Ocean Optics - NIR Optical Bench Options

NIRQuest Series Optical Bench Options
NIRQuest Spectrometers can be customized for a variety of applications by selecting different gratings, slits and other optical bench accessories.

SMA 905 Connector
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.

Fixed Entrance Slit
Another option available with NIRQuest user-configured spectrometers is selecting the size of the entrance aperture. Entrance slits are rectangular apertures, 1-mm tall and various widths from 10 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.) A slit is permanent; it only can be changed by our technicians. 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.

Slit	Description	NIRQuest 512	NIRQuest 512-2.2	NIRQuest 256-2.1	NIRQuest 256-2.5	Price
SLIT-10	10-µm wide x 1-mm high	~1.3 pixels	~1.3 pixels	~1.5 pixels	~1.5 pixels	$174
SLIT-25	25-µm wide x 1-mm high	~2.0 pixels	~2.0 pixels	~1.7 pixels	~1.7 pixels	$174
SLIT-50	50-µm wide x 1-mm high	~2.3 pixels	~2.3 pixels	~2.0 pixels	~2.0 pixels	$174
SLIT-100	100-µm wide x 1-mm high	~4.2 pixels	~4.2 pixels	~2.5 pixels	~2.5 pixels	$174
SLIT-200	200-µm wide x 1-mm high	~7.9	~7.9	~4.0	~4.0	$174

Choosing a Grating & Wavelength Range
Click here for the the NIRQuest Series Grating Selection Chart.

Detectors
For NIRQuest Spectrometers, we offer four different InGaAs linear array detectors: two 512-element arrays and two 256-element arrays. The Hamamatsu detectors used in the NIRQuest Optical Bench are InGaAs photodiode linear arrays with each pixel connected to a charged amplifier array consisting of CMOS transistors. These detectors deliver high sensitivity and stable operation in the near infrared. The detectors all include onboard thermoelectric cooling. A thermistor monitors the array's temperature and a thermoelectric device can cool the arrays to 35 °C below ambient, keeping the array stable to within ±0.1 °C. In addition, you can set and monitor the detector's temperature via software. The detector is included with the price of the NIR Spectrometer.

Detector Specification	NIRQuest512	NIRQuest512-2.2	NIRQuest256-2.1	NIRQuest256-2.5
Detector:	Hamamatsu G9204-512 InGaAs linear array	Hamamatsu G9206-512W InGaAs linear array	Hamamatsu G9206-256 InGaAs linear array	Hamamatsu G9208-256 InGaAs linear array
Detector range:	850-1700 nm	900-2200 nm	900-2050 nm	900-2550 nm
Pixels:	512	512	256	256
Pixel size:	25 µm x 500 µm	25 µm x 500 µm	50 µm x 250 µm	50 µm x 250 µm
Pixel well depth:	188 Me- electrons	188 Me- electrons	188 Me- electrons	188 Me- electrons
Defective pixels:	0%	0%	5%	5%

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NIRQuest Series Optical Bench Options NIRQuest Spectrometers can be customized for a variety of applications by selecting different gratings, slits and other optical bench accessories.

NIRQuest Series Optical Bench Options
NIRQuest Spectrometers can be customized for a variety of applications by selecting different gratings, slits and other optical bench accessories.