Ultra-narrow Linewidth Single-frequency Fiber Laser (1kHz)
The fiber 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 | Numerical value |
| 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 linewidth | kHz | 1kHz |
| Frequency instability | MHz | <20 ( 15min)<100 (long-term) |
| Relative intensity noise @>1MHz | dB/Hz | <-140dB/Hz@1MHz |
| Phase noise | dB | <-130 |
| Power instability @>3h | – | <1% |
| Output fiber type | – | |
| Supply voltage | – | DC 5V |
| Product size | mm | 120x80x25(modular) |
| 296x260x89 (table mode) | ||
Ordering Information of Ultra-narrow Linewidth Single-frequency Fiber Laser
This indicator is a typical optical wavelength indicator, and other wavelengths and frequencies can be selected.
| UNDFBL | Wavelength (nm) | Output power (mw) | Output fiber type | Connector form | Module size |
| 1550 | 100 . . . 30 20 10 | SMF: Random polarization output of single-mode fiber PMF: Polarization maintaining fiber, line polarization output | FC/APC FC/PC | M4: 120x80x25 B= Benchtop |
