Multi-Channel CCD Spectrometers


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Multi-channel spectrometers are used to monitor or measure multiple samples or sources simultaneously. Traditionally, multi-channel imaging spectrometers have been expensive and bulky instruments used only in demanding laboratory and industrial applications. Mightex has leveraged the state-of-the-art optics and CCD cameras to bring to the market a compact and low-cost multi-channel fiber spectrometer that features high spectral resolution and high light throughput.

At the heart of Mightex multi-channel spectrometers is a high-throughput flat-field imaging spectrograph. Multiple input fibers, each represents an independent signal channel, are aligned along the input slit of the imaging spectrograph. Spectrum of each channel is dispersed by a high-efficiency diffraction grating and then imaged on to a 2D CCD sensor. Light from each channel occupies different rows on the CCD sensor. All channels are exposed simultaneously, then rows associated with each channel are binned together to produce a spectrum for the channel. Fiber channels are spaced out properly to essentially eliminate crosstalk between adjacent channels.

The standard CCD camera features a ½ 1.3MP Sony ICX205 imager with a 12-bit ADC. Exposure time (integrating time) can be varied between 50μs and 200s. The electronics hardware also includes trigger input and four programmable digital I/Os for interfacing with other equipment such as a light source. The spectrometer is controlled through a USB2.0 interface which also supplies all the electric power needed to operate the spectrometer. Mightex also integrates other cameras to build custom multi-channel spectrometers.

Input ends of the fibers are connectorized with SMA905 connectors. Sleeves are available to connect the fibers to other SMA connectors. Standard software package includes a full-featured multi-channel spectrometer PC software as well as a software development kit (SDK) for further software development. The software also supports radiometric calibration and photometric calculations.

Specifications: (Click here to download datasheet)

Number of Channel6-
Optical PlatformF/2 High-resolution flat-field imaging spectrograph-
Wavelength Range380 ~ 780nm
Resolution 1 1.2nm
Order Sorting FilterLong-pass-
Entrance Slit5 (also available: 10, 25, 50, 100, 200 or no slit)μm
Input Fiber ConnectorsSMA 905-
Input Fiber NA0.22-
DetectorSony ICX205AL-
Pixel Number1,392 x 1,040-
Pixel Size4.65 x 4.65μm
Effective Pixel Well Depth 2 200000electron
Signal-to-noise Ratio1,000:1(at full scale)-
A/D Resolution12bit
Integration Time0.05 to 200,000ms
Frame Rate15 @ 8bit, 9 @ 12bitfps
Hardware Gain6 ~ 43dB
GPIO4 programmable digital I/Os-
Trigger InputYes-
Trigger Delay< 25μs
PC InterfaceUSB 2.0-
Trigger/GPIO InterfaceDIN8-
PC Operating SystemWindows 2000/XP/Vista/7/8/10  -
Power Consumption1.8W

(1) With a 10μm slit; (2) After binning.

Spectral Resolution(FWHM, nm) vs. Slit Width

Slit Width(μm)















Recommended PC System Configuration
Processor:                        Pentium 4 1.8GHz or higher
Operating System:         Windows 2000, XP, Vista, Windows 7 and 8
RAM:                                512M or greater
Hard Disk Space:           50M for software installation, plus additional space for storing data
USB Host Controller:    USB2.0 Enhanced Controller, which supports USB2.0 High-Speed. (480Mbps).


  • Multiple (6) spectral channels in one compact package
  • No moving parts
  • High spectral resolution
  • High throughput
  • USB2.0 interface
  • No external power required
  • Trigger input
  • Full-featured SDK
  • GPIOs for interfacing with other equipment


  • LED sorting
  • Display measurement
  • Lab research
  • Process control
  • Environment monitoring

Datasheet download
Mightex multi-channel spectrometer datasheet (.pdf file, 957KB)

Software download
Mightex multi-channel spectrometer software package download (.zip file, 7.56MB)

Standard Packing List:

  1. 1x spectrometer
  2. 1x USB cable
  3. 1x set of fiber ribbon
  4. 1x CD (containing User’s Guide, and Windows-based application software with GUI etc)

Product specifications are subject to change without prior notice. All prices are FOB California, unless otherwise stated. Please call/email for volume pricing.