Faraday Rotators

Key Features of Faraday Rotators:

  • Non-reciprocal Polarization Rotation: Enables a 45° rotation of laser polarization, ensuring efficient rejection of backward light propagation.
  • Wide Wavelength Range: Operational from 355 nm to 4500 nm, adaptable to multiple laser systems.
  • High-Power Handling: Customizable Faraday rotators capable of handling up to 500 W average power for high-performance applications.
  • High Extinction Ratio: Delivers >30 dB extinction ratio for superior performance in demanding laser systems.
  • Advanced Quality Assurance: Low absorption coefficients and high Verdet constant ensure reliability and minimal degradation.

General Description of the Device:

Faraday Rotators by POC provide precise non-reciprocal rotation of light polarization, ensuring efficient rejection of backward-propagating light. When light transmits through the rotator, its polarization rotates by 45° in the forward direction and an additional 45° upon reverse propagation. This unique behavior, driven by the magnetic field alignment, ensures superior isolation of laser beams.

Designed with cutting-edge magneto-optic crystals featuring high Verdet constants and low absorption coefficients, these devices deliver outstanding reliability and long-term performance. POC employs a proprietary high Laser-Induced Damage Threshold (LIDT) process technology, making these rotators suitable for high-power applications up to 500 W. They operate efficiently across wavelengths from 355 nm to 4500 nm, catering to diverse industrial and scientific requirements.

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Applications and Examples:

  • Laser Sensing Systems: Ensures accurate and precise polarization control in advanced optical sensors.
  • Ultrafast Laser Systems: Compatible with high-power ultrafast lasers for material processing and research.
  • Optical Coherence Tomography (OCT): Provides stable polarization control for medical imaging systems.
  • Laser Detection Systems: Enhances performance in spectroscopic and diagnostic applications.

Standard Products and Model Numbers:

Faraday Rotators Model Number Structure: HPRO-t-p-a-λ-w-h

  • t: Type (e.g., FS for common use)
  • p: Power (1–500 W)
  • a: Aperture (2–20 mm)
  • λ: Wavelength (355–4500 nm)
  • w: Waveplate (Contained/Not Contained)
  • h: Housing (e.g., A01, A15)

Typical Specifications:

Aperture (mm) Wavelength (nm) Extinction Ratio (dB) Rotation Angle (°) Power Handling (W) Transmission (%)
2–15 355–1080 >30 45±0.5 100 >98
2–10 1310–4500 >30 45±0.5 100 >98
15–20 600–1080 >30 45±1 500 >98

*Operating temperature: 10–30°C. Power values represent maximum average power.

Housing Dimensions (mm):

  • A01: Aperture ≤ 5 mm
    • Dimensions: 54.5 × 38 × 60 mm
  • A15: Aperture ≤ 12 mm (Water-cooled)
    • Dimensions: 60 × 38 × 50 mm
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POC Strength and Capabilities:

Photonics of Crystals (POC) is a leader in delivering cutting-edge Faraday Rotators designed for precision and reliability. With state-of-the-art crystal growth technology, POC ensures consistent quality with high Verdet constants and minimal absorption losses. Our proprietary manufacturing process achieves high Laser-Induced Damage Thresholds (LIDT), catering to high-power applications.

POC offers comprehensive customization options, including tailored aperture sizes, wavelength ranges, and power-handling capacities. Our meticulous quality assurance guarantees optimal performance, making POC’s Faraday Rotators an ideal solution for diverse industrial and scientific applications.