Ocean Optics - Inventor of the World's First Miniature Spectrometer
Ocean Optics - Inventor of the World's First Miniature Spectrometer

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Ocean Optics - Inventor of the World's First Miniature Spectrometer


MPM-2000 Optical Multiplexer

The MPM-2000 Fiber Optic Multiplexer takes light to a spectrometer or from a light source connected to one of the input ports and distributes it to either 8 or 16 outputs. The light is distributed through the output ports in sequential order, with switching times between channels of less than 150 milliseconds. Multiplexers often are found in process industries, where multiple locations need to be measured with one spectrometer channel and/or light source.

Ocean Optics offers four different multiplexer versions.

High-precision Instrument

All versions of the MPM-2000 include a DC motor, which has excellent speed control without sacrificing power. The motor is on a rotator block and includes an encoder, which converts the incremental movements into a digital pulsed output. Each channel in the multiplexer has a collimating lens connecting to an internal optical fiber system. The MPM-2000 provides accurate measurements with a repeatability of 99% and offers optical throughput of approximately 50%.

Multiple Versions

The MPM-2000 comes with either 2 input channels -- with each input channel corresponding to 8 output channels -- or with 1 input channel and 16 output channels. You must choose either a UV-VIS multiplexer (250-800 nm) or a VIS-NIR (350-2000 nm).

Item Code Description Price
MPM-2000-1x16-UV 1 input, 16 output; UV range Call for Price
MPM-2000-1x16-VIS 1 input, 16 output; VIS range Call for Price
MPM-2000-2x8-UV 2 inputs, 8 outputs; UV Call for Price
MPM-2000-2x8-VIS 2 inputs, 8 outputs; VIS Call for Price

Software Controlled

The multiplexers interface to a PC via an RS-232 port and come with software and a driver for complete PC control. The software allows you full control of the switching order, switching delay time and system calibration.


Dimensions: 230 mm x 200 mm x 150 mm (fits into 19" system: 33TE, 3HE, etc.)
Wavelength range: 250-800 nm (UV/Vis) or 350-2000 nm (Vis/NIR)
Optical throughput: >40% when using standard 400 m fibers
Motor: Direct-current motor
Optical fibers: 400 m diameter optical fibers
Repeatability: >99%
Switching time: 150 milliseconds between adjacent positions
Interface: RS-232 (optional USB)
Power requirement: 24 VDC max, 1.2 A (comes with a WT-24V-E power supply
Connectors: SMA 905


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