Ruby & Emerald EPG Benchtop Polarization Entangled Photon Sources

AMS item number: SW11788

810-1560 nm; Wavelength Accuracy ±2 nm; Pair-generation Rate 1x10 5 -4x10 6 Pairs/s;... more

Product information "Ruby & Emerald EPG Benchtop Polarization Entangled Photon Sources"

810-1560 nm; Wavelength Accuracy ±2 nm; Pair-generation Rate 1x10⁵-4x10⁶ Pairs/s; Coincidence-to-accidental Ratio 100-1000; Two-photon Interference Visibility 95%-99%

OZ Optics’ Ruby and Emerald systems are crystal-based polarization entangled photon sources which integrate the crystals responsible for spontaneous parametric down-conversion into photon pairs inside a self-balanced interferometer engine to generate the wavelength/polarization entanglement in a robust benchtop turn-key device.

Each source comes equipped with a wavelength-stabilized pump laser, a variable optical attenuator, and a temperature controller to fine tune phase matching parameters to realize optimal efficiency. The components are packaged inside a rugged aluminium housing with an on/off power switch and keyed laser control. Signal and Idler photons are available with the pump wavelength removed at separate output ports on the front panel.

Ruby entangled photon sources make use of type-0 down-conversion to generate a broadband biphoton spectrum, with a bandwidth of several tens of nanometers. Emerald entangled photon sources make use of type-2 down-conversion to generate a narrow bandwidth biphoton spectrum, with a bandwidth of a few nanometers. In both cases the interferometer engine ensures photon entanglement regardless of the down-conversion type.

AMS Technologies can assist in selecting the preferred version (Ruby or Emerald) depending on your target wavelength and application – contact the AMS Technologies photonics experts to discuss your requirements.

Key Features:

High-quality, Turn-key Polarization Entanglement
Custom Wavelength Offerings
Rugged, Room Temperature Operation
Two (Signal/Idler) Outputs or Single Output
Signal/Idler Degeneracy Wavelength: 810 nm to 1560 nm
Signal/Idler Degeneracy Wavelength Accuracy: ±2 nm (Typ.)
Pair-generation Rate: 1x10⁵ to 4x10⁶ Pairs/s
Coincidence-to-accidental Ratio: 100 to 1000
Fidelity5 to |Ψ⟩=(|HV⟩+|VH⟩)/√2: 95% to 99%
Two-photon Interference Visibility: 95% to 99%
Power Supply: 5 V, 8 A (Ruby), 12 V, 6 A (Emerald)
Dimensions: 350 x 165 x 125 mm
Weight: ~6 kg

Applications: Quantum Information Science; Quantum Metrology; Quantum Key Distribution; Quantum Computing and Information Processing