Optical sampling measurement apparatus and optical sampling measurement method
AssigneeYokogawa Electric Corporation
InventorsYoshiki Yanagisawa, Masatoshi Kanzaki
Life of this patent
Estimating the term…
Abstract
A light sampling measurement apparatus comprising a nonlinear optical element supplied with a light to be measured and a sampling light and a light receiving element for receiving a light outputted from the nonlinear optical element, includes: a storage unit for previously storing noise generated in the light receiving element; a calculating unit for obtaining a subtracted noise by subtracting the noise stored in the storage unit, from a measured noise, to calculate a Q value of the light to be measured.
Claims5
A light sampling measurement apparatus comprising a nonlinear optical element supplied with a light to be measured and a sampling light and a light receiving element for receiving a light outputted from the nonlinear optical element, comprising:
- a storage unit for previously storing noise generated in the light receiving element;
- and
- a calculating unit for obtaining a subtracted noise by subtracting the noise stored in the storage unit, from a measured noise, to calculate a Q value of the light to be measured,
- wherein the storage unit stores the noise generated in the light receiving element at each light intensity of the light to be measured.
A light sampling measurement apparatus comprising a nonlinear optical element supplied with a light to be measured and a sampling light and a light receiving element for receiving a light outputted from the nonlinear optical element, comprising:
- a storage unit for previously storing noise generated in the light receiving element;
- and
- a calculating unit for obtaining a subtracted noise by subtracting the noise stored in the storage unit, from a measured noise, to calculate a Q value of the light to be measured, wherein:
- the storage unit stores the noise generated in the light receiving element at each specific light intensity and;
- the light sampling measurement apparatus comprising an operating unit for calculating a noise to be subtracted on the basis of the light intensity of the light to be measured, using the noise stored in the storage unit.
A light sampling measurement apparatus comprising a nonlinear optical element supplied with a light to be measured and a sampling light and a light receiving element for receiving a light outputted from the nonlinear optical element, comprising:
- a storage unit for previously storing noise generated in the light receiving element;
- and
- a calculating unit for obtaining a subtracted noise by subtracting the noise stored in the storage unit, from a measured noise, to calculate a Q value of the light to be measured,
- wherein the noise stored in the storage unit is obtained by inputting a continuous light having a known light intensity as the light to be measured, to the nonlinear optical element.
Dependencies are inferred from the claim text.