---
title: Catalog RFQ Laser Achromats
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# Laser Achromats

Our catalog Laser Achromats are designed primarily for a diode laser with an 830nm wavelength. They perform well through the near-infrared spectrum. They have been corrected for spherical aberration, coma and astigmatism. They are intended to be used for diode beam manipulation.

| Diameter | Dia. Tolerance | CT Tolerance | Centering | Irregularity | Surface Quality | Bevel |
| --- | --- | --- | --- | --- | --- | --- |
| **5.00-25.00** | +0.00 / -0.10 | ±0.2 | < 3 minutes | 0.25 Waves | 40-20 | 0.25 x 45° |
| **25.01 - 50.00** | +0.00 / -0.10 | ±0.2 | < 3 minutes | 0.25 Waves | 40-20 | 0.50 x 45° |
| **Dimensions** | MM |  |  |  |  |  |
| **Clear Aperture** | CA >= 90% of Diameter |  |  |  |  |  |
| **Coating** | V-Coat @830 nm (*See [Coating Chart](https://www.rossoptical.com/capabilities/optical-coatings) for Available Options*) |  |  |  |  |  |
| **Design Wavelength** | 830 nm |  |  |  |  |  |
| **Focal Length Tolerance** | ±2% |  |  |  |  |  |
| **Edge Thickness** | Reference |  |  |  |  |  |
| ** All dimensions are in mm* |  |  |  |  |  |  |