Power stability, linewidth, beam quality
MSL-DU-639-W639 nm red CW laser
639 nmMSL-DU-639-W is a 639 nm CW laser. Used for optical frequency standards, gravitational wave detection, tests of fundamental physics, atomic clocks. Water cooled, f requency stabilized. Key specifications: output / average power 1~750 mW, operating mode CW, power stability (rms, 4 hours, ±3°c) <3%, <2%, <1%. View specifications, datasheet and enquiry options from Precisometer.
Specifications
MSL-DU-639-W
24 specification rows
| Output / average power | 1~750 mW |
|---|---|
| Beam / notes | Water cooled, f requency stabilized |
| Operating mode | CW |
| Power stability (rms, 4 hours, ±3°C) | <3%, <2%, <1% |
| Transverse mode | TEM00 |
| Longitudinal mode | Single |
| Spectral line width (MHz) | <1MHz |
| Noise of amplitude (rms, 20Hz-20MHz) | <1%, <0.5% |
| Beam divergence (mrad) | <1.5 |
| Polarization ratio | >100:1, Horizontal (Vertical optional) |
| Pointing stability over temperature (urad/°C) | <8 |
| Warm-up time (minutes) | <30 |
| Cooled method (water cooled) | WCH-580 |
| Operating temperature (°C) | 10-35 |
| Power supply (100-240VAC) | PSU-SR |
| Expected lifetime (hours) | >10000 |
| Wavelength (nm) | 639±1 |
| Output power (mW) | 1-750 |
| Coherent length (m) | >40 |
| Frequency shift (MHz) (over ±2°C and 8hrs) (optional) | <±100 MHz (±0.15pm) |
| M² | <1.2 |
| Beam diameter at the aperture (1/e2, mm) | <1.5 |
| Pointing stability (urad) (over 2 hours after warm-up and ±3°C) | <50 |
| Beam height from base plate (mm) | 47.4 |
Applications
Uses named on this model’s datasheet.
- Optical frequency standards
- Gravitational wave detection
- Tests of fundamental physics
- Atomic clocks
- High -resolution spectrum
- Lidar
- Precision measurement
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