Waveguide grating structure parameter determination method and device, storage medium and laser radar
A structure parameter, waveguide grating technology, applied in the computer field, can solve the problems of difficult and high-efficiency coupling, unsatisfactory antenna emission uniformity and directivity, large grating lobes, etc.
Active Publication Date: 2020-12-04
SUTENG INNOVATION TECH CO LTD
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Problems solved by technology
When there are few design parameters, it is difficult to achieve high-efficiency coupling for grating couplers; for phased array grating antennas, the uniformity and directivity of antenna emission are not ideal, and far-field spots may be accompanied by larger grating lobes
When there are many parameters in the design, it will make the whole design process very complicated.
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[0029] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0030] In the description of the present application, it should be understood that the terms "first", "second" and so on are used for descriptive purposes only, and should not be understood as indicating or implying relative importance. In the description of the present application, it should be noted that, unless otherwise specified and limited, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system,...
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An embodiment of the invention discloses a waveguide grating structure parameter determination method and device, a storage medium and a laser radar. The waveguide grating structure parameter determination method comprises the steps of: acquiring current structure parameters of a waveguide grating, and acquiring a current far-field light scookware divergence angle of the waveguide grating based onthe current structure parameters; acquiring historical structure parameters of the waveguide grating, and acquiring a historical far-field light scookware divergence angle of the waveguide grating based on the historical structure parameters; and determining target structure parameters of the waveguide grating based on the current far-field light scookware divergence angle and the historical far-field light scookware divergence angle. By adopting the waveguide grating structure parameter determination method and the device of the invention, the minimum far-field light scookware divergence angle can be obtained after optimization, and the structural parameters of the waveguide grating are rapidly and effectively designed while the diffraction efficiency is ensured to be met.
Description
technical field [0001] The present application relates to the field of computer technology, in particular to a method, device, storage medium and laser radar for determining structural parameters of a waveguide grating. Background technique [0002] From discrete passive devices such as couplers, wavelength division multiplexers, optical switches, etc., to discrete active optical devices such as light sources, optical detectors, optical modulators, etc., to the integration of multiple optical devices on the same chip, Integrated photonic devices play an important role in many fields. [0003] Waveguide gratings are one of the most important and basic devices in silicon-based integrated optics. In the field of optical communication, the functions of focusing, reflection, refraction, filtering and coupling can be realized by using the diffraction effect of the grating. In the field of radar, the grating can be used as the transmitting unit of the phased array radar, and mult...
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IPC IPC(8): G01M11/02G06N3/00
CPCG01M11/0242G06N3/006
Inventor 朱琳任亚林汪敬牛犇
Owner SUTENG INNOVATION TECH CO LTD