Optical spectrum analyzer
AssigneeYokogawa Electric Corporation
InventorsKazushi Ohishi, Hiroshi Ohta, Yoshinobu Sugihara
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Abstract
An optical spectrum analyzer has a deflection section for changing an incidence angle of measured light on a diffraction grating, a plurality of light detection sections for detecting the dispersed measured light and outputting an electric signal responsive to the light strength, and a signal processing section for finding an optical spectrum of the measured light based on the electric signal from the light detection sections. The light detection sections are arranged along the wavelength dispersion direction of the diffraction grating and output electric signals independently of each other.
Claims6
An optical spectrum analyzer for dispersing measured light into a spectrum through a diffraction grating and measuring the dispersed measured light to find an optical spectrum, said optical spectrum analyzer comprising:
- a deflection section for changing an incidence angle of the measured light on the diffraction grating;
- a plurality of light detection sections for detecting the dispersed measured light and outputting electric signals responsive to the light strength;
- and
- a signal processing section for finding an optical spectrum of the measured light based on the electric signals from said light detection sections,
- wherein said light detection sections are arranged along the wavelength dispersion direction of the diffraction grating and output electric signals independently of each other.
Dependencies are inferred from the claim text.