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Description

MARS Series 1.0 µm High Power Single Frequency PM Fiber Amplifier

The MARS series 1.0 µm high power single frequency polarization maintaining (PM) fiber amplifiers are engineered for ultra‑narrow linewidth seed lasers where spectral purity and polarization stability are critical. Designed to work seamlessly with DFB, DBR, and other single frequency fiber laser sources operating around 1053 nm, 1064 nm, and 1083 nm, these amplifiers can boost input signals in the kHz-linewidth regime from milliwatt levels up to 50 W of output power. Throughout this amplification process the amplifier preserves the seed laser’s spectral characteristics, maintaining single-frequency operation, narrow linewidth, and high polarization extinction ratio.

At the core of the MARS series is a double‑clad Yb‑doped fiber amplification architecture powered by high‑performance multimode pump diodes. This design enables high optical-to-optical conversion efficiency while carefully managing nonlinear effects such as stimulated Brillouin scattering (SBS) and stimulated Raman scattering (SRS), which are common challenges in high power single frequency systems. The all‑PM fiber structure enhances polarization stability, making these amplifiers ideal for coherent applications, interferometry, and other polarization‑sensitive measurements. Continuous tunability of the output power allows the user to optimize operating conditions for maximum signal quality and system stability.

The amplifier is offered as a fully integrated benchtop Turn‑Key platform with an internal microprocessor for intelligent control and monitoring. A front‑panel interface typically includes an enable/disable key switch, clear status indicators, an LCD display for real‑time readout of operating parameters, and a control knob for smooth adjustment of output power. After a short warm‑up period, the system provides excellent power stability under standard laboratory conditions, supporting long measurement runs and demanding experimental protocols without constant user intervention.

Reliability and operational safety are central to the MARS series design. The amplifier incorporates dedicated thermal management strategies and proprietary thermal treatment of the double‑clad fiber to support stable, long‑term high power operation. A high‑speed protection and interlock circuit continuously monitors both input and output optical power; if the seed signal falls below a defined threshold or a fault is detected, the system rapidly reduces or disables the pump power to protect the active fiber, the output optics, and any connected equipment. This robust protection concept aligns with best practices seen in high power single frequency amplifiers used in precision metrology and industrial environments worldwide.

With typical operating wavelengths at 1053 nm, 1064 nm, and 1083 nm, and standard output power configurations ranging from 1 W through 5 W, 10 W, and 20 W up to 50 W, the MARS series provides a scalable platform for a wide variety of applications. The high signal‑to‑noise ratio, low noise figure, and high PER all‑PM fiber design make it suitable for coherent beam combining, coherent detection, and advanced fiber sensing systems. In addition, the combination of high power and narrow linewidth supports frequency doubling to visible wavelengths, atom trapping and cooling experiments, and precision spectroscopy, where intensity stability and spectral fidelity directly impact experimental performance.

The standardized part numbering, such as MFAP‑Yb‑10xx‑B‑PW‑SF, reflects key configuration options including operating wavelength around 1.0 µm, benchtop housing, specified output power level, and single frequency operation. This modular approach allows users to select an amplifier that precisely matches their seed source and power requirements, from low‑power laboratory setups to high‑brightness systems requiring tens of watts of stable, single‑frequency output.

MARS Series 1um High Power Single Frequency Polarization Maintaining Fiber Amplifier

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Specifications

Amplifier Type: YDFA - Ytterbium-Doped Fiber Amplifier
Wavelength Range: 1040 – 1090 nm
Max Output Power: 47 dBm
Nominal Gain: 30 dB
Output Fiber Type: PM980, PLMA
Product Series: MARS series high power single frequency polarization maintaining fiber amplifier
Amplifier Type: 1.0 µm high power single frequency polarization maintaining fiber amplifier
Typical Operating Wavelength: 1053 nm / 1064 nm / 1083 nm
Operating Wavelength Code: 10xx (nm), typical 1053 / 1064 / 1083
Maximum Output Power: 50 W
Typical Output Power Options: 1 W / 5 W / 10 W / 20 W / 50 W
Input Signal Linewidth: kHz level (ultra-narrow)
Fiber Type: All polarization-maintaining (PM) fiber structure
Model Example: MFAP-Yb-10xx-SF
Ordering Code: MFAP-Yb-10xx-B-PW-SF
B Code: Benchtop
PW Code: Output power in W (e.g., 0.5-0.5 W, 1-1 W, 10-10 W)
SF Code: Single Frequency
Pump Type: High-power, high-performance multi-mode pumps
Amplification Technology: Double cladding fiber amplification
System Type: Turn-Key benchtop system with microprocessor control
Output Power Control: Continuously tunable output power
Operating Temperature For Stability Spec: 25 °C
Warm-up Time For Stability Spec: 30 minutes
Noise Figure: Low (qualitative)
Polarization Extinction Ratio (PER): High (qualitative)
Protection: High-speed response protection circuit monitoring input and output power
Applications: Coherent detection, coherent combining, atomic trapping, fiber sensing, frequency doubler
Manufacturer: Connet Laser Technology Co., Ltd.

