CVI Melles Griot W2‑PW‑2025‑C‑1050‑1600‑45UNP Optical Laser Window
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W2 – Series/design code for a specific optical window or plate style.
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PW – Likely indicates Plano Window (flat optical window).
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2025 – Physical size code (typically 2.0″ diameter × 0.25″ thick ≈ 50.8 mm × 6.35 mm).
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C – Indicates the coating type or substrate quality/grade (often fused silica/window quality).
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1050‑1600 – Wavelength range of the anti‑reflection (AR) coating in nanometers — optimized for the near‑infrared (NIR) from ~1050 nm to 1600 nm.
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45UNP – Anti‑reflection coating at 45° for unpolarized light (i.e., low reflection for both s‑ and p‑polarization at 45° incidence).



