SLM, narrow linewidth, coherence
MSL-III-660L660 nm red narrow-linewidth single-frequency laser
660 nmThe MSL-III-660L is a 660 nm continuous-wave direct diode laser. Electrical current creates optical gain in a semiconductor junction, and the diode generates the laser light directly. Optical feedback selects the oscillating modes, while drive current and junction temperature affect output power and wavelength. Single-longitudinal-mode operation selects one resonator frequency. Linewidth describes the spread around that frequency, while frequency drift describes how its center moves over time. This distinction matters when matching the source to a narrow resonance or an interferometer.
Specifications
MSL-III-660L
18 specification rows
| Output / average power | 1~40 mW |
|---|---|
| Spectral linewidth | <50 MHz optional |
| M² | <1.5 |
| Operating mode | CW |
| Power stability (rms, 4 hours ± 3°C) | <2%, <1%, <0.5% |
| Beam divergence, full angle (mrad) | <1.2 |
| Warm-up time (minutes) | <5 |
| Operating temperature (℃) | 10-35 |
| Power supply (100-240VAC) | PSU-III-FDA |
| Expected lifetime (hours) | >10000 |
| Central wavelength (nm) | 660±0.5 |
| Transverse mode | Near TEM00 |
| Longitudinal mode | Single |
| Coherent length (m) | >2 |
| Noise of amplitude (rms, 20Hz-20MHz) | <1%, <0.5% |
| Beam diameter at the aperture (1/e2, mm) | <3 |
| Polarization ratio | >50:1, (>100:1 optional) Horizontal±5 degree (Vertical optional) |
| Beam height from base plate (mm) | 24.8 |
What do you need?
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Model selection
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