FB200 FBG SENSOR MONITOR

Wavelength monitor for the FBG sensor system
- FBG (Fiber Bragg Grating) sensing system
- Spectroscope
- FBG spectrum measurement
- Measurement example
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Details
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Features
High Speed and High Resolution Measurement
- Measures power and center wavelength of FBG reflection spectrum
- Wavelength range: 1527 to 1567 nm, or 1568 to 1607 nm
- Wavelength resolution: 1 pm
- Power range: -4 dBm to -60 dBm (0.1 nm RBW)
- Sampling interval: 10 msec to 360 sec (fastest: 100 Hz)
- Number of simultaneously measurable FBG sensors: 40 (typical)
Ultra-Compact and Highly Reliable
- Polychromator architecture with no moving parts
- 170 (W) X 28 (H) X 220 (D) mm, 1.2 kg
- 170 (W) X 101 (H) X 220 (D) mm, 2.2 kg (with power supply)
- Highly reliable design for WDM system applications (lifetime > 10 years)
- Operating temperature: 0 to 60 degrees c , 0 to 50 degrees C (performance)
Technical Information
FBG Sensing System

Spectroscope
Polychromator architecture with Photo Diode Array (PDA)
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Wavelength Resolution
- High resolution ( 1 pm) is achieved by a unique interpolation algorithm from pixel data.
FBG Spectrum Measurement
| The center wavelength of an FBG spectrum is calculated through interpolation of pixel data, which allows a wavelength display resolution of 1 pm. Number of simultaneously measurable FBG sensors is 40 (typical, depending on FWHM and pitch (max. 100 FBGs)). |
![]() Schematic of photodiode array and reflection spectrum of FBG |
Measurement Example (1)
FB200 FBG sensor monitor versus a wavelength meter
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Measurement Example (2)
High Speed measurement (10 msec interval)
![]() 10 Hz vibration
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![]() 34 Hz vibration
(Solid line: sine fit curve) |
Measurement Example (3)
GUI on PC

3 FBG sensor
Specifications
| Name | Description | File Type | |
|---|---|---|---|
| Bulletin FB200-01E | FB200 Fiber Bragg Grating Sensor Monitor | 138 KB |
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