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​​SM241 NIR Laser Spectrometer

The Choice for Spectral NIR Laser Applications


- Less expensive alternative to Germanium or InGaAs systems
- Compact system can be handheld or securely mounted
- Flexible optical input direct to slit or via fiber
- High-performance electronics
- Allows spectral measurements between 900 - 1650nm
- USB 2.0 interface with 16-bit dynamic range available
- Support up to 8 multi-channel configuration


The SM241 is a compact CCD-based spectrometer designed for NIR laser applications. Spectral Products' IR up-conversion phosphor CCD coating breaks the standard silicon-based CCD detectors array sensitivity barrier of 1100nm to allow spectral measurements up to 1700nm. This technology makes the SM241 a lower-cost alternative to Germanium or InGaAs systems. The SM241 optical bench includes oversized gold-coated mirrors and gratings to accommodate NIR light collection and analysis. Maximum spectral coverage with this spectrometer is 900 nm to 1700 nm (reduced coverage window size within 900-1700nm will increase spectral resolution and light sensitivity). But although the SM241 can measure up to 1700nm, due to its low sensitivity, it is limited only to use in the applications measuring very narrow band-width and strong lights like lasers in this NIR range.

Standard interfaces include a USB 2.0 interface and a PCI card interface with a 16-bit extended dynamic range. Software support includes an SDK and DLLs for dedicated applications development and our SM32Pro windows-based spectral acquisition and analysis software. Both standard and legacy interface designs provide support for advanced acquisition programming and external triggering.

NOTE: Please click SM241 for the brochure file.


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- SM32Pro & SMProMX- Windows (32-bit/64-bit) based software for data acquisition and analysis

- Data export, zoom in and out, spectrum overlays, and more features

- Signal average and integration time control

- DLL libraries available for easy user software development in DOS and Windows

- VC++ / VB / LabView / Matlab examples available


SM 241



Pixel: 2048
Sensing Pixel size: 14µm x 200µm
Sensitivity: 30 V/mJ/cm²

Spectral Resolution

1.0 to 10nm depending on the slit and grating choices

Spectral Range

900 - 1650nm

Spectrograph f#


Fiber Coupler

SMA 905 or FC standard

Stray Light

better than 0.001

Slit Options

10, 25, 50, 100, 200, 400µm

Computer Interface

USB 1.1 / 2.0 16-bit (support up to 8 multi-channel configuration)


Windows 98/Me/2000/XP/VISTA/Win7/Win8.1/Win10 (both 32/64bit)

SM32Pro & SMProMX (free with spectrometer)
Includes DLL libraries and SDKs for easy custom application development

Dimensions (inches)

4.72H x 3.74W x 2.36D inches



Dark Noise RMS

< 60 RMS counts in 16bit @ 35msec integration time

Signal to Noise Ratio


min. Integration Time


Trigger mode

Free Run Mode
External Trigger Mode

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