445 nm 50 W Fiber-Coupled Blue Laser Diode

WAVELENGTH

445 nm

POWER

50 W

FIBER CORE

105 µm

NA

0.22

Key features

• High-Brightness 445 nm Blue Output
• Dual-Submodule
• 0.22 Numerical Aperture
• High-Brightness 105 µm Fiber Core
• Integrated Visible Aiming Beam
• High-Power HP-SMA905 Termination
• Advanced Thermal Management

Applications

• Non-Ferrous Metal Welding
• Additive Manufacturing (3D Printing)
• Scientific Research
• Industrial Coating & Cladding
• EV Battery Production

Custom configurations & wavelengths available

Uncompromising performance

The 445 nm 50 W High-Brightness Fiber Coupled Blue Laser is a specialized visible light source engineered for applications where beam quality and absorption efficiency are paramount. Delivering a stable 50 W of continuous-wave output through a 105 µm fiber core, this module distinguishes itself with a low 0.14 Numerical Aperture (NA), providing the superior brightness and energy density required for high-resolution industrial and scientific tasks. Designed to overcome the reflectivity challenges of non-ferrous metals, the K445 series offers exceptional absorption in materials such as copper and gold. The module utilizes a high-reliability dual-submodule architecture (25 W x 2) to ensure consistent performance and thermal stability. With an integrated 635 nm visible aiming beam for surgical precision and a built-in thermistor for real-time monitoring, this source is the premier choice for Selective Laser Melting (SLM), micro-material processing, and advanced biophotonics research.

SPECIFICATIONS ( 20°C )SYMBOLUNITK445HR7FN-50.00WN1N-11315
MINIMUMTYPICALMAXIMUM
OPTICAL
DATA(1)
Total CW Output PowerPbol(4)W50——
Number of Submodulespcs——2—
Submodule CW Output PowerPoW—25—
Center Wavelengthλcnm445 ± 20
Spectral Width (FWHM)Δλnm—6—
Wavelength Shift / TempΔλ/ΔTnm/°C—0.1—
ELECTRICAL
DATA
Electrical-to-Optical EfficiencyPE%—30—
Operating CurrentIopA—2.53.5
Threshold CurrentIthA—0.35—
Operating Voltage (single module)VopV—3540
FIBER
DATA
Core DiameterDcoreμm—105—
Numeric ApertureNA——0.15—
Minimum Bending Radius—mm50——
Fiber TerminationHP-SMA905
MONITORThermistor (Resistance)RtK Ω10 ± 3% / 3450
OTHERSESDVesdV——500
Storage Temperature(2)Tst°C-20—70
Operating Temperature(3)Ttop°C15—30

Do you need a custom laser diode for your application?

We offer custom laser diodes according to your needs, either high-power or low-power versions, fiber-coupled or free-space, specific wavelengths, wavelength-stabilized options, and single or multi-emitter diodes. To discuss your custom laser diode needs, you can contact us by sending an email or using the contact form.

contact@ephotonics.com

+1 418 883 7125

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