Photoelastic Modulators (PEMs) by CASTECH
CASTECH's Photoelastic Modulators (PEMs) are dynamic optical waveguides designed to alter the polarization state of transmitted light by introducing dynamic phase retardation. These devices utilize isotropic materials that vibrate at their resonant frequencies, changing the refractive index periodically. This photoelastic effect modulates the phase retardation, offering high precision and versatility.

Key Features:

• Large Acceptance Angle & Aperture: Accommodates a wide range of optical beams, enhancing performance across various applications.
• Wide Wavelength Range: Suitable for ultraviolet, visible, and infrared light, enabling diverse use cases.
• High Modulation Frequency: Ideal for precise control in high-speed applications.
• High Precision: Ensures accurate phase modulation for critical measurements.

Two Types for Different Needs:

• One-Dimensional PEMs: Designed for applications in the ultraviolet, visible, and near-infrared bands, with single-axis vibration.
• Two-Dimensional PEMs: Offering dual-axis vibration, enabling broader phase modulation, particularly effective in visible and infrared bands.

Applications:

• Polarization Measurement: Essential for accurate polarization state analysis in scientific experiments.
• Quantum Sensing: Key component in quantum sensing devices for high-resolution measurements.
• Spectroscopy: Improves the precision and versatility of spectroscopic systems.
• Astronomical Observation: Aids in capturing precise polarization data for astronomical studies.
• Magnetometry: Provides the modulation needed for sensitive magnetometry measurements.

CASTECH’s PEMs are ideal for professionals seeking advanced optical modulation in research and industrial settings, ensuring reliable, high-quality results across a variety of fields.