EMPOWERING LASER TECHNOLOGIES

QUBIG GmbH has developed and manufactured high-Q Light Modulators for scientific and industrial applications

ELECTRO-OPTIC MODULATORS - EOM

Our Free-space Electro-optic modulators (EOMs are user-friendly and effective tools that can be used to alter the phase, frequency, polarization, or amplitude of a free-space laser. The modulation spectrum includes DC-coupled phase shifters and high-Q, resonant enhanced EOMs that operate in the kHz, MHz, and GHz range.

The availability of a wide range of crystal materials (AR-coated or Brewster-cut) and large apertures enables the use of high power lasers at UV to IR wavelengths with minimal wavefront distortion and high optical transmission.

ELECTRONICS

PHASE MODULATORS

laser frequency stabilisation - LFS (PDH, FM/MTS)
laser cooling and trapping of neutral atoms/ions/molecules (MOT)
spectral broadening | coherence suppression
quantum state manipulation (e.g. Rydberg, Raman)
spectroscopy

More (PHASE MODULATORS)

BROADBAND PHASE MODULATORS

laser frequency stabilisation (sideband offset-lock)
laser cooling and trapping of neutral atoms/ions/molecules
laser frequency control (master-slave lock)
quantum state manipulation
spectroscopy

PHASE SHIFTERS

Interferometry
Q-Switch
Laser frequency stabilisation (intra cavity)
Intensity control (Mach-Zehnder)
Broadband phase modulation

AMPLITUDE MODULATORS

Mode locking
Lock-In detection
Light chopper
Polarisation modulation
Quantum computation / simulation
Single-photon spatial distribution

QUBIG provides resonantly enhanced, very efficient polarisation shifters that can be converted with appropriate polarisation optics into high-frequency amplitude/intensity modulators. Large spectral bandwidth, very low insertion loss, high optical damage thresholds and extinction ratios up to 30dB enable a wide range of applications.

Laser frequency stabilisation (intra-cavity), interferometry, broadband phase modulation, optical dipole traps for the manipulation of novel quantum technology systems.

POCKELS CELLS

Q-Switch
Beam chopper
Pulse picker
Laser intensity control/stabilisation
Optical dipole traps / optical lattices
Polarisation modulation

QUBIG offers Pockels Cells with KD*P, RTP, LT, GaAs and BBO crystals for Q-switching of laser cavities, cavity dumping of mode-locked lasers, injection and extraction of laser pulses into and from regenerative amplifiers and beam chopping applications.

In addition to that we provide in combination with our High-Voltage pulse generates and linear amplifiers systems that meet the high requirements for new quantum technology applications including ultra-cold atoms and single photon multiplexing.