Ultra-Narrow Linewidth 1.5µm Single Frequency Fiber Laser
The CKSF-R narrow linewidth single frequency fiber laser offers linewidth below kHz level, features ultra-low phase noise and relative intensity noise (RIN), and the side-mode suppression ratio (SMSR) is over 55dB. The output power is at mW level, and higher output power can be tailored to your specific needs. The wavelength is available in range of 1530-1575nm.
The CKSF-R and CKSF-D series are ultra-narrow linewidth single frequency fiber lasers designed for high-precision optical applications. These lasers operate at 1.5 μm wavelength and provide exceptional frequency stability, low phase noise, and long coherence length. Using advanced erbium-doped fiber technology, this laser source delivers stable single-frequency output suitable for LiDAR, fiber optic sensing, laser spectroscopy, and coherent communication systems.
CKSF-D-ER-M: utilizing erbium-doped fiber, ultra-narrow linewidth <1kHz, low phase noise
CKSF-D-EY-M: utilizing erbium–ytterbium co-doped fiber, linewidth <15kHz, low relative intensity noise (RIN)
1.5µm Narrow Linewidth Single Frequency Fiber Laser, CKSF-R
Features
- Ultra-narrow linewidth
- Stable single-frequency & single polarization operation
- Free of mode-hops, no bursting noise
- Low phase noise and low relative intensity noise
- Flexible design, multiple wavelengths are optional
- Linear polarization output, high polarization extinction ratio (PER)
- Small size, robust package
- Long coherence length laser
Applications
- Fiber optic sensing
- LiDAR
- Cold atom physics
- Laser spectroscopy
- Coherent communication
- Other scientific research tasks
1.5µm Narrow Linewidth Single Frequency Fiber Laser, CKSF-D
Features
- Ultra-narrow linewidth
- Stable single-frequency & single polarization operation
- Free of mode-hops, no bursting noise
- Low phase noise and low relative intensity noise
- Flexible design, multiple wavelengths are optional
- Linear polarization output, high polarization extinction ratio (PER)
- Small size, robust package
Applications
- Fiber optic sensing
- LiDAR
- Cold atom physics
- Laser spectroscopy
- Coherent communication
- Other scientific research tasks
Specifications
| Parameter | Unit | Specification | |
| Typ. | Typ. | ||
| Part no. | CKLIS-D-ER-M | CKLIS-D-EY-M | |
| Center wavelength | nm | 1530-1570nm | |
| Output power | mW | 5-100 | |
| Laser emission | CW, Single frequency & Single longitudinal mode | ||
| Beam quality | M² | < 1.05 | |
| Linewidth | kHz | < 1 | < 10 |
| OSNR(50pm resolution) | dB | >50(typical>55dB) | >55(typical>60dB) |
| Relaxation oscillation peak frequency | kHz | ～600 | ～800 |
| Relative intensity noise(RIN) peak | dB/Hz | -100 | -110 |
| Relative intensity noise(RIN) | dB/Hz | 23 | |
| Output power stability | % | < 1 | |
| Wavelength thermal tuning range | nm | >0.7 | >0.8 |
| Fast PZT modulation | Optional | ||
| PZT modulation frequency | kHz | DC-20kHz | |
| Output isolation | dB | 30 | |
| Operating voltage | V | 12VDC | |
| Output fiber type | PM1550-XP | ||
| Output fiber length | m | >0.5 | |
| Optical connector | FC/APC | ||
| Output fiber for monitor | Optional | ||
| Interface | RS485 | ||
| Operating temperature | ℃ | 5-60 | |
| Storage temperature | ℃ | -85 | |
| Dimension | mm | 175（L)×130(W)×30(H) | |
| 145（L)×100(W)×25(H) | |||
Ultra-Narrow Linewidth Laser for Precision Optical Applications
Ultra-narrow linewidth fiber lasers are designed for applications requiring extremely stable frequency and long coherence length. The 1.5 μm single frequency fiber laser is widely used in LiDAR systems, fiber optic sensing, coherent communication, and precision spectroscopy.
With erbium-doped fiber technology, the laser provides stable single-frequency output and excellent spectral purity for demanding scientific and industrial applications.
Erbium-Doped Single Frequency Fiber Laser Technology
Techwin is known as an expert company in developing and manufacturing of fiber lasers, fiber amplifiers and fiber sources. We also strive to provide our customers with custom fiber laser solutions suited for your applications. All of our high-power fiber lasers and amplifiers are manufactured following a rigorous quality management system. We are more than happy to share our laser technology with worldwide customers, and committed to earn the ongoing trust of our customers with our industrial fiber lasers coupled with expert support and service in various industrial segments.
- Fiber laser sources & solutions
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- Ultra-narrow linewidth laser
- Long coherence length laser
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- Erbium-doped single frequency fiber laser
- 1.5 μm Single Frequency Pulsed Source
