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Tilted FBG
简要描述： Tilted fiber Bragg grating (TFBG) is a special fiber grating whose grating fringes form a certain angle with the fiber axis.
产品介绍
Tilted FBG
Tilted fiber Bragg grating (TFBG) is a special fiber grating whose grating fringes form a certain angle with the fiber axis. Due to the introduction of the grating tilt angle, the forward-conducting incident light is effectively excited to the backward-conducting cladding mode, and the backward-conducting core mode satisfying the Bragg condition is retained. Since the core mode and the cladding mode have different sensing characteristics, TFBG combines the advantages of FBG and LPG two types of fiber gratings, and can realize the simultaneous measurement of multiple parameters (temperature, strain, refractive index, etc.).
Key Features
l High accuracy
l Easy to install
l Easy to daisy-chain
l Long lifetime
Applications
l Biosensing
l Chemicals
l Gas Detection
l Commercial Sensing
Main parameters
Item | Unit | Specification |
Center Wavelength | nm | 1525 ~ 1565 |
Tilted Angle | ° | 1 ~ 10 |
Core Transmission | dB | 5 ~ 30 |
FBG Length | mm | 10 ~ 20 |
Cladding Transmission | dB | 5 ~ 30 |
Reflectivity | % | >5 |
Bandwidth (FWHM) | nm | 0.1 ~ 0.8 |
SLSR | dB | >8 |
FBG Recoating | -- | None, Acrylate, Polyimide, or custom |
Tensile Strength | kpsi | ≥100 |
Fiber Type | -- | Single-Mode |
Fiber Coating | -- | Acrylate, Polyimide, or custom |
Pigtail Length | m | Standard 1m both ends, or custom |
Optical Connector | -- | Bare Fiber, FC/APC, SC/APC, or custom |
