976 nm 430 W Wavelength-Stabilized Fiber Coupled Laser Diode

WAVELENGTH

976 nm

POWER

430 W

FIBER CORE

200 µm

NA

0.22

Key features

• Ultra-High 430 W Output
• VBG Wavelength Locking (976 ± 1 nm)
• Integrated 30 dB Feedback Isolation
• 1020nm~1200nm feedback protection
• High-Brightness Output
• Rugged Industrial Package

 

 

Applications

• Fiber laser pumping
• Solid-state laser pumping
• Industrial Material Processing
• Scientific research
• Custom OEM Integration

Custom configurations & wavelengths available

Uncompromising performance

The 976 nm 430 W Wavelength-Stabilized Fiber Coupled Diode Laser is an ultra-high-brightness pump source engineered for the most rigorous industrial fiber laser and scientific applications. Leveraging integrated Volume Bragg Grating (VBG) technology, this module achieves an exceptionally stable 976 nm ± 1 nm center wavelength, with over 90% of the total output power concentrated within a 3 nm spectral band.Delivering a 430 W continuous-wave output through a high-precision 200 µm fiber core, the K976BNZRN series is optimized for maximum energy density and system efficiency. Designed for total reliability, it includes integrated 30 dB feedback isolation to shield the diode from back-reflections during high-power materials processing. With an industry-leading 48% electrical-to-optical conversion rate, robust thermal management, and an industrial FC-Ferrule termination, this module is the ideal engine for kilowatt-class fiber laser systems, thin-metal welding, and advanced additive manufacturing.

SPECIFICATIONS ( 25°C )SYMBOLUNITK976BNZRN-430.0W
MINIMUMTYPICALMAXIMUM
OPTICAL
DATA(1)
CW Output PowerPoW430
Center Wavelengthλcnm976 ± 1
Spectral Width (FWHM)Δλnm0.71.0
Wavelength Shift / TempΔλ/ΔTnm/°C0.02
Wavelength Shift / CurrentΔλ/ΔInm/A0.03
ELECTRICAL
DATA
Electrical-to-Optical EfficiencyPE%48
Threshold CurrentIthA1.3
Operating CurrentIopA25.026.0
Operating VoltageVopV36.043.0
Slope EfficiencyηW/A18.0
FIBER
DATA
Core DiameterDcoreμm200
Cladding DiameterDcladμm220
Numeric ApertureNA0.22
Fiber LengthLfm2
Fiber Loose Tubing Diametermm0.9
Minimum Bending Radiusmm88
FEEDBACK
ISOLATION
Wavelength Rangenm1020 ~ 1200
IsolationdB30
OTHERSESDVesdV500
Storage Temperature(2)Tst°C-2070
Lead Soldering TempTls°C260
Lead Soldering Timetsec10
Operating Case Temp(3)Ttop°C202530
Relative HumidityRH%1575
WeightWg500

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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