CVI PR1‑1047‑90‑1025 Partial Reflecting Laser Mirror

Optical manufacturers like CVI Laser Optics use structured part numbers where each segment carries specific meaning:

• PR1 – Partial Reflector series: this designates a partial reflecting laser mirror (also called an output coupler or beam sampler), which reflects most of the light but transmits the rest.

• 1047 – Center wavelength (in nanometers): optimized around 1047 nm, a near-infrared laser wavelength.

• 98 – Reflectivity percentage (~98 %): this indicates the mirror will reflect about 98 % of the incident light at the design wavelength (with ~2 % transmitted).

• 1025 – Size code: corresponds to an optical optic with ≈ 25.4 mm diameter × ~6.35 mm thickness, which is a standard 1″ optic size.

This type of part is an optical mirror specifically designed for laser applications:

• It’s a partial reflecting mirror used to sample, split, or direct laser beams in a system — useful in laser cavities, diagnostics, or beam routing.

• Designed for a specific wavelength (~1047 nm), meaning the dielectric coating is tailored to give the specified reflectivity at that wavelength.

• Standard 1″ diameter size makes it compatible with common optical mounts and laser setups.