Power stability, linewidth, beam quality
MLL-III-845L845 nm near-infrared CW laser
845 nmThe MLL-III-845L is a 845 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. Tuning changes the selected output wavelength so spectral features can be scanned with the same source. The tuning band specifies which lines can be reached; linewidth describes the width of the selected line.
Specifications
MLL-III-845L
19 specification rows
| Output / average power | 1~30 mW |
|---|---|
| Beam / notes | Tunable wavelength Low Noise 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) | 845±10 |
| M² | <1.5 |
| Beam diameter at the aperture (1/e2, mm) | ~4.0 |
| Polarization ratio | >10:1, (>50:1 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 |
What do you need?
Tell us the output power, beam quality and beam delivery you need, and we'll reply with the matching configuration and lead time.
Model selection
Nearby series comparison
Compare MLL-III-845L with the closest available models in the CW Lasers family.
| Selection parameter | MLL-III-845L (current) | FC-845 | MDL-845(FC) |
|---|---|---|---|
| Wavelength | 845 nm | 845 nm | 845 nm |
| Optical power / pulse energy | 1~30 mW | 1~25 mW | 1~25 mW |
| Operating mode / pulse width | CW | — | — |
| Beam quality | <1.5 | — | — |
Related cw lasers
Compare the MLL-III-845L with nearby cw lasers across the wavelength range.
