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    • 8. 发明专利
    • Variable frequency signal generator
    • 可变频率信号发生器
    • JP2013201464A
    • 2013-10-03
    • JP2013145682
    • 2013-07-11
    • Korea Institute Of Science And Technologyコリア・インスティテュート・オブ・サイエンス・アンド・テクノロジー
    • LEE KWAN ILLEE SANG BAEKIM SUN DUCK
    • H01S3/106G02B26/00H01S3/00H01S3/083H01S3/10
    • H01S5/14H01S3/1053H01S5/1071H01S5/1092H01S5/141H01S5/146
    • PROBLEM TO BE SOLVED: To provide a variable frequency signal generator and a variable frequency signal generating method which provide a light source of two wavelengths in which an interval between oscillation wavelengths changes due to strain, and creates a signal of a frequency corresponding to the interval between the oscillation wavelengths by beating two light signals of respective wavelengths.SOLUTION: A variable frequency signal generator includes: a light source creating a light signal; a resonator into which the light signal by the light source is input; a structure deformable due to strain; a first optical fiber grid which is disposed on the structure, is transparent to the light signal in a wavelength band including a first wavelength and a second wavelength, and is optically connected to the resonator; a second optical fiber grid which is optically connected to the resonator and filters out the light signal of the first wavelength and the second wavelength; and a photoelectric transducer which is optically connected to the resonator and creates a signal of a frequency corresponding to an interval between the first wavelength and the second wavelength. The interval between the first wavelength and the second wavelength accords to a degree of deformation of the structure.
    • 要解决的问题:提供一种可变频率信号发生器和可变频率信号产生方法,其提供两个波长的光源,其中振荡波长之间的间隔由于应变而变化,并且产生与间隔相对应的频率的信号 通过拍摄各个波长的两个光信号而在振荡波长之间。可变频率信号发生器包括:产生光信号的光源; 由光源输入光信号的谐振器; 由于应变而变形的结构; 布置在结构上的第一光纤格栅对于包括第一波长和第二波长的波长带中的光信号是透明的,并且被光学地连接到谐振器; 光纤连接到所述谐振器并滤出所述第一波长和所述第二波长的光信号的第二光纤格栅; 以及光电连接到谐振器并产生与第一波长和第二波长之间的间隔相对应的频率的信号的光电换能器。 第一波长和第二波长之间的间隔与结构的变形程度一致。