EPS-1000 Polarization-Entangled Photon Source Narrowband 810 nm

AMS item number: SW11986

Signal/Idler Degeneracy Wavelenght 810 nm; Photon Pairs Bandwidth FWHM ~3 nm; Pair-generation... more

Product information "EPS-1000 Polarization-Entangled Photon Source Narrowband 810 nm"

Signal/Idler Degeneracy Wavelenght 810 nm; Photon Pairs Bandwidth FWHM ~3 nm; Pair-generation rate >1x10⁵ Pairs/Second; Max. Output Power of Pump Laser 12 mW, variable.

OZ Optics provides entangled photon sources featuring a pair of periodically poled crystals housed within a Mach-Zehnder interferometer. These sources utilize type-2 spontaneous parametric down-conversion (SPDC) to generate polarization-entangled photon pairs. Multiple polarization displacers (PDs) are strategically employed to divide the pairs into two output ports, conveniently located on the front panel as depicted in the photo. Photon pairs are centered at 810 nm with a bandwidth of just a few nanometers.

Each source is equipped with a wavelength-stabilized pump laser, variable optical attenuator, and temperature controller to finely adjust phase matching parameters, optimizing efficiency. Integration of a rotatable half-wave plate (HWP) enables control over the number of photon pairs generated in each crystal. Consequently, users can establish polarization reference bases while easily toggling between polarization and energy domains. This feature is anticipated to greatly support the quantum optics R&D community.

Key features:

Turn-key and room-temperature operation
Built-in pump laser and noise-suppression filters
Controllable accidental photons rate

Applications: Quantum Information Science, quantum metrology, quantum key distribution, quantum computing and information processing