Electro-optic Modulators
Our Free-space Electro-optic modulators (EOMs) are efficient, convenient and easy to use tools to modify the phase, frequency, polarization or amplitude of a free-space laser. The modulation spectrum ranges from DC-coupled phase shifters to high-Q, resonant enhanced EOMs in the kHz, MHz and GHz range.
Large apertures and a large range of selected crystal materials (AR-coated or Brewster-cut) permit the use of high power lasers at UV to IR wavelengths with high optical transmission and low wavefront distortion.
![](files/content/home/products/electro-optic%20modulators/phase%20modulators/PM.bulk/free-space-electro-optic-modulators_titel.jpg)
![](files/qubig/img/products/free-space-electro-optic-modulators/fsEOM_PM_1200x600.png)
PHASE MODULATORS
TYPICAL APPLICATIONS:
- 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
![](files/qubig/img/products/free-space-electro-optic-modulators/TWP_labled_1200x600.png)
BROADBAND PHASE MODULATORS
TYPICAL APPLICATIONS:
- 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
![](files/qubig/img/products/free-space-electro-optic-modulators/fsEOM_PS_1200x600.png)
PHASE SHIFTERS
TYPICAL APPLICATIONS:
- Interferometry
- Q-Switch
- Laser frequency stabilisation (intra cavity)
- Intensity control (Mach-Zehnder)
- Broadband phase modulation
![](files/qubig/img/products/free-space-electro-optic-modulators/fsEOM_AM_1200x600.png)
AMPLITUDE MODULATORS
TYPICAL APPLICATIONS:
- Mode locking
- Lock-In detection
- Light chopper
- Polarisation modulation
- Quantum computation / simulation
- Single-photon spatial distribution
![](files/qubig/img/products/free-space-electro-optic-modulators/fsEOM_PC_1200x600.png)
POCKELS CELLS
TYPICAL APPLICATIONS:
- Q-Switch
- Beam chopper
- Pulse picker
- Laser intensity control/stabilisation
- Optical dipole traps / optical lattices
- Polarisation modulation
Laser Beam Conditioning - overview
![](files/qubig/img/products/free-space-electro-optic-modulators/ApplicationsOverview.png)