Optical Fiber Micro Spectrometer Employing Self-Focusing Radiated Tilted Fiber Grating

We propose and demonstrate an all-fiber micro spectrometer based on self-focusing radiated tilted fiber grating, which has the tunability in both spectral resolution and measurement range by simply changing the radian curvature of the self-focusing radiated tilted fiber grating. © 2022 The Author(s).