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Description

The 976nm Wavelength-stabilized Diode Laser offers a cutting-edge solution for high-performance fiber laser pumping applications. Designed by PhotonTec Berlin GmbH, this laser diode module is engineered to deliver exceptional power and precision. With a maximum continuous wave (CW) power output of 200W, this diode laser ensures reliable and consistent performance, making it an ideal choice for demanding industrial applications.

One of the standout features of this laser diode is its narrow linewidth, which ensures precise wavelength stability. This characteristic is crucial for maintaining high efficiency and performance in fiber laser systems. Additionally, the module includes feedback protection within the 1030-1100nm range, offering robust safeguarding against potential disruptions that could affect the laser's operation.

This module is equipped with a fiber pigtail featuring a 200µm core diameter and a 220µm cladding diameter, ensuring optimal light transmission and minimal losses.Its power conversion efficiency ranges from 45% to 50%, highlighting its capability to deliver high output with minimal energy wastage. The module's design also emphasizes safety and longevity, requiring ESD precautions and careful handling to ensure extended operational life.

976nm 200W Wavelength Stabilized Diode Laser

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Specifications

Laser Type: Continuous Wave (CW)
Fiber Type: Multi-Mode
Wavelength: 976 nm
Output Power: 200000 mW
Fiber Core Diamater: 200 um
Fiber Cladding Diameter: 220 um
Output Power (exit Fiber): 200 W
Spectral Width (FWHM): 1.0 nm
Feedback Protection: 1030-1100nm, 40 dB
Fiber Core Diameter: 200 µm
Fiber Cladding Diameter: 220 µm
Numerical Aperture: 0.22
Fiber Length: 2 m
Threshold Current: 1.0 A
Operating Current: 16.0 A
Operating Voltage: 28.6 V
Slope Efficiency: 15.0 W/A
Power Conversion Efficiency: 50 %
Operating Temperature: 20 - 25°C (depending on wavelength locking range)
Operating Humidity: 75 %
Storage Temperature: -20 to 80 °C
MTTF (100% --> 80% Power): >10 000 hours

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Features

  • High Output Power Blue Diode Laser – Up to 200 W optical power delivered at the fiber exit, ideal for demanding industrial and scientific applications that require high brightness blue radiation.
  • 450 nm Center Wavelength (Blue) – Centroid wavelength of 450 nm (440–460 nm range) with a 6 nm FWHM spectral width, optimized for applications such as materials processing, laser pumping, fluorescence excitation, and illumination.
  • Efficient Fiber-Coupled Design – Integrated high-power diode stack (4 submodules) coupled into a 200 µm core multimode fiber with NA 0.22, ensuring easy beam delivery, flexible routing, and straightforward integration into existing optical systems.
  • Stable Beam Quality – Beam parameter product (BPP) of 18–20 mm·mrad, providing a good compromise between high power and focusability for applications like laser soldering, welding of copper and other reflective materials, surface treatment, and additive manufacturing.
  • Standard Fiber Interface – Equipped with an industry-standard SMA905 fiber connector, compatible with a wide range of commercially available collimation optics, beam delivery heads, and process fiber accessories.
  • Flexible Fiber Length – Available fiber pigtail lengths from 1 m up to 5 m, allowing flexible system layout and easy integration into compact or distributed setups.
  • High Electrical-to-Optical Efficiency – Typical power conversion efficiency of 24.8%, reducing electrical power consumption and cooling requirements compared to lower-efficiency sources.
  • Linear Power Scaling with Current – Typical slope efficiency of 18.9 W/A, with operating current around 2.8–3.0 A per diode submodule and operating voltage ~54.5–55.5 V, supporting stable, predictable power control.
  • Integrated Red Pilot Beam – Built-in 650 ± 5 nm red pilot laser for convenient alignment and positioning of the invisible/high‑intensity blue processing beam, enhancing safety and ease of setup.
  • Integrated Thermistor for Temperature Monitoring – 10 kΩ @ 25 °C thermistor included for precise temperature feedback, enabling closed-loop thermal management and long-term operational stability.
  • Optimized for Water-Cooled Operation – Designed for operation with 20 ± 2 °C cooling water, allowing stable output power and wavelength, while supporting continuous-wave (CW) high-power operation in typical industrial environments.
  • Industrial-Grade Reliability – Suitable for OEM integration into industrial systems operating in < 75% humidity, with storage conditions from -20 °C to +80 °C and up to 90% storage humidity, matching the robustness of similar high‑power blue diode modules on the market.
  • OEM Module for System Integration – Delivered as an OEM industrial laser module; intended to be built into complete laser systems. The integrator has full freedom to design the housing, safety features, and user interface while meeting IEC/CDRH laser safety standards.
  • Compact Multi‑Diode Architecture – Comprises 4 diode submodules combined into a single high‑power fiber output, enabling a compact footprint with scalable power compared to bulky legacy solid‑state or gas lasers.
  • Standardized Electrical Pinout – Clearly defined pin assignment for each diode anode/cathode, pilot laser, thermistor, and photodiode, simplifying driver design and ensuring compatibility with high‑quality laser diode power supplies and control electronics.
  • Suitable for a Wide Range of Applications – Well matched to industrial blue‑laser applications including copper and gold welding / brazing, electronics manufacturing, plastronics, selective laser sintering of polymers, 3D printing, and scientific illumination / spectroscopy, as seen for similar 450 nm fiber‑coupled laser sources in the market.
  • Consistent Power Stability – Engineered for high power stability at 20 °C cooling water, comparable to leading blue diode fiber‑coupled modules, ensuring repeatable process quality and reduced need for recalibration.

