1550nm Ultra-narrow Line-width DFB Fiber Laser Single-frequency Laser

Ultra narrow linewidth single frequency fiber laser is a low noise single frequency fiber laser using a unique, rare earth doped fiber DFB laser cavity structure, ensure the single frequency narrow linewidth fiber laser to optimize the optical design, the output linewidth of kHz magnitude, the output spectrum side-mode suppression ratio(SMSR) over 60dB. At the same time, the unique polarization control technology and noise suppression technology were adopted to achieve stable linear polarization, single longitudinal mode, ultra narrow linewidth single frequency laser output, and ultra-low phase noise and intensity noise.

[Features]
1. Spectral line width ≤ 3KHz
2. Maximum coherent length > 100km
3. Stable optical fiber， DFB resonator structure
4. High frequency stability
5. High side mode rejection ratio
6. Anti earthquake design of module
7. Low relative intensity noise

[Applications]
1. Laser seed source
2. Acoustic sensing, hydrophone
3. Fiber Distributed Sensing
4. Coherent optical communication

[Optical Specifications]

[Environment and Power Supply]