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Features

  • High Output Power up to 50 W – Boosts ultra‑narrow linewidth single‑frequency seed lasers from kHz-level input powers up to 50 W, ideal for demanding high‑power coherent applications.
  • Single-Frequency, Ultra-Narrow Linewidth Preservation – Specifically optimized for DFB/DBR and other single-frequency fiber lasers, maintaining the seed laser’s linewidth and spectral purity throughout amplification.
  • All Polarization-Maintaining (PM) Fiber Design – Full PM architecture with high polarization extinction ratio (PER) ensures stable linear polarization, crucial for coherent detection, coherent combining, frequency doubling, and interferometric sensing.
  • 1.0 μm Ytterbium-Doped Operating Band – Typical operating wavelengths around 1053 nm, 1064 nm, and 1083 nm, covering key Yb-doped laser lines widely used in scientific research and precision measurement.
  • Wide Output Power Range – Standard output levels of 1 W, 5 W, 10 W, 20 W, and 50 W, with configurations tailored to different seed powers and system requirements.
  • Excellent Power Stability – Designed for long-term, stable operation; output power stability specified after a 30‑minute warm‑up at 25 °C, suitable for continuous experiments and industrial integration.
  • Low Noise Figure & High SNR – Low-noise amplification preserves signal-to-noise ratio, minimizing degradation of narrow-linewidth, low-power seed sources and enabling high-precision coherent measurements.
  • Double-Clad Fiber Amplifier Architecture – Uses high‑performance multimode pump diodes and double-clad Yb-doped fiber for high optical conversion efficiency, compact footprint, and robust high‑power handling.
  • Nonlinear Effect Suppression – Optimized fiber design and pump configuration to mitigate SBS, SRS, and other nonlinear effects, supporting higher output powers while maintaining beam quality and spectral characteristics.
  • Turn-Key Benchtop System – Fully integrated, plug‑and‑play amplifier with internal microprocessor control; no need for external pump management or complex alignment, reducing setup time and risk.
  • Front-Panel Controls & Monitoring – Equipped with:
    • Laser start/stop switch
    • LCD display for real‑time power and status readout
    • Rotary knob for continuous output power adjustment
    Ensures intuitive operation in both lab and industrial environments.
  • Continuously Tunable Output Power – Smooth, user‑adjustable power control enables easy optimization for nonlinear experiments, frequency conversion stages, and damage‑threshold‑limited systems.
  • Fast Protection & Safety Interlocks – High-speed response protection circuit continuously monitors input and output signals; automatically shuts down pump power if input signal is lost, protecting both the amplifier and connected optics.
  • Advanced Thermal Management – Proprietary thermal treatment and mechanical design support stable, long-term high‑power operation with minimized drift and enhanced component lifetime.
  • High Reliability & Industrial-Grade Build – Rugged benchtop platform from an experienced fiber-laser manufacturer, engineered for 24/7 operation in demanding research and OEM environments.
  • Coherent-Ready Performance – Maintains phase and polarization properties suitable for:
    • Coherent detection
    • Coherent beam combining
    • Phase‑sensitive interferometry
    making it ideal for advanced photonics and sensing architectures.
  • Optimized for Frequency Conversion – Stable, single‑frequency, linearly polarized output at 1.0 μm is well‑suited as a pump for frequency doublers and other nonlinear crystals, enabling efficient generation of visible and near‑IR wavelengths.
  • Ideal for Quantum & Atomic Applications – High‑power, narrow‑linewidth, polarized output supports atomic trapping, cooling, and precision spectroscopy at key transition wavelengths near 1.0 μm.
  • Excellent for Fiber Sensing Systems – High coherence and polarization-maintaining output enhance distributed fiber sensing, interferometric sensors, and coherent OTDR performance over long distances.

