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Description

M520±10-30-D200/22-V5W-AP – 30 W Green Fiber-Coupled Diode Laser Module

The M520±10-30-D200/22-V5W-AP is a high‑power, fiber‑coupled green diode laser module designed for OEM integration into advanced laser systems. Delivering 30 W of continuous‑wave output around the 520 nm wavelength region, this module combines high optical performance with the stability and reliability required in demanding industrial, medical, and scientific environments. Its integrated water‑cooled baseplate and robust fiber‑coupled architecture make it a compelling choice for system builders seeking a compact, high‑brightness green source.

Operating at a centroid wavelength of 520 nm (typical) with a spectral width of 10 nm (FWHM), the module provides a vivid green emission suitable for applications such as materials processing on plastics and metals with high green absorption, laser pumping of certain solid‑state and dye lasers, fluorescence excitation, and high‑visibility illumination or projection. The wavelength band of 510–530 nm covers a useful range for many wavelength‑sensitive processes while maintaining a relatively narrow spectrum for efficient coupling and stable system performance.

The optical design incorporates two internal diode submodules connected in series on the electrical side, which are combined and coupled into a 200 µm core delivery fiber. This architecture allows the module to reach 30 W output power at the fiber exit while maintaining a numerical aperture of 0.22, compatible with common beam delivery optics, scanners, and focusing heads. The SMA905 (FSMA) fiber receptacle offers a well‑established and mechanically stable interface, making integration straightforward for OEMs who rely on standard industry fiber components.

From an electrical standpoint, the module is optimized for efficient operation in high‑power systems. With a typical threshold current of 0.2–0.25 A and an operating current range up to 2.0 A, the device operates at an approximate voltage of 120–123 V due to the series connection of the two internal laser submodules. A slope efficiency of about 23.6 W/A and power conversion efficiency of around 17% place this module in line with competitive high‑brightness green diode solutions, making it suitable wherever electrical‑to‑optical efficiency is an important design parameter.

Integrated monitoring and alignment aids further enhance usability and safety in OEM implementations. A built‑in thermistor (10 kΩ at 25 °C) enables accurate temperature monitoring for closed‑loop thermal control, which is critical to maintaining consistent wavelength and output power over long operating times. In addition, a red aiming beam at 650 nm (±10 nm) with approximately 2 mW output is provided, facilitating precise visual alignment of beam delivery optics and working distance in setups where the main high‑power green beam may not be visible or where safe, low‑power alignment is required during system installation and maintenance.

Thermal management is addressed via an integrated water‑cooled plate. The module is specified for cooling water temperatures in the 20–25 °C range, with a recommended flow rate greater than 4.0 l/min. Proper water cooling ensures stable operating conditions, protects the laser diodes from overheating, and contributes to long‑term reliability. This makes the module particularly suitable for continuous, high‑duty‑cycle applications and for integration into tightly packed laser heads where air cooling alone would be insufficient.

The M520±10-30-D200/22-V5W-AP is engineered as an OEM component rather than a stand‑alone laser product. It is intended for incorporation into complete laser systems that provide the required driver electronics, cooling circuits, interlocks, and safety measures. Once integrated into such systems, it can serve as a primary green source for precision micro‑machining, PCB processing, soldering and bonding of highly reflective materials, photochemical processes, biomedical instrumentation, or high‑visibility projection and illumination where compact high‑power green emission is essential.

With its combination of 30 W CW output at 520 nm, 200 µm/0.22 NA fiber delivery, robust SMA905 interface, integrated thermistor and aiming beam, and efficient water‑cooled platform, this module provides a balanced solution for OEM designers who require a powerful, fiber‑coupled green laser source that is straightforward to integrate and capable of reliable operation under demanding real‑world conditions.