Applications

  • Industrial Blue Laser Pumping – Fiber-coupled 450 nm source for pumping frequency-converted and solid-state lasers in industrial systems, benefiting from the 200 W output power and 0.22 NA fiber delivery.
  • High-Power Materials Processing – Suitable for plastics welding, soldering, cutting, and selective material removal of metals and non-metals where blue wavelengths offer higher absorption than infrared, improving process efficiency and reducing heat-affected zones.
  • Precision Micro-Machining – Used for fine structuring, drilling, and trimming of thin metals, copper, aluminum, PCBs, semiconductors, and transparent substrates that absorb efficiently at 450 nm, enabling tighter features and minimal thermal damage.
  • Copper and Highly Reflective Metal Processing – 450 nm radiation delivers better absorption in copper, gold, and other reflective metals than 1 µm IR lasers, making it ideal for micro‑joining, thin‑foil cutting, and surface texturing of electrical contacts and busbars.
  • Electronics Manufacturing & PCB Processing – Applied in precision cutting, depaneling, drilling of vias, and patterning on printed circuit boards and flexible circuits, where short wavelength and good beam quality (BPP ~20 mm·mrad) support accurate focusing.
  • Additive Manufacturing (AM) & 3D Printing – Acts as a blue pump or direct source for polymer and metal powder fusion in specialized AM systems, improving absorption in copper alloys and certain engineering plastics for higher build quality and throughput.
  • Laser Soldering & Brazing – Enables localized heating for soldering of electronic components and fine interconnects, especially on copper-rich substrates, profiting from high power density delivered via a 200 µm SMA905 fiber.
  • Laser Cladding & Surface Treatment – Integration into cladding heads and surface modification tools for thin-layer deposition, surface hardening, and functional coatings on small or reflective parts that demand high absorption at shorter wavelengths.
  • Photopolymer Curing & Resin Processing – High-intensity blue output for rapid curing of specially formulated photopolymers, inks, and coatings in industrial printing, stereolithography (SLA), and dental or jewelry manufacturing workflows.
  • Laser Annealing & Heat Treatment – Localized thermal processing of semiconductor wafers, thin films, and metal traces where controlled blue-light absorption provides precise temperature control and shallow thermal penetration.
  • Medical Device Manufacturing – Integration into OEM workstations for welding and cutting of stainless steel, nitinol, titanium and polymer components used in catheters, stents, surgical tools, and implants, where fiber delivery enhances process flexibility.
  • End Pumping of Solid‑State and Fiber Lasers – Used as a pump diode module for blue‑absorbing solid‑state gain media and specialty fibers, taking advantage of the 450 nm centroid wavelength, narrow ~6 nm FWHM spectrum, and high electrical‑to‑optical efficiency.
  • Scientific Research & Laboratory Illumination – High-brightness blue source for nonlinear optics, spectroscopy, fluorescence excitation, and pump–probe experiments that require stable power at ~450 nm with good beam quality and fiber coupling.
  • Lithography and Direct Laser Writing – Applied in maskless lithography, direct writing on photoresists, and micro‑patterning tasks where the short wavelength enables smaller feature sizes compared to near‑IR sources.
  • Display & Projection Light Source (OEM) – Acts as a high‑power blue channel for laser projection, light engines, and high‑luminance illumination modules that demand fiber‑coupled blue light at around 450 nm.
  • Holography & Interferometry – Provides intense blue illumination for digital and optical holography, interferometric measurements, and optical metrology systems that require stable, fiber-delivered power and compatibility with OEM integration.
  • Machine Vision & High‑Intensity Illumination – Used as a powerful structured‑light or bright‑field source in machine vision, inspection, and sorting systems, allowing delivery of high radiant flux to remote optics via SMA905 fiber.
  • Laser-Induced Fluorescence (LIF) & Spectroscopy – Excitation source for fluorescence and scattering experiments, environmental sensing, and chemical analysis, particularly for dyes and fluorophores with absorption bands around 440–460 nm.

