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Jaz Optical Bench Options
A precision SMA 905 Connector aligns to the spectrometer’s entrance slit and ensures concentricity of the fiber. For an upgrade fee that includes the cost of the custom connector and labor, we will replace the standard SMA 905 Connector with a different connector of your choice. We also offer connector adapters, such as an SMA-to-ST Adapter and an SMA-to-FC Adapter. Please call for details on custom connectors and adapters.
Another Jaz optical bench option is the size of the entrance aperture. Entrance slits are rectangular apertures, 1-mm tall and various widths from 5 µm to 200 µm, with the width determining the amount of light entering the bench. Note that the smallest slit achieves the best optical resolution. (For more on how your slit choice affects optical resolution, click here.) Unlike the fixed slits in most spectrometers, the Jaz slit is designed to be easily interchangeable by a qualified user. This is a great convenience for anyone who needs to adjust the amount of signal entering the spectrometer. Contact an Applications Scientist for additional information about changing slits in the field. Also, you can opt against having a slit, in which case the diameter of the fiber connected to the spectrometer determines the size of the entrance aperture.
You can replace standard aluminum-coated reflective mirrors with our proprietary, UV-absorbing SAG+ Mirrors, which increase reflectance in the VIS-NIR and, in turn, increase the sensitivity of the spectrometer. SAG+ Mirrors are often specified for fluorescence. These mirrors also absorb nearly all UV light, which reduces the effects of excitation scattering in fluorescence measurements. Unlike typical silver-coated mirrors, the SAG+ mirrors won't oxidize. They have excellent reflectivity -- more than 95% across the VIS-NIR. The price of the SAG+UPG is $290.
Predicted Ranges & Resolutions See a series of graphs to demonstrate the predicted Range and Resolution of your Jaz system (Jas has a USB-series optical bench).
The Jaz uses the Sony ILX511B linear silicon CCD array detector. This detector has response from 200-1100 nm, with sensitivity of 75 photons/count at 400 nm and 41 photons/count at 600 nm.
Our OFLV Variable Longpass Order-sorting Filters are applied to the detector’s window to eliminate second- and third-order effects. We use patented coating technology to apply the filter onto the substrate. In fact, we are the only miniature spectrometer manufacturer to offer “clean” first-order spectra.
When you specify a detector with the UV2 Detector Window Upgrade, we replace the detector’s standard BK7 window with a quartz window to enhance the spectrometer‘s performance from 200-340 nm. The UV2 is available with the DET2B-UV Detector.
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Jaz's
spectrometer module is designed to give you options that allow you to configure the bench for your application. Our
Applications Scientists can help you choose the optimum components, or you
can follow this guide to choose an entrance aperture size, detector
accessories, filters, a grating and more. Jaz features an asymmetrical crossed Czerny-Turner optical bench
(which has no moving parts that can wear or break) and an innovative,
replaceable aperture design.
We offer longpass absorbing or blocking
filters; each filter has a transmission band and a blocking band to
restrict radiation to a certain wavelength region for eliminating second-
and third-order effects. These filters are installed permanently between
the slit and the clad mode aperture in the bulkhead of the SMA 905
Connector.
You choose from among 14 gratings for each
spectrometer channel. With each grating, you consider its groove density (which
helps determine the resolution), its spectral range (which helps determine
the wavelength range) and its blaze wavelength (which helps determine the
most efficient range). 
At right is a detector with the L2 lens. This
cylindrical lens, made in-house to ensure aberration-free performance, is fixed
to the detector’s window to focus the light from the tall slit onto the shorter
detector elements. It increases light-collection efficiency and reduces stray
light. It also is useful in a configuration with a large-diameter fiber for low
light-level applications. An L2 Detector Collection Lens is
$174.