Green 520nm 30W Fiber-Coupled Diode Laser

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Specifications

Laser Type: Continuous Wave (CW), Modulated
Fiber Type: Multi-Mode
Wavelength: 520 nm
Output Power: 30000 mW
Fiber Core Diamater: 200 um
Model: M520±10-30-D200/22-V5W-AP
Output Power (fiber): 30 W
Wavelength Tolerance: ±10 nm
Spectral Width (FWHM): 10 nm
Number Of Optical Submodules: 2
Fiber Core Diameter: 200 µm
Numerical Aperture: 0.22
Fiber Connector: SMA905 / FSMA
Threshold Current (min): 0.2 A
Threshold Current (typical): 0.25 A
Operating Current (min): 1.5 A
Operating Current (max): 2.0 A
Operating Voltage (min): 120 V
Operating Voltage (max): 123 V
Slope Efficiency: 23.6 W/A
Power Conversion Efficiency: 17 %
Thermistor Resistance At 25°C: 10 kΩ
Red Aiming Wavelength: 650 ±10 nm
Red Aiming Power: 2 mW
Cooling Water Temperature: 20–25 °C
Cooling Water Flow: > 4.0 l/min
Operating Humidity: < 75 %
Storage Temperature: -20 to +80 °C
Storage Humidity: 90 %
Cooling Method: Water cooling (integrated water plate)

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Features

  • High-Power 520 nm Green Output – 30 W CW
    Delivers up to 30 W continuous-wave optical power at a centroid wavelength of 520±10 nm, ideal for pumping, materials processing, biomedical, and scientific applications requiring bright green emission.
  • Narrow Spectral Width for Stable Performance
    Features a typical 10 nm FWHM spectral bandwidth, providing good spectral brightness and stability for wavelength‑sensitive setups and efficient coupling into external optics.
  • Fiber-Coupled Output for Easy Beam Delivery
    Integrated fiber-coupled design with an SMA905 (FSMA) fiber receptacle for straightforward integration into optical systems and remote beam delivery.
  • 200 µm Core, NA 0.22 Multimode Fiber Interface
    Optimized for industrial and OEM use with a 200 µm core diameter and 0.22 numerical aperture, balancing high power handling, efficient coupling, and flexible beam delivery over standard high‑power multimode fibers.
  • Dual Submodule Architecture
    Built from 2 optical submodules connected in series on the electrical side, offering high output power with enhanced robustness, simplified wiring, and improved current distribution.
  • Efficient Electrical Performance
    Typical operating current 1.5–2.0 A at about 120–123 V with a slope efficiency of 23.6 W/A and up to 17% power conversion efficiency, helping to reduce overall system power consumption and heat load.
  • Integrated Cooling Plate for Water Cooling
    Includes an integrated water-cooling plate, supporting cooling water temperatures of 20–25 °C and a flow rate > 4.0 l/min, ensuring reliable thermal management and stable long-term operation.
  • Onboard Thermistor for Temperature Monitoring
    Equipped with a 10 kΩ thermistor (at 25 °C) for precise temperature monitoring and closed-loop control, enabling safe operation and extended diode lifetime in demanding OEM environments.
  • Integrated Photodiode for Power Feedback
    Includes a built-in monitor photodiode (Photodiode P/N pins available at the electrical connector) to support active power stabilization and real-time output monitoring in advanced laser systems.
  • Red Aiming Beam at 650 nm
    Features an integrated 650±10 nm red aiming laser with about 2 mW output power, providing a visible alignment beam for safe, precise positioning when the high‑power green output is disabled.
  • OEM-Ready Electrical Interface
    Provides a dedicated multi-pin electrical interface with separate connections for both laser submodules, red aiming laser, thermistor, and photodiode, simplifying integration into complex OEM driver electronics.
  • Wide Environmental Storage Range
    Supports a broad storage temperature range of -20 to +80 °C and up to 90% storage humidity, facilitating transport and warehouse handling prior to integration.
  • Designed for OEM Integration
    Supplied as an OEM fiber-coupled semiconductor diode laser module, intended for incorporation into complete laser systems and equipment, allowing manufacturers to certify final products to IEC 60825-1 and relevant FDA/CDRH (21 CFR 1040.10 & 1040.11) requirements.
  • Compact, Robust Construction for Industrial Use
    Rugged mechanical design and water-cooled housing support 24/7 operation in industrial, medical OEM, and scientific instruments where high uptime and reliability are critical.
  • Ideal for Pumping, Illumination, and Materials Processing
    The combination of 30 W green power, fiber coupling, and integrated monitoring makes this module well‑suited for DPSS pumping, fluorescence excitation, laser projection, scientific illumination, and precision materials processing.

