Description
Specifications Table
Product Material – Fused Silica
Product Size – 25.4mm
Grade – Research Grade
Application – Wavelength Selection, Laser Tuning, Optical Filtering
Product Overview
The Fabry-Perot Etalon is an essential optical component designed for high-precision wavelength selection and laser stabilization applications. Constructed from premium fused silica, this etalon ensures exceptional thermal stability and minimal optical distortion, making it indispensable in demanding research environments. The high-reflectivity dielectric coatings on both surfaces create a resonant cavity that allows only specific wavelengths to transmit, enabling ultra-narrow bandwidth filtering. With a 25.4mm aperture, it accommodates most standard optical setups while maintaining superior parallelism for consistent interference patterns. The research-grade quality guarantees low scattering losses and high finesse, critical for applications requiring spectral purity. Whether used in laser tuning systems or as a reference cavity in metrology, this etalon delivers unmatched performance in wavelength discrimination. The robust construction ensures long-term reliability even under continuous laser exposure, while the precise manufacturing tolerances maintain consistent free spectral range across the entire aperture. This makes it equally suitable for both fundamental physics experiments and applied research in photonics and quantum optics.
FAQs
1. What determines the finesse of this Fabry-Perot Etalon?
The finesse is primarily determined by the reflectivity of the dielectric coatings and the parallelism of the optical surfaces. Higher reflectivity coatings and superior surface flatness contribute to higher finesse values.
2. Can this etalon be used with high-power lasers?
Yes, the fused silica construction and high-quality coatings make it suitable for use with continuous-wave lasers, though the exact power handling depends on the beam diameter and cooling conditions.
3. What’s the typical free spectral range for this 25.4mm etalon?
The free spectral range is approximately 2 GHz for this size, though it can vary slightly depending on the exact optical path length and angle of incidence.
4. How should I clean the optical surfaces without damaging the coatings?
Use only optical-grade lens cleaning solution and lint-free wipes. Avoid abrasive materials and always blow off dust particles with clean, dry air before wiping.
5. What alternatives exist for applications requiring wider bandwidth?
For broader spectral selection, consider using a lower-finesse etalon or a tunable filter system, though these may sacrifice some wavelength resolution.
