Fiber output, PM options, seed formats
MDL-III-637-SM637 nm red fiber laser
637 nmThe MDL-III-637-SM is a 637 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
MDL-III-637-SM
18 specification rows
| Output / average power | SM Fiber output laser |
|---|---|
| Beam / notes | Series: MDL-III-637-SM |
| Operating mode | CW |
| Power stability (rms, 4 hours ± 3°C) | <2%, <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) | 637±5 |
| Transverse mode | Near TEM00 |
| M² | <1.5 |
| Beam diameter at the aperture (1/e2, mm) | ~3.0 |
| 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 |
What do you need?
Tell us the output power, linewidth and fibre output you need, and we'll reply with the matching configuration and lead time.
Model selection
Nearby series comparison
Compare MDL-III-637-SM with the closest available models in the Fiber Lasers family.
| Selection parameter | MDL-III-637-SM (current) | FC-W-637 | FC-W-638/525/450/940/980C |
|---|---|---|---|
| Wavelength | 637 nm | 637 nm | 638 nm |
| Optical power / pulse energy | SM Fiber output laser | 3~40 W | 71 W |
| Operating mode / pulse width | CW | CW | CW |
| Beam quality | <1.5 | — | — |
Related fiber lasers
Compare the MDL-III-637-SM with nearby fiber lasers across the wavelength range.