Applications

  • Pumping of solid-state and fiber lasers – High-brightness 520 nm, 30 W CW output is ideal for pumping frequency-converted and novel gain media in research and OEM laser systems.
  • Materials processing and micromachining – Visible green wavelength with 200 µm, NA 0.22 fiber delivery enables precise cutting, welding, scribing, drilling, and surface structuring of metals, polymers, ceramics, and thin films.
  • Precision plastic welding and soldering – Strong absorption of 520 nm in many polymers makes this module suitable for clear-to-colored plastic welding, selective soldering, and joining of dissimilar plastic components.
  • PCB and electronics manufacturing – Used for depaneling, trimming, marking, micro‑drilling of vias, and localized heating in assembly lines where compact fiber‑coupled green sources are preferred.
  • Laser marking and engraving – High-contrast marking of metals, anodized aluminum, plastics, and coated surfaces; suitable for serial numbers, barcodes, and branding on industrial products.
  • Surface treatment and texturing – Roughening, cleaning, and functional texturing of technical surfaces to improve adhesion, wettability, or tribological properties.
  • Photopolymerization and additive manufacturing – Efficient curing of green‑sensitive resins for 3D printing, stereolithography, and rapid prototyping systems requiring high power and fiber delivery.
  • Medical and biomedical illumination (OEM integration) – Integration into certified medical equipment for photodynamic therapy, green‑light tissue illumination, and fluorescence excitation in endoscopy and surgical visualization systems.
  • Fluorescence excitation and bio‑analysis – 520 nm output matches excitation bands of common fluorophores, suitable for flow cytometry, microscopy, DNA/protein analysis, and high‑throughput screening instruments.
  • Confocal and multipoint microscopy light sources – Fiber‑coupled delivery simplifies beam routing into microscopes and scanning heads for advanced imaging setups.
  • Holography and interferometry – High-brightness green source for digital holography, interferometric metrology, and research setups where fiber coupling offers stable mode delivery.
  • Machine vision and high‑intensity illumination – Used as a structured light or bright‑field/ dark‑field illuminator in automated inspection, alignment, and quality‑control systems.
  • Projection and display light engines (OEM) – Green primary in RGB laser projection, simulators, and stage lighting modules requiring robust 520 nm fiber‑coupled input.
  • Entertainment, show and architectural lighting – Integration into certified laser projectors and effect systems for bright green beams, audience‑scanning effects, and outdoor landmark illumination.
  • Scientific research and laboratory experiments – General-purpose high‑power 520 nm source for optics, photonics, and spectroscopy labs, including nonlinear optics, frequency conversion, and pump‑probe studies.
  • Raman spectroscopy and optical sensing – Useful pump wavelength for certain Raman excitation schemes and fiber‑based optical sensors in environmental and industrial monitoring.
  • Solar cell and semiconductor processing – Localized heating, thin‑film patterning, and defect annealing on wafers and photovoltaic cells, exploiting higher absorption of green vs. IR in some materials.
  • Printing, marking, and coding on packaging lines – High‑speed, non‑contact coding on plastics, foils, and coated papers in food, pharma, and consumer‑goods production.
  • Alignment and targeting in multi‑wavelength systems – Integrated red aiming beam (650 nm) assists in rapid and safe mechanical alignment, beam routing, and focus adjustment in complex optical assemblies.
  • Integration into OEM laser systems and subsystems – Designed as a fiber‑coupled 30 W green diode laser building block for system integrators developing custom industrial, medical, scientific, or defense laser platforms.

