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Description

1550nm Ultra-Narrow Linewidth Fiber Laser – DK-XS-DT-006-A/2

The 1550nm Ultra-Narrow Linewidth Fiber Laser from DK Photonics is engineered to deliver exceptional performance for demanding photonics applications. Utilizing a rare earth-doped fiber distributed feedback (DFB) laser cavity, this laser provides a single longitudinal mode output at 1550nm with an impressively narrow spectral linewidth of less than 3kHz. This ultra-stable output is ideal for applications requiring high coherence and minimal phase noise, such as advanced fiber optic sensing, coherent communication systems, and precision metrology.

Designed with an all-fiber DFB resonator structure, the laser ensures stable wavelength operation without mode hopping, offering superior reliability and consistency over extended periods. The side mode suppression ratio (SMSR) exceeds 60dB, ensuring a clean and pure spectral output that is critical for high-precision measurements and signal processing. The laser is available in both module and desktop configurations, providing flexibility for integration into laboratory setups or OEM systems.

The DK-XS-DT-006-A/2 fiber laser stands out for its robust short-term and long-term power stability, with minimal drift over time, making it a trusted seed source for fiber amplifiers and a preferred choice for distributed acoustic sensing (DAS), hydrophone systems, and coherent light generation. The use of high-quality SMF-28 or PM1550 Panda fiber ensures compatibility with standard telecom and sensing infrastructures, while the FC/APC optical connector guarantees low back-reflection and reliable connectivity.

With its compact footprint, low power consumption, and wide operating temperature and humidity ranges, this 1550nm fiber laser is well-suited for both laboratory research and field deployments. Its advanced design and performance parameters position it among the leading ultra-narrow linewidth fiber lasers available on the market, meeting the stringent requirements of modern photonics and sensing applications.

1550nm Ultra-Narrow Linewidth Fiber Laser

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Specifications

Center Wavelength: 1550 nm
Output Power: 0.1 W
Output Mode: Not Specified
Spectral Linewidth: 3 nm
Output Power Stability: </= 0.1%
Output Fiber Type: SMF-28, PM-1550, Other / Non-specified
Interface: Other / Not-specified
Cooling: Other
Electrical Requirements: 110V - 60Hz, 240V - 50Hz
Wavelength Tuning Range: 1550±0.5 nm
Spectral Linewidth: ≤3 kHz
Wavelength Instability: ≤±25 MHz
Side Mode Suppression Ratio: ≥50 dB
Output Power: 50/100 mW
Short-term Stability (15 Minutes): ≤ ±0.02 dB
Long-term Stability (8 Hours): ≤ ±0.05 dB
Fiber Type: SMF-28 / PM1550 Panda
Optical Connector: FC/APC
Control Mode (Desktop): Button
Control Mode (Module): RS232
Communication Interface: DB9 Female (Optional)
Power Supply (Desktop): 100~240V AC, <30W
Power Supply (Module): 5V DC, <15W
Dimensions (Desktop): 260(W)×280(D)×120(H) mm
Dimensions (Module): 125(W)×150(D)×20(H) mm
Operation Temperature Range: -5~+55°C
Operation Humidity Range: 0~70%

Got questions about specs? Use the inquiry form to ask.

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Features

  • Ultra-Narrow Linewidth: Spectral linewidth ≤ 3 kHz for high coherence and precision applications.
  • Stable 1550 nm Output: Center wavelength at 1550 nm (tunable ±0.5 nm), ideal for telecom and sensing.
  • All-Fiber DFB Resonator Structure: Ensures single longitudinal mode operation and robust stability.
  • High Side Mode Suppression Ratio (SMSR): ≥ 50 dB for ultra-pure spectral output.
  • Excellent Power Stability: Short-term stability ≤ ±0.02 dB (15 min), long-term stability ≤ ±0.05 dB (8 hours).
  • Output Power Options: Available in 50 mW or 100 mW constant output (non-adjustable).
  • Fiber Type Options: Choose between SMF-28e (single mode) or PM1550 Panda (polarization-maintaining) fiber.
  • Flexible Packaging: Offered as a compact module or desktop unit to suit various integration needs.
  • Easy Control & Communication: Desktop version with button control; module version with RS232 interface (DB9 optional).
  • Reliable Optical Connector: Standard FC/APC connector for low back-reflection and secure connection.
  • Wide Operating Conditions: Operates from -5°C to +55°C and 0–70% humidity for versatile deployment.
  • Low Power Consumption: Desktop: <30W (100–240V AC); Module: <15W (5V DC).
  • Compact Dimensions: Desktop: 260×280×120 mm; Module: 125×150×20 mm for easy system integration.
  • Customizable Wavelength Range: 1545–1560 nm available upon request for specialized applications.
  • Ideal for Advanced Applications: Perfect as a laser seed source, in acoustic sensors, hydrophones, fiber distributed sensing, and coherent detection systems.

