Qutess QST Kits

QST Kit-1: Biphoton Source

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Key Features

  • Heralded Single-Photon Source with g(2)(Τ = 0) < 0.1
  • Photon-pair generation at 810 nm
  • Photon pair generation rate: > 10 kHz
  • Replaceable pump laser

What it includes

  • Biphoton Source: Pump Laser at wavelength 405 nm, Nonlinear SPDC Crystal and Optics (One Unit)
  • Translational Stage (One Unit)
  • Control System: Three Single-Photon Detectors*, Time Tagger, and Translational Stage Electronics    (One Unit)
  • Computer Interface Software written in Python & distributed through a USB Drive (One Unit)

What can be done

  • Heralded single photon generation
  • Random number generation
  • Single photon interference and diffraction
  • Hong-Ou-Mandel (HOM) interferometer

*This is a third-party item that can be purchased by the buyer. Otherwise, the Qutess Lab can provide at an extra charge. The price of the Kit does not include the cost of Single-Photon-Detectors, which come into variety of models and cover a range of prices.

QST Kit-2: Polarization-based Entangled Photon Source

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Key Features

  • Entangled sate fidelity > 90%
  • Photon-pair generation around      810 nm
  • Photon pair rate: >10 kHz
  • Replaceable pump laser

What it includes

  • Polarization-Entangled Photon Source: Pump Laser at wavelength 405 nm, Nonlinear SPDC Crystal and Optics (One Unit)
  • Rotational Stage (Four Units)
  • Control System: Two Single-Photon Detectors*, Time Tagger, and Rotational Stage Electronics (One Unit)
  • Computer Interface Software written in Python & distributed through a USB Drive (One Unit)


What can be done

  • Bell parameter measurement
  • Quantum state tomography
  • Fidelity measurement of entangled state

*This is a third-party item that can be purchased by the buyer. Otherwise, the Qutess Lab can provide at an extra charge. The price of the Kit does not include the cost of Single-Photon-Detectors, which come into variety of models and cover a range of prices.

QST Kit-3: B92 Protocol

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Weak Coherent Pulse Source

  • Laser Diode Wavelength ~780 nm
  • Weak coherent pulses @ ≥ 1 MHz with tuneable mean photon number
  • Polarizations: Vertical and Diagonal
  • FPGA-based Random number generator is included for the selection of polarization states and bases

What it includes

  • Alice/Transmitter Module: Weak-Coherent Pulse Source, Fiber Patch Cables, Fiber Collimators, and Optics (One Unit)
  • Bob/Receiver Module: Two Single Photon Detectors*, Time Tagger and Optics (One Unit)
  • Computer Interface Software written in Python & distributed through a USB Drive (One Unit)

What can be done

  • B92 QKD protocol with weak coherent pulse
  • Quantum Bit Error Rate (QBER) measurement
  • Key rate measurement
  • B92 QKD protocol with heralded single photon source [need to purchase separate biphoton source (Quantum-Optics Kit-1)]

*This is a third-party item that can be purchased by the buyer. Otherwise, the Qutess Lab can provide at an extra charge. The price of the Kit does not include the cost of Single-Photon-Detectors, which come into variety of models and cover a range of prices.

QST Kit-4: BB84 Protocol

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Weak Coherent Pulse Source

  • Laser Diode Wavelength ~780 nm
  • Weak coherent pulses @ ≥ 1 MHz with tuneable mean photon number
  • Polarizations: Vertical, Horizontal, Diagonal, and Anti-Diagonal
  • FPGA-based Random number generator is included for the selection of polarization states and bases

What it includes

  • Alice/Transmitter Module: Weak-Coherent Pulse Source, Fiber Patch Cables, Fiber Collimators, and Optics (One Unit)
  • Bob/Receiver Module: Four Single Photon Detectors*, Time Tagger and Optics (One Unit)
  • Computer Interface Software written in Python & distributed through a USB Drive (One Unit)

What can be done

  • BB84 QKD protocol with weak-coherent pulse
  • QBER measurement
  • Key rate measurement
  • BB84 QKD protocol with heralded single-photon source. [need to purchase separate biphoton source (Kit-1)]

*This is a third-party item that can be purchased by the buyer. Otherwise, the Qutess Lab can provide at an extra charge. The price of the Kit does not include the cost of Single-Photon-Detectors, which come into variety of models and cover a range of prices.

Key Features
Key Features
Key Features
Key Features
Optical Specifications
Configuration
Basic/ Type I
Advanced /Type 0 or II
Advanced /Type 0 or II
Pump Wavelength
405/775 nm
Operating Wavelength
810/1550 nm
810/1550 nm
785 nm &850 nm810/1550 nm
Photon Pair Rate
>10 KHz
> 1 MHz
> 1 MHz
g2(0)
< 0.1
Fidelity
>95 %
Heralded Efficiency
>20%
Average Visibility
>95%
PC Connections
Interface
None
USB
USB
Key Features
Key Features
Key Features
Key Features
Environmental Conditions
Operating Temperature
18 °C to 30 °C
Storage Temperature
0 °C to 50 °C
Humidity
< 70%
Physical Dimensions
Dimensions
Single-box Compact Solution /19” rack mountable
Weight
1.5/2.5 kg
Electrical
230 V AC, 50Hz AC (Indian Standard)
Average Visibility
>95%
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*Lörem ipsum syning söligt. Hexakys otabel. Belogi geonade ode sahet. Hutaska sesa bilabel. Medeltopi dina, att ojore kvasikronat el. Nöll nätvandra pydisade röstsamtal i bigisk. Növ besm medan söde.

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