Expanded Wavelength Coverage Reflection Probes


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An expanded wavelength coverage reflection probe allows UV-VIS and VIS-NIR measurements to be made simultaneously at the same sampling location. It uses a novel 12-around-2 fiber bundle configuration at the probe tip to deliver 6 UV-VIS and 6 VIS-NIR fibers for illumination to the same spot, with reflected light collected by 2 central read fibers. Each read fiber is routed to a separate read leg, one UV-VIS (300 – 1100 nm) and the other VIS-NIR (400 – 2100 nm), for parallel measurement by two spectrometers.  

  • 12-around-2 fiber bundle design at probe end
  • 6 UV-VIS and 6 VIS-NIR illumination fibers, each routed via a separate illumination leg
  • 1 UV-VIS and 1 VIS-NIR read fiber, each with their own read leg
  • Couples easily to a dual-channel spectrometer in which each channel is set for a different wavelength range
  • Available in premium- and lab-grade, 200 μm core fibers

Engineering Specifications Reflection Probes for Expanded Wavelength Coverage
Probe ferrule material: Stainless steel
Probe ferrule length: 76.2 mm (3″)
Probe ferrule diameter: 6.35 mm (1/4″)
Probe fiber bundle: 12 illumination fibers around 2 read fibers
Numerical aperture: 0.22 ± 0.02 (equivalent to an acceptance angle of 24.8° in air)
Illumination legs: Leg 1: 6 UV-VIS fibers
Leg 2: 6 VIS-NIR fibers
Read legs Leg 1: 1 UV-VIS fiber
Leg 2: 1 VIS-NIR fiber
Jacket: Premium-grade: Silicone-coated steel monocoil with a Nomex braid for superior strain relief and protection
Lab-grade: PVDF zip tube
Connectors: Premium-grade: Precision SMA 905 with knurled ferrule
Lab-grade: Standard hex-nut SMA
Length: 2 m
Breakout: Midway point of assembly at 1 meter
Fiber core size: 200 μm (other fiber sizes available on a custom basis)
Wavelength range: UV/VIS, VIS/NIR (see product variations table for options)
Fiber buffer: See Fiber Bend Radius and Mechanical Specifications for details
Bend radius: See Fiber Bend Radius and Mechanical Specifications for details
Operating temperature: -20 °C to 80 °C

Applications in which this product is used:

Measurement Techniques in which this product is used:

Application Notes: