Fiber output, PM options, seed formats
FL-618-LN-L618 nm orange single-frequency low-noise fiber laser
618 nmThe FL-618-LN-L is a 618 nm continuous-wave fiber laser. Pump energy is supplied to an active fiber, which guides the light and provides optical gain as it propagates. Output coupling then delivers the amplified beam to the experiment. 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-618-LN-L
27 specification rows
| Output / average power | 1~50 mW |
|---|---|
| Beam / notes | Fiber laser Low Noise Red Laser |
| Operating mode | CW |
| Free space output power (mW) | 1-50 |
| Fiber coupled output power (mW) | 1-25 |
| Power stability (rms, 4 hours, ±3℃) | <2%, <1% |
| Transverse mode | TEM00 |
| Longitudinal mode | SLM |
| Current adjustment range | 1-100% |
| Spectral linewidth (nm) | <0.002 |
| Relative intensity noise (rms,10Hz-3MHz) | <0.1%, <0.05% |
| Frequency shift (MHz)(over ±2℃and 8hours ) | <±200 |
| M2 | <1.1 |
| Fiber connector | FC/APC |
| Fiber length(m) | 1 |
| Fiber jacket | PVC, Metal optional |
| Polarization ratio (dB) | >15 Horizontal (Vertical optional) |
| Warm-up time (minutes) | <30 |
| Cooled method | Air cooled or Water cooled |
| Operating temperature (℃) | 15-30 |
| Operating voltage (VAC) | 110/220V |
| Expected lifetime (hours) | >10000 |
| Wavelength (nm) | 618±1 |
| M² | <1.1 |
| Numerical aperture | 0.12NA |
| Beam diameter (mm) | ~1@free space output |
| Pointing stability (urad) | <15 |
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Model selection
Nearby series comparison
Compare FL-618-LN-L with the closest available models in the Fiber Lasers family.
| Selection parameter | FL-618-LN-L (current) | FL-618-SLM | MRL-U-618-SF |
|---|---|---|---|
| Wavelength | 618 nm | 618 nm | 618 nm |
| Optical power / pulse energy | 1~50 mW | 1-50 mW | 1~50 mW |
| Operating mode / pulse width | CW | CW | CW |
| Beam quality | <1.1 | <1.1 | TEM00 |
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