I-MON 256 High Speed

The I-MON 256 HS Interrogation Monitor offers real-time spectrum monitoring of FBG sensors in the full 1525 - 1570 nm wavelength range at line scan rates up to 34 kHz. A high spectrometer resolution combined with a broad wavelength range provides high-resolution interrogation monitors allowing measurement of a large number of FBG sensors.

A GigE interface and a data acquisition software enables plug-and-play operation for integrators of FBG sensing systems.

Applications

OEM Interrogation Monitor modules:

Vibration analysis
Temperature measurements
Pressure monitoring
Strain measurements

Specifications

Parameter	Unit	I-MON 256 HS
Maximum number of FBG sensors		37
Minimum FBG spacing	pm / GHz	1200 / 150
Wavelength range	nm	1525 - 1570
Wavelength fit resolution (-20 dBm input power)	pm	< 0.5
Repeatability (over any pol. state)	pm	3 (5 max)
Wavelength linearity	pm	5 (typ)
Wavelength drift	pm/deg. C	1 (3 max) (*)
Dynamic range	dB	30
Input optical power range	dBm	-75 to - 25
Measurement frequency	kHz	34 max
Electrical interface		GigE
Power supply		5 VCD, 3A
Operating temperature	deg C	0 to 50
Size (LxWxD)	mm	124x94x59

(*) Note that by applying temperature control or temperature correction the wavelength accuracy over the entire wavelength range can be improved to 10 pm.

Ordering

Request quotation here.

Download Product sheet:

I-MON 256 HS Product Specification Sheet I-MON 256 High Speed Product Specification Sheet

High speed measurement example

1 kHz modulation of FBG measured by I-MON 256 HS

To demonstrate the capabilities of the I-MON 256 HS Ibsen has made a measurement of the wavelength modulation from a piezo actuated FBG sensor with a 1 kHz tone. As seen from the picture to the right the I-MON 256 HS resolves the modulation perfectly.