Fiber & Probe
Brand：Avantes
Avantes offers a wide range of fiber-optic cables, which can be manufactured in a variety of lengths and configurations to meet your needs.
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Multi-Furcated Fiber-Optic Cables
Simultaneous multi-point measurements and Avantes multi-channel spectrometers, require multi-furcated fiber-optic cables. These assemblies can function as a combiner or splitter of light, as they have multiple legs on side which converge into a single connector on the opposite side.
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Reflection Probes with Multiple Legs
For some measurements, a reflection probe that can be coupled to two spectrometers and a light source is needed. A good example is a reflection measurement in the UV/VIS and NIR range. For these situations, Avantes offers our reflection probes with multiple legs.
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Reflection Probes
Reflection probes are used to obtain spectral information of diffuse or specular materials. The light from a light source is sent through six illumination fibers to the sample, and the reflection is measured by a 7th fiber in the center of the reflection probe tip.
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Reflection Probes with Reference
In order to correct fluctuations and drift from your light source, periodic referencing is required. To facilitate this, Avantes offers this series of reflection probes with a self-referencing feature.Detail
Reflection Probes with Small Tips
For some medical and semiconductor applications, a small/very small tip is advisable for conducting reflectance measurements. Avantes offers two standard diameters of small-tip reflection probes: 1.5 and 2.5mm, with each tip generally being 100mm in length.
The probe is configured with an illumination leg with six 200 μm fiber cables that connect to a fiber-coupled light source and a single 200 μm read fiber cable to measure the reflection via connection to a spectrometer.
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Probes for Powders and Thick Fluids
For industrial applications that need reflection measured in thick liquids or powders, this probe is the ideal choice. The stainless steel cylinder and probe end make it withstand extreme situations. The tip is exchangeable and waterproof. Optionally, PEEK or Hastelloy® C276 can be used as tip material.
1/2" Industrial Reflection Probes for Powders and Thick Fluids
For industrial applications that need reflection measured in thick liquids or powders, this probe is the ideal choice. The stainless steel cylinder and probe end make it withstand extreme situations. The tip is exchangeable and waterproof. Optionally, PEEK or Hastelloy® C276 can be used as tip material.
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1/2" Industrial Fluorescence Probes
For effective measurement of fluorescence, Avantes offers this specially designed reflection probe. It features 12 excitation fibers of 200 μm around a 600 μm read fiber, which transports the fluorescence signal back to the spectrometer.
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Mini Transmission Dip Probes
For absorption measurements in miniaturized centrifuge tubes or vessels, Avantes offers the mini transmission dip probe. It features a miniaturized tip which is 130mm long and 3.2mm in diameter.
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Transmission Dip Probes
Transmission dip probes are used for on-line and inline absorbance measurements in fluids. When dipping or permanently mounting the probe end into the fluid, absorbance can be measured.
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Transmission Dip Probes with Variable Path Length
This fiber-optic probe features a variable and adjustable path length for more flexibility during absorbance measurements in fluids. The gap between the fiber and the diffuser can be set anywhere between 0.25 and 10 mm.
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Custom Fiber Assemblies & Probes
Avantes has significant expertise in designing fiber optics for high-temperature (HTX), high-pressure (HP), vacuum, and other difficult conditions. Our wide variety of standard and custom materials can be configured to provide a fiber assembly which can meet the challenges of your application.
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Collimating Lenses
To convert divergent beams of light into a parallel beam, a collimating lens is needed. Avantes collimating lenses are optimized for the UV/VIS/NIR range (200-2500 nm) and have anodized aluminum housings.
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Cosine Correctors
Cosine correctors are used to collect light from a 180° angle. This eliminates optical interface problems associated with the light collection sampling geometry inherent to other sampling devices such as bare fibre optics, collimating lenses, or integrating spheres.
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Vacuum Feedthroughs
These feedthroughs are designed for use with fibre optics in vacuum chambers, such as for plasma and coating deposition monitoring. They can be used in chambers with wall thicknesses of 5-40mm and vacuum levels up to 10-7 millibar.
Fiber Microscope Adapters
A C-mount adapter is available to easily mount an Avantes fibre-optic spectrometer to a microscope. It connects to an SMA or FC/PC fibre-optic cable and features an outside diameter of 38mm: 35mm long to slide inside the tube of a microscope.
A special adapter with C-mount 1 inch-32 thread is available as AVS-MFA-SMA to screw onto a microscope.
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Fiber-Optic Homogenizer
When connecting a multi-furcated fiber to a spectrometer or light source, light entering/exiting each of the fiber legs may or may not be uniform, so a fiber-optic homogenizer can be used to mix the signals to provide more uniform signal.
The compact MMA-UV/VIS-SMA fiber-optic homogenizer is made of anodized aluminum and has female SMA-905 connectors on both ends. Internally, a highly transmissive Suprasil-Rod with a diameter of 1 or 3 mm transmits the light from one end to the other (from bundle to single fiber) and perfectly mixes the modes.
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Reflection Probe Holders
The RPH-1 is to be used with our standard reflection probes, which are 6.5mm in diameter. The holder enables positioning of the probe tip in two angles: 45 degrees for diffuse reflection measurements and 90 degrees (normal to sample) for specular reflection. This assembly is mostly used to facilitate colour measurements.
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Fiber Interconnects
A fibre interconnect is needed to connect one fibre to another. They can be useful for coupling patch cords to fibre-optic probes and other devices, or for any multiple-fibre application where coupling of standard optical fibres and accessories is preferable to creating costly and complex fibre-optic assemblies.
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