Amplitude/Phaser Electro-Optical Pockels Cell Modulator — No Resonance

Features:
  • Birefringence Compensated with Crystal Pair
  • High Performance
  • Compact Package
  • Easy integration
  • Customize Available
  • Low cost

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SKU: EOMN

The FEOM Series Free-Space Electro-Optic Modulators employ a birefringence-compensated electro-optic crystal pair to provide stable, high-performance phase and amplitude modulation. The design utilizes lithium tantalate (LiTaO₃) crystals, offering excellent high-optical-power handling, improved short-wavelength stability, and reduced piezoelectric ringing compared with conventional lithium niobate (LiNbO₃) modulators. Single-pair and dual-pair crystal configurations are available to accommodate different drive-voltage and modulation-depth requirements. When combined with a matched driver, the modulators support operation from DC to the MHz range. An optional 200 V, 1 MHz driver is available to achieve full modulation depth at wavelengths up to 1550 nm, depending on the crystal configuration. Optional accessories include polarizing beam-splitter cubes for high-extinction-ratio amplitude modulation, optical isolators to suppress back-reflections, and photodetectors for feedback control. A linearly polarized input beam is required for amplitude modulation. Optical power handling depends on the clear aperture and electro-optic material, while the required drive voltage is determined by the crystal geometry, interaction length, and operating wavelength. Compatible drivers are available on our website. For applications requiring substantially higher modulation speeds, acousto-optic modulators (AOMs) may also be considered.

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