Fiber output, PM options, seed formats
TEM-F-685685 nm red fiber laser
685 nmThe TEM-F-685 is a 685 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
TEM-F-685
17 specification rows
| Output / average power | 1~20 mW |
|---|---|
| Beam / notes | Fiber output laser High Stability Red Laser |
| Operating mode | CW |
| Power stability (rms, 4 hours ± 3°C) | <2%, <1%, <0.5% |
| Transverse mode | TEM00 |
| M2 | <1.1 |
| Beam divergence, full angle (mrad) | <1.5 |
| Warm-up time (minutes) | <5 |
| Operating temperature (°C) | 25±3 |
| Power supply (100-240VAC) | PSU-III-FDA/PSU-III-LED/PSU-A-D |
| Expected lifetime (hours) | >10000 |
| Central wavelength (nm) | 685±5 |
| Ellipticity | >0.95 |
| M² | <1.1 |
| Beam diameter at the aperture (1/e2, mm) | ~1.0 |
| Beam height from base plate (mm) | 25 |
| 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 TEM-F-685 with the closest available models in the Fiber Lasers family.
| Selection parameter | TEM-F-685 (current) | MDL-III-685L | MDL-III-685-SM |
|---|---|---|---|
| Wavelength | 685 nm | 685 nm | 685 nm |
| Optical power / pulse energy | 1~20 mW | 1~50 mW | 1~20 mW |
| Operating mode / pulse width | CW | CW | — |
| Beam quality | <1.1 | <1.5 | — |
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