Neoark’s lasers have been chosen for their remarkable long term stability, making them ideal for MWIR (Medium Wave Infrared) interferometric testing of anything from single lens elements or mirrors right up to complete focal and afocal lens objectives.
The lasers are available with two output levels >4mW and >8mW, making their laser safety classification 3B.
| Specification | 15R3 | 30R3 |
| Wavelength (μm) | 3.39 | 3.39 |
| Typical output (mW) | >4.0 | >8.0 |
| Output stability (25X) %/h | ±5.0 | ±5.0 |
| Beam diameter mmφ (1/e2) | 2.6 | 3.0 |
| Beam divergence (mrad) | 1.7 | 1.6 |
| Linear polarisation (extinction ratio) | 1000:1 | 1000:1 |
| Cavity length (mm) | 683 | 933 |
| Transverse mode | TEM00 | TEM00 |
| Longitudinal interval (MHz) | 219 | 160 |
| Number of longitudinal modes (reference data) | 1 – 2 | 1 – 2 |
| Gain width (reference data) | 280 | 280 |
| Safety classification | 3B | 3B |
| Dimension/weight (mm/kg) HeadPower supply | 118x118x730/6.3120x270x300/5.7 | 118x118x980/6.6120x270x300/5.7 |
| Electrical requirement/ Power consumption | 90V to 264VAC/100VA 50/60Hz | 90V to 264VAC/130VA 50/60Hz |
Click here for SIOS Stabilized He-Ne Lasers