Amplitude/Phaser Electro-Optical Modulator - No Resonance

SKU: EOMN

The FEOM Series Free-space Electro-Optic Modulator, supplied with a matched driver, modifies the polarization or amplitude of free-space laser beams across a wide wavelength range. It uses a compensated electro-optic crystal pair with specialized material compositions for high-power handling and short-wavelength stability. To lower the driving voltage, the modulator is offered in two configurations: single-pair and dual-pair crystal lengths, as shown in the accompanying graph. The device operates with alternating voltage to prevent internal charge buildup, while the matched driver supports modulation from DC to MHz, with depth limited by the driver’s output power. Optional accessories include polarization cubes for high-extinction-ratio amplitude modulation and isolators to block back reflections. A polarized input beam is required for amplitude modulation.