Fiber output, PM options, seed formats
FL-1908-SLM1908 nm infrared single-frequency low-noise fiber laser
1908 nmThe FL-1908-SLM is a 1908 nm continuous-wave fiber laser. A seed laser establishes the optical signal, and a fiber amplifier increases its power while guiding the light in active fiber. Single-longitudinal-mode operation selects one resonator frequency. Linewidth describes the spread around that frequency, while frequency drift describes how its center moves over time. This distinction matters when matching the source to a narrow resonance or an interferometer.
Specifications
FL-1908-SLM
26 specification rows
| Output / average power | 1~5 W |
|---|---|
| Beam / notes | Laser |
| Operating mode | CW |
| Power stability (rms, 4 hours, ±3℃) | <2%, <1%, <0.5% |
| Transverse mode | TEM00 |
| Longitudinal mode | SLM |
| Current adjustment range | 1-100% |
| Spectral linewidth (kHz) | <50 |
| Relative intensity noise (rms, 10Hz-3MHz) | <0.3%, <0.1%, (<0.05% optional) |
| M2 | <1.1 |
| Fiber connector | FC/APC, Collimator optional |
| Fiber length(m) | 1 |
| Fiber jacket | PVC, Metal optional |
| Pointing stability (urad) | <5 / <10 |
| Polarization ratio (dB) | >15, after PM fiber |
| Warm-up time (minutes) | <30 |
| Cooled method | Air cooled or Water cooled |
| Operating temperature (℃) | 15-30 |
| Power supply (VAC) | 110/220VAC |
| Expected lifetime (hours) | >10000 |
| Wavelength (nm) | 1908±1 |
| Frequency shift (MHz)(over ±2℃and 8hours ) | <±200 |
| M² | <1.1 |
| Beam diameter (mm) | 4±1@Collimator output |
| Dimensions of Laser | 483×452 ×133mm3@Air cooled 483×461 ×120 mm3@Water cooled |
| Weight of Laser | 10kg@Air cooled, 11kg@Water cooled |
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 FL-1908-SLM with the closest available models in the Fiber Lasers family.
| Selection parameter | FL-1908-SLM (current) | FL-1908-LN-L | 1908 |
|---|---|---|---|
| Wavelength | 1908 nm | 1908 nm | 1908 nm |
| Optical power / pulse energy | 1~5 W | 1~5 W | 1~5000 mW |
| Operating mode / pulse width | CW | CW | Pulsed |
| Beam quality | <1.1 | <1.1 | <1.1 |
Related fiber lasers
Compare the FL-1908-SLM with nearby fiber lasers across the wavelength range.
