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Description

980 nm High Stability Multi‑Mode Pump Laser Source – VENUS Series

The VENUS series 980 nm high stability multi‑mode pump laser source is a precision-engineered, benchtop and module-ready platform designed specifically for demanding fiber laser and fiber amplifier applications. Built around a single-emitter, high-brightness pump diode, this source delivers high optical output power with excellent beam quality, enabling efficient pumping of double‑clad fiber lasers and amplifiers. Its compact, fully integrated design combines the laser head, driver electronics, thermal management, and control interface into one turnkey instrument that is ideal for both laboratory research and industrial manufacturing environments.

To support precise and repeatable experimentation, the benchtop VENUS unit incorporates a high‑definition LCD that simultaneously displays operating current and voltage, together with real‑time output power information. Continuously adjustable output power from 0 to 100% of the rated level allows users to finely tune the pump conditions to match specific gain fibers, experiment protocols, or test procedures. Compared with many conventional pump modules and generic laser diode drivers, this integrated source minimizes setup complexity, reduces the risk of mismatched components, and shortens the time from installation to stable operation.

A key differentiator of the VENUS series is its built‑in optical isolation, optimized to protect the pump diode from back‑propagating amplified spontaneous emission (ASE) and reflections. The internal isolator typically provides around 30 dB isolation in the 1040–1200 nm band, effectively blocking backward ASE from Yb‑doped fiber lasers and amplifiers and greatly reducing the risk of catastrophic optical damage to the pump diode facet. This robust protection architecture, combined with carefully engineered drive electronics and thermal control, yields excellent long‑term output stability and reliability, which is especially important in high‑power continuous‑wave operation and extended test runs.

The standard operating wavelength is centered around 980 nm, a widely used pump band for erbium‑ and ytterbium‑doped fiber systems because of its efficient absorption and low noise characteristics. For applications requiring alternative pump schemes or specific gain profiles, versions at 915 nm and 940 nm are also available. These options make the VENUS series suitable as a pump source for a broad range of fiber lasers, from high‑power Yb‑doped systems to EDFAs and specialized laboratory setups. The specified spectral width (FWHM) of up to 6 nm provides a good balance between efficient absorption in active fibers and controlled spectral characteristics for more sensitive optical architectures.

The laser output is delivered via a high‑power multimode fiber, typically 105/125 or 106.5/125 μm with numerical apertures of 0.15 or 0.22, allowing efficient coupling into double‑clad fibers and other multimode waveguides used in modern high‑power fiber laser designs. A standard FC/APC connector is provided to minimize back‑reflection and to ensure safe, repeatable mating; other connector options can be configured to match existing setups or OEM integration requirements. The fiber pigtail length of more than one meter offers convenient routing and flexibility when integrating into optical benches or enclosed systems.

From a performance standpoint, the VENUS series is engineered to maintain stringent power stability over both short and extended time scales. Under typical operating conditions, the output power stability can be on the order of ±0.1% over 15 minutes and within ±1.0% over eight hours after thermal equilibrium is reached. This level of stability is particularly valuable for precision test and measurement, spectral analysis, and long-duration reliability studies where fluctuations in pump power can directly impact measurement accuracy, laser linewidth, or gain dynamics. The source supports both coarse and fine power adjustment modes, making it straightforward to dial in the exact output level required by the experiment or process.

The VENUS multi‑mode pump laser source is available in several standard power classes, typically including 9 W, 20 W, 30 W, and 60 W, with the option to request higher powers for more demanding applications. This scalable power portfolio enables users to select an appropriate configuration for anything from small‑signal fiber amplifier pumping to high‑power fiber laser architectures. The instrument operates from a wide‑range AC input (100–240 VAC), simplifying deployment in different lab or production environments worldwide, and its benchtop chassis—approximately 320 mm × 280 mm × 150 mm—is compact enough to fit easily on standard optical tables or within test racks.