Frequently Asked Questions

What is the PhotonTec Berlin M450±10-200-F200/22-V5W-AP blue fiber‑coupled diode laser, and what are its key specifications?
The M450±10-200-F200/22-V5W-AP is a high‑power, 450 nm class blue fiber‑coupled diode laser module designed as an OEM industrial source. It delivers a typical 200 W of optical output power at the exit of a 200 µm core fiber with NA 0.22 (SMA905 connector). The centroid wavelength is 450 nm (±10 nm) with a spectral width of about 6 nm (FWHM). The module consists of 4 diode submodules and offers a beam parameter product (BPP) of 18–20 mm·mrad, making it suitable for fiber delivery and integration into industrial and scientific systems rather than free‑space, diffraction‑limited applications.
What are the electrical operating conditions and efficiency of this 450 nm 200 W fiber‑coupled laser?
Each diode submodule has a threshold current of about 0.35 A and an operating current typically around 2.8–3.0 A at approximately 54.5–55.5 V. The typical slope efficiency is 18.9 W/A, with a power conversion efficiency of about 24.8% (measured with 20 °C cooling water). As with comparable high‑power blue diode laser stacks on the market, a low‑ripple, well‑filtered current driver is required, and the module must be operated within its specified current and voltage limits to maintain lifetime and power stability.
How is the fiber output configured (core size, NA, length, and connector)?
The laser output is delivered through a multimode fiber pigtail with a core diameter of 196–204 µm (nominal 200 µm) and numerical aperture (NA) of 0.20–0.24 (nominal 0.22). Standard fiber lengths from 1 m to 5 m are available, terminated with an industry‑standard SMA905 connector. This configuration is typical for high‑power industrial blue diode lasers, providing robust coupling to beam delivery systems such as collimators, focusing heads, or scanners used in materials processing and illumination.
What cooling and environmental conditions are required for reliable operation?
The module is specified for operation with cooling water maintained at 20 ± 2 °C, which is critical to achieving the stated output power, wavelength stability, and power stability. Operating humidity should be below 75%. Storage temperature can range from −20 °C to +80 °C, with storage humidity up to 90%. As with similar high‑power diode laser modules, adequate thermal management (chillers, proper flow rate, and clean cooling water) and environmental control are essential to prevent overheating, condensation, or corrosion and to ensure long service life.
Does this 200 W 450 nm OEM laser comply with IEC / FDA (CDRH) laser safety regulations?
No. This product is explicitly supplied as an OEM industrial laser for integration into other equipment and, by itself, does not comply with IEC 60825 or U.S. FDA CDRH laser safety regulations. The responsibility for compliance lies with the system integrator or end‑equipment manufacturer, who must implement appropriate safety measures (interlocks, key switches, emission indicators, labeling, and enclosures) and obtain the required certifications for the complete laser system. This compliance model is similar to other high‑power fiber‑coupled diode stacks offered on FindLight and by major laser manufacturers.
What built‑in monitoring and auxiliary features does the module provide (thermistor, pilot laser, photodiode)?
The module includes a 10 kΩ thermistor (10 kΩ at 25 °C) for temperature monitoring and control of the laser baseplate or cooling block. It also integrates a red pilot diode at 650 ± 5 nm that can be driven at +5 VDC to provide a low‑power visible aiming beam through the same fiber, simplifying system alignment when the high‑power blue output is disabled. Additionally, pins are provided for a photodiode (PD anode/cathode) to allow power monitoring and, in many driver systems, closed‑loop power stabilization. Such integrated thermistor, pilot beam, and PD functions are standard in comparable high‑power OEM diode modules to support safe and stable integration.
What are typical applications for a 200 W, 450 nm, 200 µm fiber‑coupled diode laser like this?
High‑power blue (around 450 nm) fiber‑coupled diode lasers with 200 W output and 200 µm fiber delivery are widely used in industrial and scientific applications where strong absorption in metals, plastics, and certain composites is beneficial. Typical uses include materials processing (welding, soldering, brazing, surface treatment of copper and highly reflective metals), additive manufacturing, laser pumping of phosphors and specialty materials, high‑brightness illumination, and integration into multi‑wavelength or multi‑kilowatt laser systems. The OEM construction and fiber delivery make it well suited for system builders needing a compact, high‑brightness blue source.

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

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