Features of the Etalon Filters
- Wavelength Locking: When utilized in transmission mode, etalons feature a series of transmittance peaks with periodic frequency spacing, making them ideal for telecom wavelength locking.
- Key Characteristics: Fully defined by their Free Spectral Range (FSR) — the precise frequency spacing between peaks — and their Finesse, which governs the exact shape and sharpness of the transmission peaks.
- Robust Structure: Typically consist of a single, highly stable spacer layer sandwiched between two high-performance reflector stacks on either side.
Specifications with ETALON Filter

*Customization Option: FSR, Finesse, and Clear Aperture can be tailored upon request.
