The 1.5 μm frequency-stabilized laser seed source combines high-precision error signal extraction with feedback control to achieve stable output with frequency fluctuations below 1 MHz, meeting the requirements of precision measurement and high-coherence applications.
Noise Suppression Scheme
Error Signal Extraction Technology
Quantum Technology Fields
Precision Measurement Systems
Industrial Sensing Networks
| Technical Parameter | Unit | Technical Specification | ||
|---|---|---|---|---|
| Min | Typical | Max | ||
| Central Wavelength | nm | 1550 | ||
| Laser Mode | / | Single Longitudinal Mode, Continuous Wave | ||
| Output Power | mW | 20 | 30 | |
| Linewidth | kHz | 15 | 20 | 25 |
| Optical Signal-to-Noise Ratio | dB | 55 | ||
| Wavelength Drift (RMS @ 2h) | kHz | ±500 | ||
| Output Power Adjustment | % | 1–100 | ||
| Operating Temperature | °C | −10 | 45 | |
| Polarization Type | / | Linear Polarization | ||
| Polarization Extinction Ratio | dB | 20 | 21 | 23 |
| Operating Voltage | VDC | 12 | ||
| Output Fiber Type | / | PM1550 | ||
| Power Consumption | W | |||
The 1.0 μm point light source is a single-mode continuous-output fiber laser. It features a Fabry–Perot cavity design and employs single-clad fiber pumping technology to achieve high-performance laser output, with an output power of up to 200 mW. It also offers nearly diffraction-limited beam quality and can be widely used in scientific research, experimental teaching, and device testing and measurement.
High Beam Quality
Stable Power
Polarization-Maintaining Single-Mode Output
Scientific Research
Experimental Teaching
Device Testing and Measurement
The 1.5 μm ultra-low noise seed source features completely independent intellectual property rights and performance reaching an internationally leading level. It adopts an innovative combined optical and optoelectronic feedback noise suppression scheme, achieving intensity noise lower than −138 dB/Hz in the 1 MHz–100 MHz frequency range, and power stability better than 0.5% over 30 minutes.
Ultra-Low Intensity Noise
Excellent Power Stability
Completely Independent Intellectual Property Rights
Quantum Communication
Distributed Fiber Sensing
Coherent Optical Measurement
The 1.5 μm DFB single-frequency seed source is a single-frequency laser based on fiber Bragg grating technology. Its core advantages include mode-hop-free single longitudinal mode output, high polarization purity, and excellent environmental stability.
Stable Power
Reliable Performance
All-Fiber Structure
Single-Mode Output
The phase-modulated fiber seed source uses a single-frequency seed source and achieves GHz-level spectral broadening through a phase modulator. The output linewidth can be adjusted by controlling the RF signal output power. The seed source has a selectable central wavelength of 980–1120 nm and features wavelength tuning, adjustable output power, and configurable output linewidth.
Single Longitudinal Mode Output
Adjustable and Stable Linewidth
High Side-Mode Suppression Ratio
High-Power Narrow-Linewidth Lasers
Spectral Synthesis
Coherent Beam Combining
