| 摘要 |
A fiber Bragg grating interrogator assembly, comprising:
- an optical fiber (120) including a fiber Bragg grating (FBG; 122) having a variable Bragg wavelength (» B ) and a dynamic range of interest (”» dyn,B ) over which the Bragg wavelength (» B ) can shift during use;
- a light source (102) operably connected to the optical fiber (120), and configured to illuminate the fiber Bragg grating (122) to solicit a response therefrom; and
- an response analyzer (140), including:
- a spectrally selective device (142) having an input port (145) and a plurality of output ports (149-n), wherein the input port is operably connected to the optical fiber (120) and wherein each of the output ports is associated with a respective spectral range (”» n ), said spectrally selective device being configured to provide a spectral energy distribution of a response of the fiber Bragg grating received on the input port onto said output ports (149-n). |
