Noisy Labs

Sensing must aim for the best possible signal-to-noise ratio. Squeezed light reduces photon shot noise compared to conventional laser light. This is a revolutionary approach, especially when the signal can no longer be improved by increasing the light’s intensity.

• With squeezed light, quantum measurement noise, which results from quantum uncertainty, can theoretically be reduced at will. Even restrictions due to Heisenberg's uncertainty principle can be circumvented
• About a dozen research labs worldwide can produce significantly squeezed light. Instead of spending years of research trying to do the same, you can buy directly from the developer of the world's most successful squeezed light technology.
• Sensing can be made more sensitive even at lower laser intensity. This allows sensitive samples to be protected or the risk of accidents with laser radiation to be reduced.
  

Squeezed light is the precursor of the light that will be needed for the optical quantum computer. The necessary GKP states of light can be produced from them, but so far only in theory. If we are able to build quantum computers efficiently in the future, more complicated calculations can be carried out faster and with fewer resources.

• Optical quantum computers will be universal, fault-tolerant and scalable. They will require neither vacuum systems nor ultra-low temperatures. In the long term, it is precisely these advantages over other platforms that could be decisive.
• If you are researching or developing optical quantum computers, don't waste time making squeezed light. Buy here directly from the developers of the world's most successful squeezed light technology.
  

In contrast to sensing, metrology aims to measure constants (as accurately as possible). One example of this is natural constants such as the speed of light in vacuum.
A technical example is the determination of detection efficiencies of photosensors.

• Squeezed light has proven to be a powerful tool for calibrating the detection efficiency of photosensors without the need for a calibrated lamp.
• If the photosensor to be calibrated is used to measure squeezed light in a known setup, the required detection efficiency is obtained directly from the achieved squeeze and the anti-squeeze factors.
  

Quantum key distribution (QKD) is the only method to make the security of communication independent of the potential efficiency of computing algorithms. With QKD, each raw key value is quantum mechanically random and the privacy of the key values owned by two parties can be brought arbitrarily close to 100% by postprocessing the data..

• Normally, QKD only secures the communication channel. However, squeezed Light is also able to secure the remote measuring device. Squeezed Light therefore provides additional protection against side channel attacks.
• ’One-sided device independent QKD’ requires two EPR entangled laser beams, which are created when two squeezed light beams are overlapped on a beam splitter.
• If you are researching and developing in the field of advanced QKD, then don't waste time developing the squeeze lasers yourself. Buy them!