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China Reliable Quantum Communicate Equipments Supplier & Quantum Security Solution Provider.

Periodically Poled Lithium Niobate Waveguide

The Periodically Poled lithium Niobate (PPLN) Waveguide is one of the key devices in quantum communication and quantum information processing. The PPLN waveguide is widely used in up-conversion single-photon detector, satellite-ground quantum communication interface, telecom-band entangled photon source with high rate, etc. What is morLe, the PPLN chip can also be used to produce optical source in the blue-green region, which is often adopted in the field of laser display. 

The PPLN-WG-UC50-P5-M5-22 series isspecifically designed for telecom-band single-photon detector. The waveguidesare fabricated withreverse proton-exchanging technique, and applied to convert 1550nm photons to 864nm band with low noise. Both the input and output of the waveguide are fiber-pigtailed, making it easy-to-use.

QuantumCTek also provides customized services of PPLN waveguides for various applications.

  1. Full spectrum frequency conversion
  2.  Independent temperature control system
  3.  All-fiber device (output could be the free space)
  4.  Optional fiber type
  1. Up-conversion single-photon detector
  2.  Telecom band entangled photon source
  3.  Satellite-ground quantum communication interface
  4.  Light source for laser display
  5.  Phase and intensity modulator
signal wavelength1550nm
conversion efficiency99% (typ.)
input fiberPM fiber / SM fiber
output fiberPM fiber / SM fiber / MM fiber
pump wavelength1950 nm


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