Quantum technologies take advantage of quantum mechanical effects to solve problems limited by current classical alternatives. Single photons are promising candidates for a broad range of applications in quantum information, quantum metrology, and, perhaps one of the most promising technologies, the realization of a quantum computer. The objective of QUBIG is to provide complete systems for single photon manipulation that brings photonic quantum technologies to the next level. To this end, QUBIG has developed in recent years electro-optic devices and tailored electronic drivers specifically for the manipulation of the physical properties of individual photons.
SINGLE PHOTON MANIPULATION
QUBIG is a world-leading expert in the field of light modulators and has dedicated significant effort to the development of high-performance electro-optic devices and matching driver electronics for precision manipulation of the Phase, Amplitude, and Polarization of individual photons with unprecedented accuracy. Our unique high-voltage technology and active mitigation of piezo-electric resonances allow us to reach rise times down to 5ns and up to 31-point accuracy for phase, polarization, and amplitude while keeping a very high transmission.
TIME DOMAIN MULTIPLEXING
Time-domain multiplexing offers a simpler hardware architecture for building fault-tolerant quantum computers. A small number of active components allows for the processing of a large number of modes. Key elements of this architecture are variable beam splitter (VBS) which consists of a programmable phase shifter and a programmable amplitude modulator .
QUBIG offers its unique programable VBS technology tailored for quantum computing applications.
KEY FEATURES: HVOC-SERIES
- High transmission: >99.5% (ER>300:1)
- Arbitrary polarization & phase state generation with >30 points resolution
- Pulse width: >=100ns | rise time:
- Active compensation of acoustic resonances
 XANADU Quantum computational advantage with a programmable photonic processor, Nature 606, 75–81 (2022)
 MPQ: Efficient generation of entangled multiphoton graph states from a single atom. Nature 608, 677–681 (2022)
 CNRS: Interfacing scalable photonic platforms: solid-state based multi-photon interference in a reconfigurable glass chip, Optica Vol. 6, Issue 12