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Ocean Optics - Inventor of the World's First Miniature Spectrometer
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Reflection / Backscattering Probes with Reference Leg
Our Fiber Optic Reflection / Backscattering Probes are used
for measuring specular or diffuse reflectance from a surface, fluorescence
from solid surfaces, or backscattering and fluorescence in solutions and
powders.
We offer several Reflection /
Backscattering Probes that include a reference leg for monitoring the
illumination (or reference) source, which is useful for any experiment in
which variation or instability in the spectral output of the light source
is likely to have an impact on the
spectral data.
Our Reflection / Backscattering Probes are
based on a natural close-packing arrangement of optical fibers, which
consists of a tight bundle of seven optical fibers (six illumination
fibers around one read fiber). This arrangement ensures parallel
orientation of the fibers. The center or read fiber splits from the other
six fibers and couples to a spectrometer. The outer six illumination
fibers connect to the light source and provide light to the sample. In
Reflection / Backscattering Probes with an additional reference leg, there
is one more optical fiber that goes directly from the light source to a
spectrometer channel for reference monitoring.
Specifications
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Fiber profile: |
Step-index multimode |
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Fiber core: |
Pure silica core |
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Fiber cladding: |
Fluorine-doped silica cladding |
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Fiber buffer/coating: |
Polyimide coating except where noted |
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Fiber bundle: |
6 illumination fibers around 1 read fiber, plus 1 fiber to monitor illumination |
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Operating temperature range: |
-20 °C to 80 °C |
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Numerical aperture: |
0.22 ± 0.02 (yields an acceptance angle of 24.8° in
air) |
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Probe ferrule: |
Stainless steel |
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Probe connector(s): |
Premium-grade SMA 905 Connectors for QR-series
probes,
Laboratory-grade SMA 905 Connectors for R-series probes |
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Breakout: |
Midway of assembly at 1 meter |
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Total probe
length: |
2 meters long for fiber assembly, 76.2 mm long for
probe ferrule = 2.076 meters total length; custom lengths available |
Reflection Probes with Reference Leg
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Item Code |
Wavelength Range |
Core Diameter |
Fiber Jacketing |
Probe Ferrule |
LTBR* |
STBR** |
Price |
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QR200-REF-UV-VIS |
300-1100 nm |
200 µm ± 4 µm |
silicone monocoil |
6.35 mm OD |
8 cm |
4 cm |
Call for Price |
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QR200-REF-VIS-NIR |
400-2500 nm |
200 µm ± 4 µm |
silicone monocoil |
6.35 mm OD |
8 cm |
4 cm |
Call for Price |
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R200-REF-UV-VIS |
300-1100 nm |
200 µm ± 4 µm |
zip tube blue PVDF |
6.35 mm OD |
8 cm |
4 cm |
Call for Price |
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R200-REF-VIS-NIR |
400-2500 nm |
200 µm ± 4 µm |
zip tube blue PVDF |
6.35 mm OD |
8 cm |
4 cm |
Call for Price |
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R200-7-SR |
200-1100 nm |
220 µm ± 4 µm |
silicone |
¼” OD x 3” SS |
8.8 cm |
4.4 cm |
$495 |
* LTBR stands
for Long Term Bend Radius, the bend radius allowed long term (such as for
storage) before damaging the fiber.
** STBR stands for Short Term Bend Radius, the momentary bend radius
allowed before damaging the fiber.
Sample Applications
| Reflection from
Solid Surfaces for Color and Appearance, Chemical Composition |
Backscattering in
Liquids and Powders for Color and Appearance, Chemical Composition |
| Plastics, metals,
paints and coatings; thin films and optical filters |
Milk and other
beverages |
| Inks, dyes and graphics
arts |
Paints, inks and dyes |
| Industrial textiles and
clothing |
Resins and bulk powders |
| Biomedical samples such
as human skin and other cellular tissue |
Suspended particulate
matter in slurries and turbid liquids |
| Plants, marine life |
Fluorescence of liquid
samples |
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Contact an Ocean Optics Applications Scientist
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