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Position: Home > Products > Fiber Bragg Grating (FBG) > Phase Shift FBG

The phase shift FBG developed and manufactured by Connet is a notch filter with extremely narrow linewidth (FWHM), which maintains a suitable distance between two uniform-period fiber Bragg gratings to achieve a phase shift of π or π / 2. Gratings of this structure can be written into rare-earth doped fibers to form DFB-type single-frequency fiber lasers. Arrays of multiple phase-shifted fiber gratings can be used as phase-sensitive sensors for acoustic signal detection, such as fiber laser hydrophon.


Connet has fiber Bragg grating technology and can independently design and manufacture various specifications of phase shift gratings. Operating wavelength covers 1.0um, 1.5um and 2.0um band. Please contact our sales team to discuss your specific requirements.