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A Photodetector Spectral Response Analysis System

A photoelectric detector and spectral response technology, applied in the field of photoelectric detectors, can solve the problems of test result error, mechanical precision error, etc., and achieve the effect of improving light source design

Active Publication Date: 2018-01-12
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Problems solved by technology

Operational differences often cause errors in the mechanical precision of spot alignment, which will also cause errors in test results

Method used

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  • A Photodetector Spectral Response Analysis System
  • A Photodetector Spectral Response Analysis System
  • A Photodetector Spectral Response Analysis System

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Embodiment Construction

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention discloses a photodetector spectral response analysis system. The photodetector spectral response analysis system includes: a controllable monochromatic light source, which is used to output a fixed-frequency monochromatic light wave in a continuously adjustable manner within a certain wavelength band; a detector room, which is used to obtain reference photodetectors and waiting Measuring the spectral response signal of the photodetector to the monochromatic light wave; and a control device for controlling the controllable monochromatic light source and the detector chamber, and receiving the spectral response signal to generate the relative spectrum of the photodetector to be measured response curve. The spectral response analysis system of the photodetector of the invention improves the design of the light source, and realizes continuous and narrow-band output of outgoing light waves in a certain band. Therefore, in the prior art solution, the technical problem of low test accuracy due to the accumulation effect caused by the wide bandwidth of the transmitted light wave is solved.

Description

technical field [0001] The invention relates to the technical field of photodetectors, in particular to a photodetector spectral response analysis system. Background technique [0002] The spectral response (Spectral Response) reflects the relationship between the photodetector and the irradiation wavelength λ, and is a basic performance parameter of the photodetector device. As a photosensitive sensing device, the photodetector also has different response characteristics to irradiated light waves of different wavelengths λ. [0003] For the spectral response of the image sensor, the broadband filter method is mostly used for testing at present. The light wave emitted from the irradiating light source is projected onto the photodetector under test after passing through the filter. Due to the wavelength selectivity of the filter, only the light waves within the central wavelength of the filter and within a certain bandwidth nearby can pass through. Detect the output value ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/02
Inventor 秦琦吴南健
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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