Ocean Optics S2000 - Manual (Page 11)

S2000 Miniature Fiber Optic Spectrometers
Our second-generation miniature fiber optic
spectrometer, the S2000, couples a low-cost,
high-performance 2048-element linear
CCD-array detector with an optical bench
that's small enough to fit into the palm of
your hand. The S2000 is a high-sensitivity,
low-cost UV-VIS-Shortwave NIR
spectrometer, making it especially useful for
fluorescence and other low light level
applications that demand high detector
sensitivity. The S2000 has twice the number
of CCD elements and is nearly 50x more
sensitive than our original, revolutionary
S1000 Miniature Fiber Optic Spectrometer.
The S2000 accepts light energy transmitted
through single-strand optical fiber and
disperses it via a fixed grating across the
linear CCD array detector, which is responsive
from 200-1100
µ
m. Up to seven spectrometer
channels can be added to expand wavelength range, perform multiple tasks or provide reference monitoring. The
master and slave channels are all accessed through a single program for near-synchronous operation.
In addition, an SMA 905 connector allows for easy coupling to an extensive line of fiber optic light sources,
sampling chambers, optical fibers, probes, chemical sensors, and
other spectrophotometric accessories. Ocean Optics offers nearly
500 spectrophotometric accessories that help to create fully
integrated small-footprint tools for optical experimentation in the
lab and in the field.
Operating performance will vary according to a number of factors,
including the spectrometer configuration -- especially the groove
density of the grating and the size of the entrance optics -- as well
as the application itself.
Optical resolution -- measured as Full Width Half Maximum
(FWHM) -- of a monochromatic source depends on the groove
density (lines/mm) of the grating and the diameter of the entrance
optics (optical fiber or slit). The following formulas approximately
calculate the optical resolution of your system in nm (FWHM).
DISPERSION (nm/pixel) = Spectral range of the grating
2048 (number of pixels or detector elements)
RESOLUTION (in pixels) = typical values from slit size or fiber diameter (see below)
5
µ
m slit = 3.0 pixels 50
µ
m slit = 6.5 pixels
10
µ
m slit = 3.2 pixels 100
µ
m slit = 12.0 pixels
25
µ
m slit = 4.2 pixels 200
µ
m slit = 24.0 pixels
OPTICAL RESOLUTION (in nm) = DISPERSION X RESOLUTION
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A collection of single, dual, triple and quadruple channel
S2000 Spectrometers.
An S2000 Miniature Fiber Optic Spectrometer
without its housing.