Ultra-narrow Linewidth Single-frequency Fiber Laser
The laser adopts a proprietary traveling-wave cavity design and a unique frequency stabilization technology so that the laser can maintain high-performance and stable output of single longitudinal mode, ultra-low relative intensity noise, and phase noise. The low-noise control circuit ensures the high-performance and stable operation of the laser.
Characteristics of Ultra-narrow Linewidth Single-frequency Fiber Laser
- Spectral linewidth less than 1kHz
- High side mode rejection ratio
- High-frequency stability, no mode hopping
- Low relative intensity noise
Applications of Ultra-narrow Linewidth Single-frequency Fiber Laser
- Distributed optical fiber sensing
- Coherent optical communication
- Fiber optic hydrophone
- Lidar
| Parameter index | Unit | Nhumericalvalue |
| Central wavelength range | nm | 1540-1560 optional |
| Side mode rejection ratio | dB | > 60 |
| Output power | mW | 20 (Note:10-1000mW multiple specifications are available) |
| Polarization state | – | |
| Polarization extinction ratio | dB | > 25 |
| Degree of polarization | – | 0.99 |
| Spectral line width | kHz | 1 kHz / 3kHz |
| Frequency instability | MHz | < 20 ( 15min) < 100 (long-term) |
| Relative intensity noise @>1MHz | dB/Hz | < -140 dB/Hz@1MHz |
| Phase noise | dB | < -130 |
| Power in stability @ >3h | – | <1% |
| Output fiber type | – | |
| Supply voltage | – | DC 5V |
| Module size | mm | 120x80x25 (modular) |
| 296x260x89 (table mode) | ||
Ordering Information of Ultra-narrow Linewidth Single-frequency Fiber Laser
| Wavelength(nm) 1550 | Output power (mW) | line width | Output fiber type | Connector form | Module size |
| 100 . . . 30 20 10 | 1kHz 3kHz | SMF: Random polarization output of single-mode fiber PMF: Polarization maintaining fiber, line polarization output | FC/ APC FC/ PC | M4： 120x80x25 B = Benchtop |
