interferometer lenses

Interferometer Lens

Features of the Module

  • High precision optical performance.
  • Designed for interference pattern analysis.
  • Optimized for minimal aberration and high transmission.
  • Available in various configurations for different interferometer types.
  • Durable construction with high-quality coatings.

Description of the Module The Interferometer Lens is a specialized optical module engineered to be a critical component in interferometric systems. Interferometers are instruments that measure the wavefront or optical path differences by superimposing two or more beams of light. The role of the interferometer lens in this system is to accurately collimate or focus the beams of light, ensuring that the interference patterns produced are sharp and precise. This is crucial for applications where minute differences in optical paths need to be detected and analyzed.

These lenses are meticulously designed to meet the stringent requirements of interferometry, where even the slightest aberration can lead to significant measurement errors. The lenses are constructed with high-quality optical materials and are available in various configurations to suit different types of interferometers, including Michelson, Mach-Zehnder, and Fabry-Pérot setups. Each lens is optimized for high transmission and minimal reflection, ensuring that the maximum amount of light passes through the system with minimal loss.

General Specification, Manufacturing Tolerances, and Limitations

SpecificationDetail
MaterialHigh-grade optical glass, fused silica
Wavelength Range400 nm to 1600 nm
Surface Quality20-10 Scratch-Dig
Surface Accuracyλ/20 to λ/40
CoatingAnti-reflective coatings, custom coatings available
DiameterCustomizable, typically 25mm to 100mm
Centering Accuracy<1 arcmin
Thickness Tolerance± 0.005 mm
Transmission> 99% at specified wavelength

What is the Module Composed of?

  • High-grade optical glass or fused silica.
  • Anti-reflective and other specialized coatings.
  • Precision-engineered lens elements.

Classification of the Module

  • Collimating Lenses: Used to make light rays parallel before they enter the interferometer.
  • Focusing Lenses: Used to bring light rays to a sharp focus to create interference patterns.
  • Beam Expanding Lenses: Used to increase the diameter of the laser beam in an interferometer setup.

What’s the Key Components?

  • Lens Elements: Precisely polished and coated to minimize aberrations and maximize transmission.
  • Housing: Machined to tight tolerances to ensure alignment and stability.
  • Coatings: Multi-layer anti-reflective coatings designed to operate at specific wavelengths.

What’s the Critical Specs?

  • Surface accuracy is crucial, typically λ/20 or better, to ensure precise interference pattern formation.
  • Transmission efficiency must be high (>99%) to reduce losses in the system.
  • Surface quality (20-10 Scratch-Dig) to minimize scattering and maintain beam quality.

How to Evaluate the Performance? Performance evaluation of an interferometer lens typically involves interferometric testing to measure surface accuracy and transmitted wavefront distortion. Additionally, transmission efficiency is tested across the specified wavelength range to ensure high performance. Coating durability and environmental resistance may also be assessed based on the application requirements.

How to Select the Module Selection of an interferometer lens module should be based on the specific type of interferometer being used, the required wavelength range, and the precision required for the application. Considerations should also include the lens size, coating requirements, and environmental conditions the lens will be exposed to.

What’s the Application?

  • Precision optical metrology
  • Surface profile measurements
  • Quality control in lens manufacturing
  • Research and development in physics and optics
  • Interferometric testing in aerospace and semiconductor industries

Why Choose Bote Optics Bote Optics offers a range of high-precision interferometer lenses that are designed and manufactured to the highest standards. With advanced manufacturing processes, stringent quality control, and a commitment to innovation, Bote Optics ensures that each lens delivers exceptional performance in interferometric applications. Our lenses are custom-engineered to meet the specific needs of your project, offering unparalleled accuracy, durability, and optical clarity. Trust Bote Optics for your interferometer lens requirements to achieve reliable and precise results.