Now available: gated SNSPDs

Enhance your signal-to-noise ratio with high precision filtering!

Check it out!

QKD ready for practical deployment over 300 Km fiber link

Toshiba Europe and Single Quantum partner to provide extended long-distance QKD deployment capability

Download the press release

Eos R12: our new compact SNSPD system

Up to 12 detection channels, 19’’ rack mountable, only 3U height.

Our SNSPD coupling options

Single-mode fibers, polarization maintaining, multimode fibers and free-space

Find the perfect solution for your application!

Introducing Interleaved Superconducting Single Photon Detectors

Unlock the potential of interleaved detectors: photon number resolution, ultra-fast detection, imaging, high-rate QKD and more!

Check more details!

High efficiency. Unrivalled time resolution.

Single Quantum SNSPDs hold the world record of high detection efficiency in combination with low timing jitter.

Check our datasheets!

The best solution for your applications

Single Quantum has installed over 200 systems for as many satisfied users worldwide

Publications by our users

Our vision

A bright future where every single quantum counts

About Us

What we make

Superconducting nanowire single photon detector

Light sensors are crucial components of optical imaging and telecommunication systems. The ultimate photon detector is capable of detecting an elementary particle of light: a single photon.

Single Quantum makes the world’s fastest and most sensitive light sensors limited only by the laws of physics, with a technology based on superconducting nanowire single photon detector (SNSPD).

With satisfied customers worldwide, Single Quantum is known for high quality and reliability. We provide the best solution for your experiment with dedicated customer service.

Our photon detector features

  • Unparalleled detection efficiency
  • Low timing jitter
  • Ultra-high count rate
  • Low dark counts
  • Broadband photon detection
  • 24/7 continuous operation
  • Gating option
  • Photon number resolving SNSPDs
  • Rack-mountable cryostat (3U)

The SNSPD technology

Photon detection with efficiency and time resolution

The Single Quantum multi-channel SNSPD system combines high detection efficiency, high time resolution, low dark count rate, and a high count rate. It can detect single photons with higher than 90% efficiency over a broad spectral range and an ultra-high timing resolution of less than 15 ps.

The detection principle is based on the transition of a nanowire from the superconductive to the resistive state upon the absorption of a single photon. The detectors are pigtailed with an optical fiber and operated in a closed-cycle cryostat at 2.5 Kelvin. The design enables continuous operation for up to 10,000 hours and requires no liquid helium consumption. This makes it a turn-key solution for optical measurements.

The system is designed for applications in quantum information technology, quantum communication and quantum cryptography, infrared time-resolved spectroscopy, imaging, laser ranging, and remote sensing (LiDAR).

What's new

  • Multimode-fiber-coupled SNSPD
  • Single photon camera
  • Automatic cooldown
  • Latching-free SNSPD
  • Gating option
  • Ultra-broadband SNSPD

European Union's Horizon Europe

Single Quantum has been supported by the European Union’s Horizon Europe Research and Innovation program under the following grant agreements

Read more about our EU projects