Power stability, linewidth, beam quality
TEM-LN-650650 nm red CW laser
650 nmThe TEM-LN-650 is a 650 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-LN-650
18 specification rows
| Output / average power | 1~50 mW |
|---|---|
| Beam / notes | Low Noise Red Laser |
| Operating mode | CW |
| Power stability (rms, 4 hours ± 3°C) | <2%, <1%, <0.5% |
| Transverse mode | TEM00 |
| Noise of amplitude (rms, 20Hz-20MHz) | <1%, <0.5% |
| 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) | 650±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-LN-650 with the closest available models in the CW Lasers family.
| Selection parameter | TEM-LN-650 (current) | MLL-III-650L | MLL-III-650 |
|---|---|---|---|
| Wavelength | 650 nm | 650 nm | 650 nm |
| Optical power / pulse energy | 1~50 mW | 1~180 mW | 1~1000 mW |
| Operating mode / pulse width | CW | CW | CW |
| Beam quality | <1.1 | Near TEM00 | Multimode |
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