The EDFL is structured by insertion of three different short passive subring cavities, which serve as mode filters, into the main cavity, and it is combined with a fiber Bragg grating (FBG), the MRCs resonator can make SLM lasing.
Two series concatenated fiber Bragg gratings (FBGs) are respectively adopted as reflectors of fiber laser cavity,the laser spectra are tuned with fixed wavelength spacing of(0.8 nm) based on Vernier effect by slightly mechanical tuning of front series concatenated fiber Bragg gratings.
The Turning Error Effect of Reflectors in the Talbot Interferometer used for Writing Fiber Bragg Grating
The Talbot interferometer used for writing fiber Bragg grating (FBG) is analyzed effectively in this paper.
And we simulated the transmission model constructed with Erbium-doped fiber amplifier (EDFA) as the solo amplifier and the chirped fiber Bragg grating (CFBG) as the solo dispersion compensator used in the system.
Resolving the problem of cross sensitivity in fiber Bragg grating sensor based on the principle of polarized-light interference
This method can solve the problem of cross sensitivity in fiber Bragg grating sensor.
Optical fiber Bragg grating strain sensors are embedded in the tie-bar arch bridge for online monitoring of changes in the state of internal force.
The relation between the tie-bar extension force measured by optical fiber Bragg grating strain sensors and the internal state of the tie-bar arch bridge under the actions of loading and temperature are discussed.
A new type of underwater acoustic sensor is proposed with an optical fiber Bragg grating (FBG).
The main objective of this work is to investigate the bridging tractions in a model composite using optical fiber Bragg grating (FBG) sensors written into selected reinforcing fibers.
As for the yttrium vanadate (YVO4) crystal polarized-light interferometer, if there are two different fiber Bragg gratings that have a π rad phase difference, one is used for strain sensor and the other is used for temperature compensating.
This work is devoted to issues related to development of measuring equipment for investigation of thermal and deformation processes with the help of sensors based on fiber Bragg gratings.
The theoretically calculated spectra are in good agreement with the experimental data for various output reflection coefficients of the fiber Bragg gratings across the entire power range.
Tunable fiber Bragg gratings for application in tunable fiber lasers
The resonance wavelength of the fiber Bragg gratings (FBGs) is tuned using two methods.