Thermal and environmental robustness are also central to the product design. The VENUS series is specified fo

980nm High Stability Multi Mode Pump Laser Source for Fiber Lasers

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Specifications

Center Wavelength: 0.976 um
Output Power: 60000 mW
Output Power Tunable Mode: Coarse / Fine
Dimensions: 320(L) x 280(B) x 150(H) mm
Storage Temperature: -40 to +85 C
Operating Temperature: 0 to +30 C
Power Consumption: 150 W
Operating Voltage: 100 to 240 V AC
Optical Connector: FC/APC (other options available)
Output Fiber Length: >1 m
Output Fiber Type: 105/125 or 106.5/125 NA=0.15 or 0.22
Part No.: VLSM-XXXX-B
Output Power Tunable Range: 0 to 100%
Output Power Stability (8hrs, Typ.): ±1.0%
Output Power Stability (15min, Typ.): ±0.1%
Output Isolation (typ.): 30 dB
Spectral Width (FWHM): 6 nm
Operating Wavelength Range: 973 to 980 nm
Output Power Range: 9 to 60 W

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Features

  • High-Power 980 nm Multi-Mode Pump Source – Typical output powers of 9 W, 20 W, 30 W, and 60 W (higher power available on request), ideal for driving high-power double‑clad fiber lasers and fiber amplifiers.
  • Optimized for Fiber Laser & Amplifier Pumping – Purpose‑designed pump laser source for high‑power fiber lasers and EDFAs, providing high brightness and efficient coupling into 105/125 μm or 106.5/125 μm fibers with NA 0.15 or 0.22.
  • Wavelength-Stabilized Options – Standard operation around 980 nm (973–980 nm), with optional wavelength‑stabilized models and additional wavelengths such as 915 nm and 940 nm for optimized pumping of different gain media.
  • Ultra-High Output Stability – Exceptional power stability of ±0.1% (15 min) and ±1.0% (8 h typical at 25 °C after warm‑up), ensuring repeatable measurements and long‑term process reliability.
  • Built-In Isolated Pump Diode – Integrated optical isolation (typically 30 dB, ≥25 dB) against backward ASE and reflections in the 1040–1200 nm band, protecting the pump diode and enhancing system lifetime.
  • Continuously Adjustable Output Power (0–100%) – Wide dynamic range with coarse/fine power tuning modes, enabling precise output power setting for lab experiments, spectral analysis, and manufacturing test setups.
  • High Brightness, Single-Emitter Design – Uses a single‑emitter multi‑mode pump diode to deliver high brightness and efficient fiber coupling, suitable for compact, high‑power fiber laser architectures.
  • Intuitive Benchtop Platform with LCD Display – High‑definition LCD simultaneously displays operating current and voltage, allowing real‑time monitoring and safer operation in R&D and production environments.
  • Compact Module Option for OEM Integration – Available as a benchtop instrument (B) or compact module (M) for system integrators building fiber lasers, test equipment, or OEM optical sub‑systems.
  • Fiber-Delivered Output with FC/APC Connector – Standard high‑reliability fiber output (>1 m length) with FC/APC connector; other connector options available for easy integration into existing fiber networks and laser setups.
  • Broad Feedback Protection (1040–1200 nm) – Optional feedback protection (SP=1) to guard against high‑power backward signals in the 1.0–1.2 μm region, crucial for Yb‑doped fiber laser pumping and amplifier systems.
  • Narrow Spectral Width – Spectral width (FWHM) ≤ 6 nm, delivering efficient absorption in doped fibers while reducing unwanted thermal loading and improving overall pump efficiency.
  • Wide AC Input and Low Power Consumption – Operates from 100–240 VAC with max power consumption of about 150 W, suitable for global deployment and energy‑efficient continuous operation.
  • Laboratory-Ready and Production-Proven – Designed for spectral analysis, test and measurement, and general laboratory use, while also robust enough for manufacturing test lines and 24/7 pump applications.
  • Wide Operating & Storage Temperature Range – Reliable performance from 0 to +30 °C operating temperature and −40 to +85 °C storage temperature, providing flexibility for various environmental conditions.
  • Compact Footprint for Space-Constrained Racks – Benchtop unit dimensions of approximately 320 mm (L) × 280 mm (W) × 150 mm (H), allowing easy placement on optical tables or in test racks.
  • Flexible Configuration & Ordering – Configurable model structure (VLSM‑XXXX‑P‑PW‑<SP>) allows selection of operating wavelength, package style (benchtop or module), output power rating, and feedback protection to match specific application needs.
  • High Reliability for Demanding Fiber Laser Systems – Industrial‑grade design, robust protection circuitry, and integrated isolation provide long lifetime and low maintenance for fiber laser OEMs and research facilities.

