High Power Faraday Rotator and Isolator by DK Photonics

Name: High Power Faraday Rotator and Isolator by DK Photonics
Brand: DK Photonics
Availability: InStock

Description

Faraday rotators play a crucial role in changing the polarization state of light as it travels through the device. The output polarization state is adjusted by 45 degrees relative to the input polarization. This characteristic is fundamental in various optical applications.

When combined with a mirror, the reflected light experiences an additional 45-degree rotation, resulting in a total 90-degree rotation. Importantly, the polarization handedness is reversed by the mirror, leading to a reflected polarization that is orthogonal to the original. This feature is particularly valuable in interferometers, where it helps cancel out any polarization changes through the fiber on the return journey.

The 1064nm High Power Free Space Isolator is a notable member of the diverse High Power Isolator series from DK Photonics. This series includes in-line types, beam expanded isolators, fiber in and free space out isolators, among others. The 1064nm High Power Free Space Isolator distinguishes itself as a type of isolator that allows free space in and out.

These isolators are characterized by low insertion loss, high isolation, high power handling, high return loss, and excellent environmental stability and reliability. Such features make them ideal candidates for fiber laser and instrumentation applications, striking a balance between high performance and durability in optical systems.

Customization and Design Adaptability:

Wavelength Adaptability: The product is adaptable to various wavelengths as per customer requirements.

Clear Aperture Customization: Options for larger clear apertures are available based on customer needs.

Design Improvements: Ongoing design enhancements ensure the product remains cutting-edge. Please contact DK Photonics for confirmation on the latest specifications.

Specifications

Type Of The Device:	Isolator
Operating Wavelength:	1064 nm
Min Isolation:	30 dB
Clear Aperture:	2.8 mm
Trans @25℃:	≥98 %
Extinction Ratio @25℃:	≥30 dB
Rotation:	45±2 degrees
Pulse Damage Threshold @10ns:	5 J/cm²
Operation Temperature:	0~+50 ℃

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Features

High Power Handling: Engineered for robust operation, supports pulse damage thresholds up to 5 J/cm² (10ns), making it ideal for high-power laser applications.
Low Insertion Loss: Ensures minimal signal loss with transmission rates of ≥92% for isolators and ≥98% for rotators at 25°C, maximizing system efficiency.
Superior Isolation: Provides high isolation of ≥30 dB, effectively preventing back reflections and protecting sensitive laser sources.
Precise Polarization Rotation: Delivers a consistent 45° ±2° polarization rotation, essential for interferometry and polarization-sensitive applications.
Excellent Environmental Stability: Designed for reliable performance across a wide operating temperature range (0°C to +50°C), ensuring stability in demanding environments.
Multiple Aperture Sizes: Available in clear apertures of 2.8mm, 5.0mm, 6.0mm, and 6.8mm to accommodate various beam diameters and system requirements.
Versatile Wavelength Range: Optimized for 1020-1080nm, including the popular 1064nm wavelength, with custom wavelengths available upon request.
Flexible Configurations: Offered as free space isolators, in-line types, beam expanded isolators, and fiber-in/free-space-out options for diverse integration needs.
High Reliability & Low Cost: Manufactured with high-quality materials and advanced processes for long-term reliability and cost-effective performance.
Customizable Solutions: Larger clear apertures and other custom specifications available to meet unique application requirements.
Ideal for Advanced Applications: Perfect for use in multi-level laser amplifiers, optical parametric oscillators, ring lasers, erbium-doped fiber amplifiers, seed injecting lasers, and optical modulators.
Compact and Adaptable Design: Compact package dimensions suitable for integration into a variety of optical systems (contact DK Photonics for latest package details).
Outstanding Return Loss: High return loss ensures minimal back reflection, further safeguarding laser sources and improving system performance.