Applications

  • Coherent Beam Combining (CBC) – Use multiple MARS series high power single frequency PM fiber amplifiers to coherently combine ultra‑narrow linewidth seed lasers (DFB/DBR) into a phased array, achieving higher effective power with preserved beam quality for advanced directed energy research, lidar emitters, and long‑range optical communication.
  • Coherent Optical Detection & Heterodyne/Homodyne Receivers – Amplify low‑power single frequency local oscillators at 1053 nm, 1064 nm, or 1083 nm while maintaining spectral purity and polarization extinction ratio. Ideal for coherent lidar, FMCW lidar, coherent optical time‑domain reflectometry (C‑OTDR), and coherent communication test benches.
  • High‑Resolution Spectroscopy & Metrology – Boost ultra‑narrow linewidth seed lasers for precision absorption spectroscopy, frequency‑comb based metrology, and cavity‑enhanced spectroscopy. The low noise figure and preserved linewidth support ultra‑stable frequency references and high‑resolution spectral measurements in research laboratories.
  • Atomic, Molecular, and Optical (AMO) Physics – Provide high power, single frequency radiation for atomic trapping, laser cooling, and optical pumping of alkali and rare‑earth species near 1.0 µm. Typical transitions include systems that use 1064 nm or 1083 nm for optical dipole traps, optical lattices, and manipulation of cold atoms and ions in quantum experiments.
  • Optical Traps, Tweezers, and Dipole Potentials – Drive far‑off‑resonant optical dipole traps and optical tweezers with up to 50 W of single frequency, polarization‑maintaining output. The stable, narrow linewidth output is well‑suited for creating deep, low‑noise trapping potentials for ultracold atoms, nanoparticles, and microparticles.
  • Frequency Doubling and Nonlinear Frequency Conversion – Serve as a high‑power pump for second harmonic generation (SHG) and other nonlinear processes in crystals such as LBO, BBO, PPLN, or PPKTP. Generate visible and near‑UV wavelengths (for example, 532 nm from 1064 nm) with high efficiency and preserved coherence for precision spectroscopy, microscopy, and laser display sources.
  • Fiber Sensing and Distributed Sensing Systems – Act as a stable, high power source for interferometric and coherent fiber sensing schemes, including φ‑OTDR, BOTDR, BOTDA, and Rayleigh/Brillouin‑based distributed acoustic and temperature sensors. The all‑PM, single frequency design enhances signal‑to‑noise ratio and measurement range in structural health monitoring, perimeter security, and pipeline monitoring.
  • Interferometry and Precision Metrology – Provide the reference or probe beam in high‑precision interferometers, such as Michelson, Mach–Zehnder, Sagnac, and fiber‑based interferometers. The amplifier’s low phase noise and stable polarization support ultra‑precise displacement, vibration, and refractive index measurements in scientific and industrial metrology.
  • Gravitational Wave and Large‑Scale Interferometric Experiments – Amplify ultra‑stable 1064 nm single frequency master oscillators used in long‑baseline interferometers and precision length metrology systems. The high power, narrow linewidth output is compatible with demands similar to those in gravitational wave observatories, optical cavities, and long arm interferometer facilities.
  • Laser Radar (Lidar) and Range‑Finding – Use as the transmit amplifier in coherent lidar, Doppler lidar, and FMCW lidar systems operating around 1 µm. The excellent beam quality and narrow linewidth enable long‑range atmospheric wind profiling, speed and distance measurements, and target recognition with high sensitivity.
  • Quantum Communication and Quantum Sensing (Pump/LO Source) – Provide a stable high power pump or local oscillator for quantum key distribution (QKD) testbeds, squeezed‑light generation, and optomechanical experiments. The PM architecture and single frequency operation support low phase noise quantum measurements and advanced quantum sensing protocols.
  • Optical Frequency Standards and Stabilized Lasers – Amplify cavity‑stabilized or frequency‑locked seed lasers without compromising linewidth, enabling higher‑power beams for frequency standards, optical clocks, and ultra‑stable reference lasers used to interrogate narrow atomic and molecular transitions.
  • High‑Power Seed Source for Solid‑State and Fiber Lasers – Function as a master oscillator power amplifier (MOPA) stage for solid‑state or additional fiber amplifier chains. The MARS series boosts DFB/DBR seed lasers while preserving spectral properties, serving as a robust single frequency master for large‑scale laser systems and industrial beam delivery setups.

