SLM, narrow linewidth, coherence
MLL-III-937L937 nm near-infrared single-frequency laser
937 nmThe MLL-III-937L is a 937 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. The TTL and analog modulation options control different things: TTL gates the beam on and off, while analog control varies its intensity. Modulation bandwidth sets how quickly the source can follow a changing command.
Specifications
MLL-III-937L
18 specification rows
| Output / average power | 1~200 mW |
|---|---|
| Beam / notes | Narrow Linewidth Infrared Laser |
| Operating mode | CW |
| Power stability (rms, 4 hours ± 3°C) | <2%, <1%, <0.5% |
| Transverse mode | Near TEM00 |
| Noise of amplitude (rms, 20Hz-20MHz) | <1%, <0.5% |
| M2 | <1.5 |
| Beam divergence, full angle (mrad) | <1.0 |
| Warm-up time (minutes) | <5 |
| Cooled method | Conduction |
| Operating temperature (°C) | 10-35 |
| Power supply (100-240VAC) | PSU-III-FDA/PSU-III-LED/PSU-A-D/PSU-III-OEM |
| Expected lifetime (hours) | >10000 |
| Central wavelength (nm) | 937±3 |
| M² | <1.5 |
| Beam diameter at the aperture (1/e2, mm) | ~3.5 |
| Beam height from base plate (mm) | 24.8 |
| Modulation option | DC-1kHz, 1kHz-10kHz, 10kHz-30kHz, 30kHz-100kHz optional; TTL and Analog optional |
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Model selection
Nearby series comparison
Compare MLL-III-937L with the closest available models in the Single-Frequency Lasers family.
| Selection parameter | MLL-III-937L (current) | TUN-918~941 | MLL-III-937-SM |
|---|---|---|---|
| Wavelength | 937 nm | 937 nm | 937 nm |
| Optical power / pulse energy | 1~200 mW | 1~40 mW | 1-50 mW |
| Operating mode / pulse width | CW | CW | — |
| Beam quality | <1.5 | Near TEM00 | — |
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