Applications

  • High‑Power Pump Source for Double‑Clad Fiber Lasers
    Optimized as a 980 nm high‑stability multimode pump laser for Yb‑doped double‑clad fiber lasers used in industrial materials processing, micromachining, and precision manufacturing.
  • Fiber Amplifier Pumping (Yb‑Doped & Other Rare‑Earth Doped Fibers)
    Serves as a stable pump source for high‑gain Ytterbium‑doped fiber amplifiers and other rare‑earth doped fiber amplifier stages in CW and pulsed systems.
  • Seeded High‑Power Fiber Laser Systems
    Used to pump MOPA (Master Oscillator Power Amplifier) laser architectures, enabling power scaling of narrow‑line seed lasers for industrial and scientific platforms.
  • Research on Nonlinear Fiber Optics
    Provides a stable, high‑brightness pump for experiments in supercontinuum generation, four‑wave mixing, Raman and Brillouin scattering, parametric amplification, and other nonlinear effects in specialty fibers.
  • Spectral Analysis and Characterization of Active Fibers
    Used as a controllable pump in spectral analysis of doped fibers, saturation measurements, gain characterization, and absorption studies in R&D labs.
  • Laser Materials and Component Characterization
    Acts as a test source for characterizing fiber Bragg gratings, combiners, pump/signal couplers, isolators, high‑power connectors, and other passive/active fiber components at 915–980 nm.
  • Test and Measurement in Fiber Laser Manufacturing
    Integrated into production lines for burn‑in, reliability testing, end‑of‑line validation, and incoming inspection of high‑power fiber components and modules.
  • Optical Communication Subsystem Testing
    Used as a robust pump or stress source to evaluate EDFAs/YDFAs, high‑power links, and pre‑amplifier stages in telecom, CATV, and data‑center subsystems that rely on 980 nm pumping.
  • High‑Power Supercontinuum and Broadband Source Pumping
    Provides the high‑stability pump required for supercontinuum fiber sources and broadband white‑light sources for spectroscopy and metrology.
  • Spectroscopy and Photoluminescence Excitation
    Applied as an excitation source for rare‑earth‑doped materials, phosphors, and solid‑state gain media that absorb around 915–980 nm in spectroscopic research.
  • Sensor Interrogation and Fiber Sensing
    Pump source for high‑power fiber‑based sensor systems, including distributed fiber sensing (DTS/DTSS), high‑power FBG interrogation units, and structural health monitoring platforms.
  • Medical and Biophotonics Laser Pumping (System Integration)
    Integrated as a pump module (915–980 nm) for medical and biophotonics laser systems where the actual treatment or imaging wavelength is generated in a doped‑fiber or crystal stage.
  • Optical Trapping and Optical Tweezers Back‑End Pump
    Used as a pump for high‑power IR laser stages that are subsequently frequency‑converted or wavelength‑shifted for optical trapping and manipulation experiments.
  • Frequency Conversion and Nonlinear Crystal Pumping
    Acts as a high‑power pump for frequency‑doubled or frequency‑shifted sources when coupled into nonlinear crystals or specialized fibers for wavelength conversion.
  • Laser Cooling and Atomic/Optical Physics Platforms
    Provides a robust pump for Yb‑based and other IR laser systems used in atomic physics setups, optical lattices, and cold‑atom experiments where stable high power is required.
  • Reliability and Lifetime Testing of High‑Power Fiber Connectors
    Used as a controlled high‑power load to qualify endcaps, high‑power FC/APC connectors, splices, and mode‑field adapters under realistic operating conditions.
  • Educational and Advanced Laboratory Instruction
    Deployed in university and technical institute labs as a teaching tool for fiber laser design, pump management, thermal handling, and laser safety training.
  • Prototype Development of OEM Fiber Laser Modules
    Compact module configuration supports OEM integration into prototype and pre‑production high‑power fiber laser and amplifier systems.
  • General Laboratory Light Source for NIR Experiments
    Functions as a versatile near‑infrared high‑power source (915/940/976/980 nm) for miscellaneous laboratory applications requiring tunable output power and high stability.

