QE Pro Optical Bench Options
Hover over the numbers on the image for more info.
SMA 905 Connector
Light from a fiber enters the optical bench.
Interchangeable Entrance Slit
Use our Range and Resolution calculator to find out how your slit choice affects optical resolution.
Longpass Absorbing Filter
A filter has a transmission band and a blocking band to restrict radiation to a certain wavelength region for eliminating second- and third-order effects.
Light reflects from this mirror, as a collimated beam, toward the grating.
Grating & Wavelength Range
Use our interactive Range and Resolution calculator to find out predicted range and resolution of your spectrometer.
This mirror focuses first-order spectra on the detector plane.
QE Pro spectrometer can be configured for applications in 200-1100 nm range.
OFLV Variable Longpass Order-sorting Filter
Precisely blocks second- and third-order light from reaching specific detector elements.
An internal shutter improves the quality of your dark measurements
Light from a fiber enters the optical bench through the SMA 905 connector. The SMA 905 bulkhead provides a precise locus for the end of the optical fiber, entrance slit, absorbing filter and fiber clad mode aperture.
Light passes through the installed slit, which acts as the entrance aperture. Slits come in various widths from 5 µm to 200 µm.
|SLIT-5||5-µm wide x 1-mm high||~2.0 pixels|
|SLIT-10||10-µm wide x 1-mm high||~2.2 pixels|
|SLIT-25||25-µm wide x 1-mm high||~2.6 pixels|
|SLIT-50||50-µm wide x 1-mm high||~3.3 pixels|
|SLIT-100||100-µm wide x 1-mm high||~4.7 pixels|
|SLIT-200||200-µm wide x 1-mm high||~8.9 pixels|
If selected, an absorbance filter is installed between the slit and the clad mode aperture in the SMA 905 bulkhead. The filter is used to limit bandwidth of light entering the spectrometer. Filters are installed permanently.
|OF1-WG305||Longpass filter; transmits light >305 nm|
|OF1-GG375||Longpass filter; transmits light >375 nm|
|OF1-GG395||Longpass filter; transmits light >395 nm|
|OF1-GG475||Longpass filter; transmits light >475 nm|
|OF1-OG515||Longpass filter; transmits light >515 nm|
|OF1-OG550||Longpass filter; transmits light >550 nm|
|OF1-OG590||Longpass filter: transmits light >590 nm|
The collimating mirror is matched to the 0.22 numerical aperture of our optical fiber. Light reflects from this mirror, as a collimated beam, toward the grating. You can opt to install a standard mirror or a UV absorbing SAG+ mirror.
We install the grating on a platform that we then rotate to select the starting wavelength you’ve specified. Then we permanently fix the grating in place to eliminate mechanical shifts or drift.
This mirror focuses first-order spectra on the detector plane. Both the collimating and focusing mirrors are made in-house to guarantee the highest reflectance and the lowest stray light possible. You can opt to install a standard or SAG+ mirror.
The QE Pro is available with a back-thinned 2D array Hamamatsu detector S7031-1006.
|DET-QE||Detector installed without any variable longpass filter|
|DET-QE-OFLV-200||Detector installed with OFLV-QE-200 variable longpass filter|
|DET-QE-OFLV-250||Detector installed with OFLV-QE-250 variable longpass filter|
|DET-QE-OFLV-300||Detector installed with OFLV-QE-300 variable longpass filter|
|DET-QE-OFLV-350||Detector installed with OFLV-QE-350 variable longpass filter|
|DET-QE-OFLV-400||Detector installed with OFLV-QE-400 variable longpass filter|
|DET-QE-WINDOWLESS||Detector installed with no window options, required for VUV applications|
Our proprietary filters precisely block second- and third-order light from reaching specific detector elements.
- Improve the throughput/sensitivity compared to an inline fiber optic shutter
- Improve the quality of your dark measurements
- Actuation Time: 11ms
- Signal Attenuation 0dB (100% attenuated)
- Easily controlled from the OceanView software