The experimental results demonstrate that the center wavelength is linear with the temperature change, It also shows that wavelength tuning range of the FBG sample is up to 1.5nm and the accuracy is better than 0.05nm and has little influence with the change of environmental temperature.
The experimental results demonstrate that the center wavelength is linear with the temperature change, It also shows that wavelength tuning range of the FBG sample is up to 1.5nm and the accuracy is better than 0.05nm and has little influence with the change of environmental temperature.
New electro-optic material is used to realize the fast tuning,as the central wavelength can be shifted by 1 nm with the change of refractive index of 0.001.
In the experiments,it is demonstrated the quasi-chirp-free wavelength tuning of(6.706 nm) and the broadest bandwidth tuning of(5.368 nm) in which the center wavelength is quasi-shift-free,moreover,the relation of center wavelength and bandwidth tuning with the force is linear,respectively. The experimental results are in good agreement with the theoretical analyses.
It introduces an advanced temperature tuning method, which encapsulates fiber Bragg grating with pipe shell groupware of general semiconductor light source, and changes the temperature of FBG by operating refrigeration apparatus and temperature sensitive resistance in the groupware cooperated with peripheral control circuits. A sealed sample of FBG with metal shell is designed which structure is simple. Temperature experiments are carried on at different environmental temperatures at 0℃,20℃,40℃.The range of...
A novel integrated waveguide filter composed of Mach-Zehnder interferometer(MZI) side-coupled with a micro-ring resonator array is proposed and analyzed.The micro-ring resonator array will add more poles and zeros to the spectra of the MZI.Box-like transmission spectrum will be optimized,that the shape factor is 0.4 around the central wavelength of 1 550 nm,and large free spectral range (28 nm) is predicted.New electro-optic material is used to realize the fast tuning,as the central wavelength can be shifte...
A new independent tuning method of the center wavelength and the bandwidth of fiber grating is proposed.The fiber grating is bonded to the outer surface of loop thin-wall section beam.The center wavelength and the bandwidth of the fiber grating can be tuned respectively through rotating the beam,namely,changing the position of the fiber grating.In the experiments,it is demonstrated the quasi-chirp-free wavelength tuning of(6.706 nm) and the broadest bandwidth tuning of(5.368 nm) in which the center waveleng...