PRODUCTS

Qubitekk Entangled Photon Source with Integrated Laser

Available for Purchase

Entangled photon sources are critical to the demonstration and application of many quantum phenomena. Qubitekk’s general-purpose, polarization entangled photon source allows users to spend more time using their entangled photons, and less time constructing and maintaining their source. Qubitekk’s post-selected entanglement source utilizes a bi-photon source connected to an external, removable, non-polarizing beamsplitter to produce post-selected, polarization entangled photons. A useful tool for R&D and product development, Qubitekk’s source is designed to be a rugged, compact, stable, and easy-to-use component for both academic, R&D, and industrial applications.

PRODUCT INQUIRY

SKU:

QBTK001

Specs

Integrated, continuous-wave 15mW single frequency pump laser at 405nm
Internal 15mm PPKTP and 7.5mm KTP compensating crystal for Type II down-conversion around 810nm
Precision control of internal crystal temperature (user adjustable)
Polarization-maintaining fiber on source output for easy integration with fiber optic solutions
>10,000 photon pairs/mW/s source brightness
Does not need alignment
USB communication allows tuning of output wavelength and brightness

Parameter	Symbol	Minimum	Maximum	Units

Crystal Temperature Stability			0.2	°C
Pair Production Rate¹	RC	50,000		pairs/s
Signal Wavelength	λs	800	815	nm
Visibility		82%
Degenerate spectrum FWHM	Δλ		1	nm
Pump Power		10	20	mW
Single Wavelength	λs	800²	815³	nm
Idler Wavelength	λi	805³	820²	nm
Pair Production Efficiency¹		3,000		pair/s/mW
Coincidence-to-accidental ratio	CAR	50