16 Dec 2012 Cascaded FBG is a kind of FBG that of different center wavelength writing into the same fiber one by one. Because of different reflection wavelength of different FBGs, when a broad band source inject into the cascaded FBG, then different wavelength corresponding to different FBGs reflected. Applied this principle, we can gain physical condition signals of different position by the reflection wavelength shift of different FBGs mounted in the different place simultaneously. Raysung Photonics Inc. can provide cascaded FBGs with kinds of parameters now.
Feature:
High sensitive and accuracy
High tensile strength and reliability
Strong ability of anti-electromagnetic interference
Easy to realize the signal of the remote monitoring
Small size and weight
Excellent long-term stability
Specifications:
Parameters Specifications Tolerance
Center wavelength C&L band, custom +/-0.3nm
FWHM(3dB) 0.08~1.2 nm +/-0.01~0.1nm
Reflectivity 1%-99.99% +/-1~5%
Distance between FBGs >10 cm, cutom
SMSR >10 dB, >15 dB, custom
Pigtail length 1~3 m
Fiber type SMF-28, HI1060, custom
Proof test level >150 kpsi
Operating temperature -20~85°C
Termination Bare fiber, FC/PC, FC/APC, SC/PC, SC/APC |
