The SpectralLED® Fiber Optic Output configuration provides flexible illumination for applications where space is limited.

Systems can be configured with multiple outputs enabling several devices to be simultaneously illuminated at different working locations. Collimating optics are included at the fiber distal end, and custom fiber diameters and lengths are available.

The SpectralLED Tunable Light Source incorporates up to 35  discrete wavelengths for synthesis of commercially available light sources or based on spectra that you import. The platform is easily adaptable for automated test systems and production line integration, with integrated optical feedback and temperature control to ensure rock-solid stability and consistent results.


  • Fluorescence excitation
  • Camera and image sensor calibration
  • Photodiode detector responsivity characterization
  • Spectrum / illuminant simulation
  • Diagnostic medical imaging

Unprecedented Resolution & Accuracy

  • Wavelength options from the UVA to the Near Infrared
  • Quickly simulate any CIE Illuminant or Macbeth™ / X-  RITE™ Color Patch
  • Built-in RMS spectral fitting for simulation of user imported spectra
  • Constant current drivers & built-in optical feedback ensure accurate & flicker-free output in real-time
  • All solid-state design for rapid start-up, repeatable performance and long operating lifetime
  • ISO/IEC 17025 accredited by NVLAP (NVLAP lab code 200823-0) for calibration accuracy

          Fiber Outputs

          Fiber Length

          Fiber Diameter


1.5 m

6.35 mm

  [Most systems are custom configured – please consult factory]

Please contact us with your custom & OEM requirements

  RS-7-3  Specifications

Optical Geometry

Typically 0.55 NA (fiber dependent)

Spatial Uniformity

Typically > 70% (fiber dependent)

Radiance Range

Up to 500 µW/cm2 (at 5cm, fiber and spectrum dependent)

Luminance Range

Up to 1,000 lux (fiber and spectrum dependent)

  Optical Specifications

Spectral Range

380 nm to 1,000 nm  (Custom ranges are available on request, including SWIR options)

Spectral Output

32 discrete LED channels + 3 broadband LED Channels

Visible resolution ~ 15 nm, NIR resolution ~ 50 nm (typical channel spacing)

Spectral Peaks

395nm, 405nm, 420nm, 430nm, 450nm, 460nm, 475nm, 495nm, 505nm, 520nm, 525nm, 535nm, 570nm,  595nm, 610nm, 620nm, 630nm, 637nm, 660nm, 675nm, 685nm, 700nm, 715nm, 730nm, 750nm, 760nm,  780nm, 805nm, 850nm, 895nm, 940nm, 965nm

2,700K Warm White, 3,000K Warm White, 6,500K Cool White  (Custom configurations available)

Spectral Bandwidth

Typical: Visible 20nm FWHM, NIR 50nm FWHM

CCT Range

1,900K to 40,000K

Preset Spectra

CIE Illuminants A, B, C, D50, D55, D65, D75, E, F1-F12, MacbethTM / X-RiteTM Color Patches

Custom Preset Spectra

Configurable at time of order via API. Contact factory for details

  Accuracy Specifications

Illumination Stability

≥ 99.99% after 50 ms for radiance or after 2,000 ms for color

Illumination Accuracy

± 1% Absolute, NIST traceable

Spectral Accuracy

± 1 nm centroid wavelength

Color Accuracy

CIE 1931 x, y ± 0.003


< 1 % RMS of full scale

Temperature Stability

Within ± 1° C via active TEC

Long-term Drift

Output ≤ 2%  Spectral ≤ 1 nm  (channel dependent)

  Electrical Specifications

Electrical Resolution

16 bit DAC for channel current drivers  24 bit ADC for internal radiance monitor feedback

Dynamic Range Adjustment

4-5 decades typical  (spectrum dependent)

LED Control

Pure DC constant current with floating differential sensing

  General Specifications


Firmware includes full spectral calibration with spectral fitting, preset storage, real-time optical feedback,  radiometric and photometric units supported

Interface Connectors

USB 2.0 type B and DB-9

Interface Protocol

Simple ASCII commands with optional binary block transfer

Supported Operating Systems

USB drivers for Windows, OSX and Linux via FTDI virtual COM port  Legacy RS-232 serial port for integration (no OS required)

Input Voltage and Power

100 to 240 VAC at 50-60Hz, 600W maximum


Height 405mm (16 in), Width 460mm (18.1in), Depth (305mm (12in). Weight 17.5 kg (38.6 lbs)


RS-7 Wavemon™

Multi-channel photodiode system provides amplitude feedback & real-time wavelength measurements

Specifications are subject to change without notice

Most systems are custom-configured. Please contact the factory to discuss your needs in terms of number of fibers, fiber type, fiber length and fiber termination options.

RS-7 WavemonTM   Multi-channel photodiode system with amplitude feedback and real-time wavelength measurement

The Wavelength Monitor System is a multi-channel photodiode system which provides amplitude feedback and real-time wavelength measurements. It consists of three photodiodes each with an independent transimpedance amplifier circuit. Proprietary optical filtering techniques allows for wavelength accuracy of +/-0.25nm and repeatability of +/-0.05nm. The Wavelength Monitor PCBA, photodiodes, and optical filter assembly is temperature stabilized using a Peltier cooler and thermistor in a PID feedback loop. This assembly is a discrete module which can be used with any RS-7 model.

Please contact us with your custom & OEM requirements