Applications

  • Laser Seed Source for Fiber Amplifiers
    Provides a highly stable, ultra-narrow linewidth seed for Erbium-Doped Fiber Amplifiers (EDFAs) and other high-power fiber laser systems, ensuring superior spectral purity and coherence.
  • Coherent Optical Communication
    Ideal for advanced coherent communication systems, including long-haul and metro networks, where ultra-narrow linewidth and low phase noise are critical for high data rates and signal integrity.
  • Fiber Optic Sensing (Distributed and Point Sensing)
    Used in distributed fiber optic sensing (DAS, DTS, BOTDA, BOTDR, OFDR) for precise measurement of temperature, strain, and acoustic signals over long distances.
  • Interferometric Sensing and Metrology
    Enables high-resolution interferometric measurements in scientific research, precision metrology, and industrial monitoring applications.
  • Hydrophone and Acoustic Sensor Systems
    Serves as a stable light source for underwater acoustic sensing, hydrophones, and seismic monitoring, providing high sensitivity and low noise performance.
  • Coherent LIDAR and Remote Sensing
    Supports coherent LIDAR systems for wind speed detection, atmospheric monitoring, and remote sensing, benefiting from the laser’s narrow linewidth and high coherence.
  • Quantum Optics and Quantum Key Distribution (QKD)
    Essential for quantum communication experiments and QKD systems, where phase stability and ultra-narrow linewidth are required for secure data transmission.
  • Optical Frequency Standards and Atomic Clocks
    Used as a reference laser in optical frequency standards, atomic clocks, and high-precision spectroscopy due to its exceptional frequency stability.
  • Optical Heterodyne Detection
    Provides a stable local oscillator for optical heterodyne detection in advanced measurement and signal processing systems.
  • Test and Measurement Equipment
    Integrated into optical test and measurement setups for calibration, spectral analysis, and system characterization in R&D and manufacturing environments.

Frequently Asked Questions

What is the 1550nm Ultra-Narrow Linewidth Fiber Laser from DK Photonics?
The 1550nm Ultra-Narrow Linewidth Fiber Laser from DK Photonics is a single-frequency, rare earth-doped fiber laser featuring an all-fiber DFB (Distributed Feedback) resonator structure. It delivers a spectral linewidth of ≤3kHz, high side mode suppression ratio (≥50dB), and stable output at 1550nm, making it ideal for applications such as laser seed sources, acoustic sensors, hydrophones, and distributed fiber sensing.
What are the main applications of the DK Photonics 1550nm Ultra-Narrow Linewidth Fiber Laser?
This fiber laser is widely used as a laser seed source, in acoustic sensing, hydrophone systems, coherent light generation, and distributed fiber sensing. Its ultra-narrow linewidth and stable single-frequency output make it suitable for high-precision measurement and sensing applications.
What are the key performance specifications of the DK Photonics 1550nm fiber laser?
Key specifications include a center wavelength of 1550nm (tunable within 1545–1560nm for custom orders), spectral linewidth ≤3kHz, side mode suppression ratio ≥50dB, output power of 50mW or 100mW (constant), wavelength instability ≤±25MHz, and excellent short-term (≤±0.02dB) and long-term (≤±0.05dB) power stability.
What fiber types and optical connectors are available for this laser?
The DK Photonics 1550nm Ultra-Narrow Linewidth Fiber Laser is available with either SMF-28e single-mode fiber or PM1550 Panda polarization-maintaining fiber. The standard optical connector is FC/APC.
What package types and control interfaces does the DK Photonics fiber laser offer?
The laser is available in both module and desktop packages. The desktop version is controlled via a button, while the module version supports RS232 communication with an optional DB9 female interface.
What are the power supply and environmental requirements for the DK Photonics 1550nm fiber laser?
The desktop package operates on 100–240V AC (
Can the DK Photonics 1550nm Ultra-Narrow Linewidth Fiber Laser be customized?
Yes, DK Photonics offers customization for wavelength range (within 1545–1560nm), output power, fiber type, and package type. Customers are encouraged to provide detailed requirements when inquiring about custom configurations.

Got more questions? Use the inquiry form to ask the supplier directly.

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