Applications

Fiber Laser Systems: Essential for protecting laser sources from back reflections, enhancing stability and performance in high-power fiber laser setups.
Laser Amplifiers: Used in multi-stage and high-power laser amplifiers to prevent feedback and ensure unidirectional light propagation.
Optical Parametric Oscillators (OPOs): Maintains stable operation by isolating sensitive components from unwanted reflected signals.
Ring Lasers: Enables unidirectional lasing and suppresses mode competition by blocking counter-propagating light.
Erbium-Doped Fiber Amplifiers (EDFAs): Protects the amplifier from destabilizing back reflections, improving signal integrity in telecom and research applications.
Seed Injecting Lasers: Ensures stable seeding by isolating the seed laser from reflected light, crucial for high-precision and high-power laser systems.
Optical Modulators: Prevents back reflections from affecting modulator performance, ensuring clean signal modulation in advanced photonic circuits.
Laser Interferometry: Cancels polarization changes in interferometric setups, improving measurement accuracy in scientific and industrial metrology.
Quantum Optics Experiments: Maintains polarization purity and prevents feedback in sensitive quantum communication and computation setups.
Nonlinear Optics: Protects nonlinear crystals and devices from damaging back reflections, enabling efficient frequency conversion and harmonic generation.
Medical and Industrial Laser Systems: Enhances safety and reliability in high-power laser applications such as surgery, material processing, and micromachining.
Laser Spectroscopy: Ensures stable and accurate spectral measurements by minimizing feedback and polarization noise.
Optical Sensing and Measurement: Improves signal-to-noise ratio and measurement reliability in advanced optical sensors and instrumentation.
Free Space Optical Communication: Maintains signal integrity and prevents interference in free-space laser communication links.
Research and Development: Widely used in laboratories for experimental setups requiring high isolation, polarization control, and protection from back reflections.

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Frequently Asked Questions

What is a High Power Faraday Rotator and Isolator and how does it work?

A High Power Faraday Rotator and Isolator is an optical device that manipulates the polarization state of light. The Faraday rotator rotates the polarization of incoming light by 45 degrees, and when combined with a mirror, the reflected light undergoes another 45-degree rotation, resulting in a total 90-degree shift and orthogonal polarization. The isolator uses this effect to allow light to pass in one direction while blocking it in the reverse direction, protecting sensitive laser components from back reflections and feedback.

What are the main applications of DK Photonics High Power Faraday Rotators and Isolators?

DK Photonics High Power Faraday Rotators and Isolators are ideal for use in multi-level laser amplifiers, optical parametric oscillators, ring lasers, erbium-doped fiber amplifiers, seed injecting lasers, and optical modulators. They are commonly used in fiber laser systems and precision instrumentation where high isolation and power handling are required.

What wavelength range do DK Photonics High Power Faraday Rotators and Isolators support?

The standard DK Photonics High Power Faraday Rotators and Isolators are designed for operation in the 1020-1080nm wavelength range, with 1064nm being a common specification. Custom wavelengths are also available upon request.

What are the key performance specifications of these isolators and rotators?

Key specifications include clear apertures from 2.8mm to 6.8mm, transmission of ≥92% for isolators and ≥98% for rotators at 25°C, isolation or extinction ratio of ≥30dB, a rotation angle of 45° ±2°, pulse damage threshold of 5J/cm² at 10ns, and an operating temperature range of 0 to +50°C.

How do DK Photonics High Power Isolators protect laser systems?

These isolators protect laser systems by allowing light to pass in the forward direction while blocking or attenuating reflected light that could travel back into the laser cavity. This prevents destabilization, feedback, and potential damage to sensitive laser components, ensuring stable and reliable operation.

Can DK Photonics High Power Faraday Rotators and Isolators be customized?

Yes, DK Photonics offers customization options such as different wavelengths and larger clear apertures to meet specific application requirements. Customers are encouraged to contact DK Photonics directly for custom solutions.

What makes DK Photonics High Power Faraday Rotators and Isolators suitable for high-power laser applications?

These devices are engineered for high power handling with low insertion loss, high isolation, excellent temperature stability, and high reliability. Their robust design and high pulse damage threshold (5J/cm² at 10ns) make them ideal for demanding high-power laser and amplifier systems.

Got more questions? Use the RFQ form to ask the supplier directly.