Frequently Asked Questions

What is the Connet VENUS 980nm high stability multi‑mode pump laser source used for?
The Connet VENUS series 980nm high stability multi‑mode pump laser source is designed primarily as a high‑power pump for double‑clad fiber lasers and fiber amplifiers. Typical applications include pumping high‑power Yb‑doped fiber lasers, spectral analysis, test and measurement setups, and other laboratory and industrial R&D tasks that require a stable, tunable, high‑brightness multi‑mode pump in the 915–980 nm band.
What output powers and wavelengths are available for the VENUS multi‑mode pump laser source?
Standard models of the VENUS multi‑mode pump laser source offer typical output powers of 9 W, 20 W, 30 W, and 60 W, with higher powers available on request. The standard center wavelength is 980 nm (typ. 976–980 nm operating range), and other common pump wavelengths such as 915 nm and 940 nm are also available. The spectral width is up to about 6 nm FWHM, suitable for stable fiber‑laser pumping.
How stable is the output power of the Connet VENUS 980nm pump laser over time?
The VENUS pump laser is designed for high stability. After a 30‑minute warm‑up at 25 °C, the short‑term output power stability over 15 minutes is typically ±0.1% (max ±0.5%), and the long‑term stability over 8 hours is typically ±1.0% (max ±2.0%). The source also offers a 0–100% output power tuning range with coarse and fine adjustment modes, allowing precise control for sensitive fiber‑laser and amplifier setups.
What kind of fiber output and connector does the VENUS multi‑mode pump laser provide?
The VENUS series uses high‑power, large‑core multimode fiber, typically 105/125 μm or 106.5/125 μm with numerical apertures of 0.15 or 0.22, and an output fiber length of at least 1 m. The standard optical connector is FC/APC to reduce back‑reflection into the pump diode, though other connector options can be provided upon request for specific system integration needs.
How does the built‑in isolation and feedback protection work on the VENUS pump laser?
The VENUS multi‑mode pump laser integrates an isolated pump diode module that provides typically 30 dB isolation (≥25 dB) against backward ASE and reflections in the 1040–1200 nm range, which is where most Yb‑doped fiber lasers and amplifiers emit. This high isolation helps prevent amplified spontaneous emission (ASE) or laser signal light from coupling back into the pump diode and causing damage or instability. In the ordering code, the optional feedback protection is denoted by “‑1” in the SP field (SP: 0 = none, 1 = with feedback protection).
What are the electrical and environmental requirements for operating the VENUS 980nm pump laser source?
The benchtop VENUS pump laser operates from a universal AC input of 100–240 VAC and has a maximum power consumption of about 150 W under extreme temperature conditions. The specified operating temperature range is 0 to +30 °C, and the storage temperature range is −40 to +85 °C. The benchtop unit has approximate dimensions of 320 mm (L) × 280 mm (W) × 150 mm (H), making it suitable for standard lab benches and 19‑inch rack environments with appropriate shelving.
How do I specify and order a Connet VENUS series multi‑mode pump laser (model VLSM‑XXXX)?
The ordering code format is VLSM‑XXXX‑P‑PW‑. Here, XXXX is the operating wavelength in nm (e.g., 976, 915, or 940), P indicates the package type (B = Benchtop, M = Module), PW is the nominal output power in watts (e.g., 9 for 9 W, 25 for 25 W, 30 for 30 W, 60 for 60 W), and SP defines the feedback protection option (0 = without feedback protection, 1 = with feedback protection / isolation for ASE @1040–1200 nm). When ordering, you can also request specific fiber types, connector options, and custom higher power levels if required for your fiber‑laser system.

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

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