780 nm Single-Frequency Continuous-Wave Fiber Lasers / Amplifiers
The 780 nm single-frequency continuous-wave fiber laser uses an ultra-narrow linewidth DFB laser as the seed source and achieves power amplification through an all-fiber amplifier. High-power frequency-doubled laser output is obtained using a single-pass periodically poled crystal scheme. This product covers a wavelength range of 765.5–782.5 nm and features narrow linewidth, mode-hop-free operation over a wide temperature range and under strong vibration, excellent beam quality (M² < 1.2), and high output power. It is widely used in Rb atom cooling, atomic gravity interferometers, optical lattices, and related applications.
Key Features
- Ultranarrow linewidth (< 5 kHz)
- Seed laser tuning supported
- Operates reliably under high/low temperature and vibration environments
- Excellent beam quality (M² < 1.2)
- Modehopfree operation
Applications
- Rb atom cooling
- Magic optical lattice
- Atomic gravimeters / atom interferometers
- Atomic clocks
Technical Parameters
| Parameter Name | Unit | Value |
|---|---|---|
| Optical Parameters | ||
| Central wavelength | nm | 1550±1 |
| Output Power | W | > 1.5 |
| Seed Linewidth | kHz | < 5 (single-frequency) |
| Side-Mode Suppression Ratio | dB | > 50 |
| Polarization Extinction Ratio | dB | > 25 |
| Power Stability (RMS) | — | ≤ 0.5% |
| Relative Intensity Noise | — | RIN -140 dBm/Hz @ > 100 kHz |
| Beam Quality | — | TEM₀₀, M² < 1.2 |
| Frequency Tuning Range | MHz | > 500 |
| Functional Parameters | ||
| Output Type | — | PM780 fiber, ≥ 1.5 m, FC/APC |
| Communication Protocol | — | RS485 |
| Cooling Method | — | Air cooling |
| Power Supply | — | AC 220 V |
| Total Power Consumption | W | < 300 |
| Environmental Parameters | ||
| Operating Temperature | °C | -20 to 50 |
Technical Parameters
