Fiber Bragg grating (FBG) is gaining traction in the field of optical fiber sensors, either as a
detection tool for ultrasonic waves or as a detection target. The significant contributions of …

A phase-shifted fiber Bragg grating (PS-FBG) fabricated by femtosecond laser phase mask
technique is demonstrated. The PS-FBG fabricated by overlapped two types of fiber Bragg …

We present the applications of a Vernier effect based on cascading two Mach–Zehnder
interferometers (MZIs) as a selectable comb filter and saturable absorber (SA) in an erbium …

A multi-wavelength switchable C-band erbium-doped fiber laser based on a hybrid comb
filter composed of a Sagnac loop and Mach–Zehnder interferometer (MZI) is designed and …

A wavelength switchable erbium-doped fiber laser was constructed based on an all-fiber
Mach–Zehnder interferometer (MZI) comb filter. The MZI consisted of a fiber with two tapers …

In optical communications systems, the used filter and/or demultiplexer needs to have a
broad free spectral range (FSR) in order to accommodate more channels and have …

Wavelength-switchable fiber laser systems have many potential applications. Herein, the
use of an erbium-doped fiber laser based on parallel fiber Bragg gratings (FBGs)(ASE …

A phase-shifted fiber Bragg grating (PS-FBG) based on a microchannel was proposed and
realized by combining the point-by-point scanning method with chemical etching. The PS …