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Beamsplitters

Beamsplitters

Beamsplitters divide a beam of light by wavelength, power, or polarization, reflecting a portion through 90° and transmitting the rest.  The key to selecting a beamsplitter is finding the right combination of power handling and beam displacement for your application.  Our plate and cube beamsplitters are offered with a wide variety of coating options to help you find the ideal fit.

All of our beamsplitters have been designed and manufactured for the highest power handling possible, making use of techniques like optical adhesives, optical contacting, Chemically Activated Direct Bonding (CADB®), and proprietary coating processes to do so.

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Picture for category Plate Beamsplitters

Best for high energy applications, provided that beam displacement, “ghost” beams, and polarization sensitivity can be tolerated.

  • High laser damage threshold
  • Beam offset is ~0.3x thickness of the substrate
  • AR-coated back surface to minimize ghost reflections
  • Available for power or wavelength separation
Picture for category Cube Beamsplitters

Bonded interface avoids beam displacement, but interface can limit power handling (if epoxy is used for bonding).  Ghost reflections are reduced, but still present.

  • No beam displacement
  • Easy to mount, mechanically durable
  • High laser damage threshold options
  • Available for power or polarization separation
Picture for category Beamsplitter Assembly

High energy continuously variable beamsplitters combine a half-waveplate and polarizing beamsplitter, to achieve variable attenuation of the transmitted light. 

  • Transmission range = 1 - 95%, p-polarization
  • Continuously variable for precise control of transmission
  • High power applications (5 J/cm2 @ 1064 nm)
  • Available for Nd:YAG wavelengths from 266 – 1064 nm
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