Power stability, linewidth, beam quality
MLL-III-397L397 nm UV CW laser
397 nmThe MLL-III-397L is a 397 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-397L
17 specification rows
| Output / average power | 1~100 mW |
|---|---|
| Beam / notes | Laser |
| Operating mode | CW |
| Power stability (rms, 4 hours ± 3°C) | <2%, <1%, <0.5% |
| Noise of amplitude (rms, 20Hz-20MHz) | <1%, <0.5% |
| M2 | <1.5 / <1.2 |
| 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) | 397±5 |
| Transverse mode | Near TEM00 |
| Polarization ratio | >50:1, (>100:1 optional) Horizontal±5 degree (Vertical optional) |
| 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
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| Selection parameter | MLL-III-397L (current) | MLL-III-397 | MDL-III-397L |
|---|---|---|---|
| Wavelength | 397 nm | 397 nm | 397 nm |
| Optical power / pulse energy | 1~100 mW | 1~100 mW | 1~100 mW |
| Operating mode / pulse width | CW | CW | CW |
| Beam quality | Near TEM00 | Multimode | Near TEM00 |
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