Overview

OZ Optics Bright Polarization-Entangled Photon Source - Broadband Telecom

OZ Optics' bright entangled photon sources capitalize on the high optical confinement within a periodically poled nonlinear waveguide (PPNW) to achieve excellent efficiency and abundant photon pairs. Photons are generated via spontaneous parametric down-conversion (SPDC) within a periodically poled lithium niobate (PPLN) type-0 waveguide, placed within a fiber-based Sagnac loop. The PPNW is thermally stabilized to maintain the ideal phase matching condition. Upon creating the photon pairs, the pump photons and associated fluorescence noise are completely filtered out from the remaining pairs via a built-in set of optical filters. The highly stable performance is achieved through the self-compensation effect of an all-in-fiber Sagnac interferometer. This is combined with a single frequency external cavity laser operating at 775 nm with an ultra-narrow linewidth. As a result, bright, high-performance and low-noise entangled photon sources operating at room temperature are realized. The polarization-entangled photon pairs are generated to cover a broad spectral bandwidth of 80 nm, centered at 1550 nm in the telecom C-band.

Features 

• Highest counts/coincidence rate available in the market
• High Heralding efficiency and excellent fidelity
• Turn-key, highly stable, room temperature operation
• Rugged, alignment free, proprietary design
• Built-in noise-suppression filters
• Built-in stable pump laser with variable attenuator
• Customizable

Applications

• Quantum key distribution
• Quantum computing and information processing
• Quantum LIDAR
• Subsystem integrable for quantum communication

OZ Optics Bright Polarization-Entangled Photon Source - Narrowband Telecom

OZ Optics' bright entangled photon sources capitalize on the high optical confinement within a periodically poled nonlinear waveguide (PPNW) to achieve excellent efficiency and abundant photon pairs. Photons are generated via spontaneous parametric down-conversion (SPDC) within a periodically poled lithium niobate (PPLN) type-2 waveguide, placed within a fiber-based Sagnac loop. The PPNW is thermally stabilized to maintain the ideal phase matching condition. Upon creating the photon pairs, the pump photons and associated fluorescence noise are completely filtered out from the remaining pairs via a built-in set of optical filters. The highly stable performance is achieved through the self-compensation effect of an all-in-fiber Sagnac interferometer. This is combined with a single frequency external cavity laser operating at 775 nm with an ultra-narrow linewidth. As a result bright, high-performance and low-noise entangled photon sources operating at room temperature are realized. The polarization-entangled photon pairs are generated within a narrow spectral bandwidth of a few nanometers in the C Band, centered at 1550 nm.

Features 

• Highest counts/coincidence rate available in the market
• High Heralding efficiency and excellent fidelity
• Turn-key, highly stable, room temperature operation
• Rugged, alignment free, proprietary design
• Built-in noise-suppression filters
• Built-in stable pump laser with variable attenuator
• Customizable

Applications

• Quantum key distribution
• Quantum computing and information processing
• Quantum LIDAR
• Subsystem integrable for quantum communication
• High-dimensional quantum information processing
• Polarization and frequency superdense teleportation

OZ Optics website