Frequently Asked Questions

What are the key specifications of the M520±10-30-D200/22-V5W-AP 520 nm fiber-coupled diode laser module?
The M520±10-30-D200/22-V5W-AP is a high-power, fiber-coupled green diode laser module designed for OEM integration. It provides 30 W continuous-wave (CW) output power at a centroid wavelength of 520 nm (range 510–530 nm) with a spectral width of 10 nm (FWHM). The output is delivered through a 200 µm core fiber (NA 0.22) with an SMA905 (FSMA) connector. Electrically, the series-connected dual submodule has a threshold current of 0.2–0.25 A, operating current of 1.5–2.0 A, and operating voltage of about 120–123 V with a typical slope efficiency of 23.6 W/A and ~17% power conversion efficiency. It includes a built‑in thermistor, photodiode, and 650 nm red aiming beam, and uses integrated water-plate cooling.
What are the typical applications of a 30 W, 520 nm fiber-coupled diode laser like this model?
High‑power 520 nm fiber‑coupled diode modules in the 20–40 W range are widely used in materials processing and bio/medical applications. Typical uses include plastic welding or soldering of light‑colored or transparent polymers, pumping of frequency‑converted or dye lasers, fluorescence excitation and spectroscopy, medical or dental illumination, machine vision and alignment with high brightness, and integration into OEM systems for projection, display, or entertainment lighting (after appropriate beam shaping and safety measures). The 200 µm/0.22 NA fiber and SMA905 connector make it compatible with standard process delivery fibers and common collimation optics found in industrial and scientific setups.
How should the M520±10-30-D200/22-V5W-AP diode laser module be cooled and what are the environmental limits?
This laser module uses integrated water-plate cooling and must be operated within its specified cooling and environmental conditions to maintain performance and lifetime. The cooling water temperature should be maintained at 20–25 °C with a flow rate greater than 4.0 L/min. Operating humidity should be kept below 75% non‑condensing, while storage temperature can range from –20 °C to +80 °C with storage humidity up to 90%. Stable, clean cooling water and temperature‑controlled operation are important to avoid thermal stress on the diodes and to maintain the specified wavelength and output power.
What fiber and connector does this 30 W 520 nm diode laser use, and can the fiber be changed?
The module is factory‑configured with a fiber receptacle optimized for a 200 µm core diameter, NA 0.22 multimode fiber with an SMA905 (FSMA) connector. This is the de‑facto standard for many industrial and scientific high‑power fiber‑coupled diode lasers and is compatible with a wide range of off‑the‑shelf collimators, focusing heads, and process fibers. In most OEM installations, the fiber assembly is considered part of the calibrated output—changing to a different core size or NA typically requires a different laser configuration or re‑optimization by the manufacturer. For best performance and warranty coverage, users should use fibers that match the specified 200 µm, NA 0.22 geometry and ensure proper SMA905 mating and cleanliness.
What electrical connections and monitoring features does the module provide?
The module contains two laser diode submodules connected in series, as well as an internal thermistor, photodiode, and a separate red aiming diode. Key pins are: pins 1 and 2 for LD1 anode/cathode, pins 3 and 4 for LD2 anode/cathode; the diodes are operated at 1.5–2.0 A and about 120–123 V total. Pins 9 (Aiming +5 VDC) and 10 (Aiming GND) drive the 650 ±10 nm red aiming beam at about 2 mW for safe alignment when the main 520 nm output is off. Pins 11 and 12 are connected to the 10 kΩ thermistor (at 25 °C) for temperature monitoring and feedback in a TEC/chiller controller. Pins 15 (Photodiode N) and 16 (Photodiode P) provide access to the built‑in photodiode for power monitoring and closed‑loop current control. Several pins (5–8, 13, 14) are not connected. A suitable constant‑current laser driver and interlock circuitry should be used according to the manufacturer’s pinout and safety guidelines.
Is the M520±10-30-D200/22-V5W-AP a turnkey laser system and is it IEC/FDA certified?
No. This product is an OEM fiber‑coupled semiconductor diode laser module intended solely for integration into other equipment or laser systems. It is not a turnkey or stand‑alone laser system and is not certified by the manufacturer as a finished laser product under IEC 60825‑1 or the FDA/CDRH regulations 21 CFR 1040.10 and 1040.11. The responsibility for implementing appropriate laser safety measures—such as housings, interlocks, emission indicators, key switches, emergency stops, labeling, and final certification—rests with the system integrator or OEM using the module in their product.
What safety precautions are required when using a 30 W, 520 nm fiber-coupled diode laser module?
At 30 W CW in the visible green, this module represents a very high‑risk laser source (Class 4 when integrated into a system). Direct or specular reflections can cause instant and permanent eye damage and can also present a skin and fire hazard. Users must wear appropriate laser safety eyewear rated for 520 nm with an optical density matching or exceeding the 30 W power level, and should operate the module only within an interlocked, beam‑enclosed setup. The red 650 nm aiming beam should be used for alignment at low risk, with the main 520 nm output disabled. The system integrator must add safety features such as beam shutters, key switches, emergency stop, warning indicators, and compliance labeling to meet IEC 60825‑1 and FDA/CDRH requirements in the final application.

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

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