Power stability, linewidth, beam quality
TEM-LN-940940 nm near-infrared CW laser
940 nmThe TEM-LN-940 is a 940 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-940
17 specification rows
| Output / average power | 1~100 mW |
|---|---|
| Beam / notes | Low Noise Infrared Laser; TEM 00 |
| 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% |
| 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) | 940±10 |
| Ellipticity | >0.95 |
| M² | <1.1 |
| Beam diameter at the aperture (1/e2, mm) | ~1.0 |
| Beam divergence, full angle (mrad) | <1.5 |
| 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-940 with the closest available models in the CW Lasers family.
| Selection parameter | TEM-LN-940 (current) | MLL-III-940L | MLL-III-940 |
|---|---|---|---|
| Wavelength | 940 nm | 940 nm | 940 nm |
| Optical power / pulse energy | 1~100 mW | 1~250 mW | 1~1000 mW |
| Operating mode / pulse width | CW | CW | CW |
| Beam quality | <1.1 | <1.5 | Multimode |
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