidth information processing.

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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Problems solved by technology

[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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