New Focus standard phase modulators are available in a wide variety of wavelength ranges, operating frequencies, and in broadband or resonant models, ensuring we have an ideal solution for your application needs including atomic physics, laser-frequency stabilization, and high-resolution spectroscopy.
We provide standard phase modulators with operating frequencies from DC up to 9.2 GHz.
We offer both broadband modulators that can be used at a wide range of frequencies and resonant modulators that operate at a single frequency with much lower drive voltage requirements. The resonant modulators feature a resonant tank circuit to maximize power transfer from driver to crystal, thereby maximizing the voltage across the crystal, lowering required drive voltages by a factor of nearly 10. Each resonant phase modulator is built to the your exact specified frequency.
The standard phase modulators are available in versions covering anywhere from 360 nm to 1600 nm.
The key to obtaining this pure phase modulation is good optical alignment of the beam to the crystals propagation axis and accurate orientation of the lasers electric ﬁeld with the crystals electro-optic axis. New Focus makes proper alignment easy, simply pass the beam through the mechanical apertures.
1) Contact Newport when ordering Resonant Modulators to specify Resonant Frequency2) V π is proportional to wavelength3) Typical value for a 0.5 mm diameter beam4) The maximum optical intensity varies with wavelength