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 single-frequency seed laser is a laser with fully independent intellectual property rights and performance at an internationally advanced level. It features an ultra-compact DBR short-cavity design, effectively eliminating mode hopping and achieving ultra-narrow linewidth single longitudinal mode output.
The core technology is highly doped specialty fiber, which forms a centimeter-scale single-frequency laser resonator, enabling kilohertz-level spectral linewidth output and preventing mode hopping. Optimized circuit design ensures high frequency stability and low intensity noise. Additionally, the resonator incorporates special temperature-control protection and anti-shock vibration design, ensuring stable operation even under harsh environmental conditions.
Ultra-Narrow Linewidth
Mode-Hop Free
No Sudden Noise Spikes
High Side-Mode Suppression Ratio (SMSR)
Low Relative Intensity Noise (RIN)
Excellent Shock Resistance and High/Low Temperature Performance
Gravitational Wave Detection
Fiber Sensing
LiDAR
Coherent Communication
The 2.0 μm ultra-narrow linewidth single-frequency laser is a core component of high-precision optical systems. Its key features are extremely narrow linewidth, combined with single-frequency stability and low-noise characteristics, making it especially suitable for high-precision spectroscopy, coherent detection, and related applications.
Narrow Linewidth
Low Noise
High Power Output
High-Precision Spectroscopy
Coherent Detection
Medical Applications
LiDAR
The 2.0 μm DBR (Distributed Bragg Reflector) single-frequency seed source is a high-performance laser device designed for applications requiring high coherence and low noise. It is widely used in quantum information, high-resolution spectroscopy, LiDAR, and nonlinear frequency conversion. Its core advantages include kHz-level narrow linewidth, wide-range mode-hop-free tuning, high-power amplification compatibility, and a compact, environmentally robust design.
kHz-Level Narrow Linewidth
Mode-Hop-Free Wide Tuning
High Power Stability
Compact Design
Gas Detection
Quantum Computing
Quantum Precision Measurement
The 2.0 μm phase-modulated fiber seed source is a precision laser light source designed for the mid-infrared band. It employs advanced phase modulation technology and an all-fiber architecture to achieve stable narrow-linewidth laser output, making it an ideal seed source for building high-performance, high-power fiber laser systems.
Phase Modulation Technology
All-Fiber Structure
Stability and Controllability
Nonlinear Effect Suppression
LiDAR
Medical and Material Processing
Gas Sensing
Fundamental Research
