FSL300 Fibre Spectral Attenuation Spectrometer

  • FSL300 Fibre Spectral Attenuation System
  • Fibre Launch Systems
  • Spectral attenuation Software
Call us:
+44 (0)118 975 1355

Employing the internationally recognised reference test method, the cut-back technique, the FSL300 provides high measurement precision across all fibre types. Due to the sequential nature of this technique, Bentham has designed the FSL400 to exhibit superlative optical and mechanical stability and repeatability at the cut-back end to ensure ultimate measurement confidence.

The tuneable monochromatic light source and detector FSL300 can be configured to the spectral range of is highly configurable to FSL300 features a modular design, demonstrating enhanced configurational flexibility via the independent selection of chopped light source, monochromator configuration, lock-in amplifier, detector station and launch optics for measurement over an exceptionally wide spectral range.

Core benefits

Features

  • Accurately assesses fibre spectral loss
  • Employs internationally recognised cut-back technique
  • The wavelength band may be extended throughout UV-vis and into the IR beyond 5000nm
  • Fully-automated via PC, responsible for dB/km loss calculation as a function of wavelength 
  • High-precision assessment of a large range of fibre types, including silica, doped glass, plastic and photonic bandgap fibres
  • Optical stability is ensured by the use of a quart tungsten halogen light source driven by a constant-current power supply
  • Light source and launch optics are bolted firmly to the monochromator to negate mechanical instability over time

Reported Parameters

  • Fibre spectral attenuation, dB/km

FSL300_Si

Spectral range350-1100nm
Typical spectral data interval5nm
Typical spectral bandwidth (FWHM)5nm
Light sourceOptically chopped IL1
MonochromatorTMc300 with 1200 g/mm gratings
Detector2.4x 2.4mm room temperature Silicon: 350-1100nm
Wavelength accuracyGA-T312R0U5 ± 0.2nm

FSL300_InGaAs

Spectral range800-1700nm
Typical spectral data interval5nm
Typical spectral bandwidth (FWHM)5nm
Light sourceOptically chopped IL1
MonochromatorTMc300 with 1200 g/mm gratings
Detector1mm dia. room temperature InGaAs: 800-1700nm
Wavelength accuracyGA-T30831U2: ± 0.3nm

FSL300_InGaAs_EX

Spectral range800-2500nm
Typical spectral data interval5nm
Typical spectral bandwidth (FWHM)5nm
Light sourceOptically chopped IL1
MonochromatorTMc300 with 830 & 600 g/mm gratings
Detector1mm dia. thermoelectrically cooled extended InGaAs: 800-2500nm
Wavelength accuracyGA-T30831U2: ± 0.3nm
GA-T306R1U6: ± 0.4nm

FSL300_PbSe

Spectral range1500-5000nm
Typical spectral data interval10nm
Typical spectral bandwidth (FWHM)10nm
Light sourceILD-QH-IR-CHOP
MonochromatorTMc300 with 600 & 300 g/mm gratings
Detector3mm dia. thermoelectrically cooled PbSe: 1000-5000nm
Wavelength accuracyGA-T306R1U6: ± 0.4nm
GA-T303R3U0: ± 0.8nm

FSL300_Dual_Si_InGaAs

Spectral range350-1700nm
Typical spectral data interval5nm
Typical spectral bandwidth (FWHM)5nm
Light sourceOptically chopped IL1 (link)
MonochromatorTMc300 with 1200 & 830 g/mm gratings
Detectors2.4x 2.4mm room temperature Silicon: 350-1100nm
1mm dia. room temperature InGaAs: 800-1700nm
Wavelength accuracyGA-T312R0U5 ± 0.2nm
GA-T30831U2: ± 0.3nm

Options

FSL300_SiThe FSL300 fibre spectral attenuation spectrometer with Si detector (350-1100nm)
FSL300_InGaAsThe FSL300 fibre spectral attenuation spectrometer with InGaAs detector (800-1700nm)
FSL300_InGaAs_EXThe FSL300 fibre spectral attenuation spectrometer with extended InGaAs detector(800-2500nm)
FSL300_PbSeThe FSL300 fibre spectral attenuation spectrometer with PbSe detector (1500-5000nm)
FSL300_Dual_Si_InGaAsThe FSL300 fibre spectral attenuation spectrometer with dual Si and InGaAs detectors (350-1700nm)
Example Spectral Attenuation Measurement
Example Spectral Attenuation Measurement
Example Transmission of Fibres
Example Transmission of Fibres
Spectral Attenuation of Erbium Doped Fibre
Spectral Attenuation of Erbium Doped Fibre
 

Ordering information

FSL300_SiThe FSL300 fibre spectral attenuation spectrometer with Si detector (350-1100nm)
FSL300_InGaAsThe FSL300 fibre spectral attenuation spectrometer with InGaAs detector (800-1700nm)
FSL300_InGaAs_EXThe FSL300 fibre spectral attenuation spectrometer with extended InGaAs detector(800-2500nm)
FSL300_PbSeThe FSL300 fibre spectral attenuation spectrometer with PbSe detector (1500-5000nm)
FSL300_Dual_Si_InGaAsThe FSL300 fibre spectral attenuation spectrometer with dual Si and InGaAs detectors (350-1700nm)

Software Control

The FSL300 may be controlled over the USB 2.0 interface using our Windows application Benwin+ (LINK)  or by user written code based on our SDK on a wide range of platforms (Labview, Matlab, C++ etc. Using configuration files, both applications allow:

  • Wavelength selection 
  • Detector signal recovery
  • Spectral measurements

Benwin+ includes higher functionality including:-

  • Direct computation of spectral attenuation

The Bentham Standard

We’re with you from the first call to the final result

Call us on +44 (0)118 975 1355 or email us