Mightex Multi-Wavelength beam combiners combine two LED collimators of different wavelengths into a single collimated beam. Multiple combiners can be cascaded to combine more than two LED collimator sources. At the heart of the beam combiner is a high-performance dichroic beam splitter that combines two wavelengths with > 95 % efficiency. A neutral beam splitter is also available as a lower-cost solution for applications where maximum light throughput is not required.
Features
Combines two LED collimator sources into a single collimated beam
Cascadable for more than two sources
Precision locking tilt adjustment on each port
High-efficiency dichroic beam splitters
Low-cost neutral beam splitters available
Integrated filter well for each beam
Wide range of available wavelengths
Multiple mounting features for lab and OEM applications
Microscope adapters available
Applications
Illumination for photonics applications
Fiber coupling w/ optional focusing module
Microscope illuminator
General purpose beam combiner or splitter
Beam combiners are characterized by the edge wavelengths of their dichroic beam splitters. Please use the following diagram and check the Specification table to select the correct beam combiner for intended LED collimator source.
The beam combiner includes multiple mounting holes and threads so that it can be easily integrated into a system. Each input port features a fine 2-axis tilt adjustment to allow precise alignment of the LED collimator sources relative to system optical axis. A robust locking mechanism is also provided to maintain alignment over time. Additionally, adapters are also available for coupling to major brands of microscopes.
Adding optical filters to the input ports
A filter well (see diagram below) is integrated into each input port so that a φ 1” or φ 25 mm optical filter can be inserted in between the LED source and the beam splitter. Narrow band filters and polarizers may be used to clean up LED spectrum or change the polarization state of the output beam. Here are the dimension requirement for the dichroic/beamsplitters to be fit into the beam combiner cubes:
Length: 34~36 mm
Width: 25~26.5 mm
Thickness: 1mm recommended, 1.5 mm max.
Connecting multiple beam combiners
Multiple beam combiners can be connected using connecting plates (sold separately). See below video for example. A full instruction on how to build a Multi-Wavelength Collimated LED Sources can also be found at the manufacturer's website.
Connecting 11-mm aperture collimated LED sources
Currently, Mightex’s multi-wavelength beam combiners can only be used to DIRECTLY combine 22 mm-diameter Collimated LED Sources. For 11 mm-diameter collimated LED sources, (as shown below) a mechanical adapter (P/N: ACC-BC25-011) can be used to attach the LED sources to the beam combiners, before the 11-mm diameter collimated LED sources can be combined. We don’t yet have beam combiners for 38 mm- and 48 mm-diameter collimated LED sources.
Mightex BLS-series BioLED light sources are modularized fully-customizable turn-key solutions for optogenetics, fluorescence excitation, and other biophotonics applications. Precisely-timed and high-intensity light pulses are required in optogenetics experiments to activate channelrhodopsins (ChR2, ChR1 etc.) and halorhodopsins (NpHR) in order to excite and inhibit neurons. To meet these requirements, Mightex has developed a proprietary “IntelliPulsing” technology to allow BLS-series sources to output significantly higher power in pulse mode than what the LEDs are rated for in CW mode.
Features:
High-power UV/VIS/NIR/white fiber-coupled LED’s
Interchangeable fiber with SMA connector
No moving parts in optical path
Multiple mounting features for lab and OEM applications
Optional LED controllers
Compact, machined metal housing with integrated heat sink