Frequently Asked Questions

What is the Connet MARS series 1.0 µm high power single‑frequency polarization‑maintaining fiber amplifier?
The Connet MARS series MFAP‑Yb‑10xx‑SF is a turn‑key, high‑power, polarization‑maintaining (PM) Ytterbium‑doped fiber amplifier designed to boost ultra‑narrow linewidth single‑frequency seed lasers (such as DFB or DBR fiber lasers) from kHz‑linewidth, low‑power levels up to as much as 50 W of output power around 1.0 µm. It uses double‑clad PM fiber and high‑performance multimode pump diodes to provide high optical efficiency while preserving the spectral characteristics (linewidth, center wavelength, single‑frequency operation) and polarization of the input signal.
What wavelengths and output powers are available for the MARS series single‑frequency PM fiber amplifiers?
The MFAP‑Yb‑10xx‑SF amplifiers operate in the Yb‑doped 1.0 µm band. Typical factory‑standard center wavelengths are 1053 nm, 1064 nm, and 1083 nm (denoted as “10xx” in the part number), but nearby custom wavelengths in the 1.0 µm Yb window are often available on request. Standard nominal output powers include 1 W, 5 W, 10 W, 20 W, and 50 W, specified as part of the ordering code (for example, “PW=10” for 10 W). Within each model, the output power is continuously tunable via the front‑panel control over a defined safe operating range.
What type of seed laser and input power are required for optimal operation?
The MARS series is specifically optimized for ultra‑narrow linewidth, single‑frequency seed lasers—typically DFB or DBR fiber lasers, or other narrow‑linewidth 1.0 µm sources. The amplifier is designed to preserve single‑frequency operation and low phase noise when seeded properly. Although exact input power requirements depend on the selected gain and output power option, these amplifiers typically accept low‑power seed levels in the range of a few mW up to tens or a few hundred mW. They are not intended to operate as lasers on their own and should always be used with a stable, spectrally clean seed source. For precise input power ranges and recommended seed specifications (linewidth, polarization extinction ratio, and allowable power), refer to the detailed datasheet of the specific MFAP‑Yb‑10xx‑PW‑SF model or consult Connet Laser.
Does the amplifier preserve polarization and single‑frequency linewidth of the seed?
Yes. The MARS series uses an all‑polarization‑maintaining fiber architecture with high polarization extinction ratio (high PER), so it preserves the input polarization state when properly aligned to the PM axis. The design, including optimized Yb‑doped double‑clad fiber and careful suppression of nonlinear effects (such as SBS and SRS), is intended to maintain the narrow linewidth and single‑frequency character of the seed laser. In practice, the output linewidth and coherence are dominated by the seed source, so a high‑quality, narrow‑linewidth, PM seed laser is required to fully benefit from the amplifier’s performance.
What protection and safety features are integrated in the MARS benchtop amplifier?
Each MARS benchtop unit is a fully integrated turn‑key system with internal microprocessor control. It includes a front‑panel key or pushbutton to enable the laser, an LCD display for real‑time status and power readout, and a knob to adjust output power. A high‑speed protection circuit continuously monitors both input and output optical power. If the input signal drops or disconnects, the control electronics automatically shut down or reduce pump power to prevent damage to the fiber and to protect the user and system. Thermal management is optimized via a specialized thermal treatment process, allowing stable long‑term operation at high power. Standard laser safety practices (appropriate eye protection, use of interlocks, and proper beam handling) are still required for safe operation.
What are typical applications of the MFAP‑Yb‑10xx‑SF high‑power single‑frequency PM fiber amplifiers?
The MARS series high‑power PM single‑frequency amplifiers are designed for demanding coherent and precision applications around 1.0 µm. Typical uses include coherent detection and lidar, coherent beam combining experiments, high‑resolution fiber sensing and interferometry, frequency doubling to access visible wavelengths (for example 532 nm from 1064 nm), atomic and optical lattice experiments (atomic trapping and cooling), and other scientific research requiring high‑power, narrow‑linewidth, polarization‑maintaining sources. They are also used as pre‑amplifiers or booster stages in advanced laser and measurement systems where stability, low noise figure, and high reliability are critical.
How do I specify and order the correct MARS series amplifier model for my setup?
Connet uses a structured part‑number system. A typical code for this family is MFAP‑Yb‑10xx‑B‑PW‑SF, where: “MFAP” denotes MARS series fiber amplifier; “Yb” indicates Ytterbium‑doped 1.0 µm band; “10xx” specifies the operating wavelength in nm (for example, 1053, 1064, 1083); “B” means benchtop configuration; “PW” is the nominal output power in watts (for example, 1, 10, 20, or 50 W); and “SF” stands for single‑frequency operation. When ordering, you should specify your exact center wavelength, required output power, seed power range, connector type, and any additional options such as custom interfaces or fiber pigtail specifications. For detailed configuration and availability, contact Connet Laser directly or a qualified distributor with your application requirements.

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