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976 nm 430 W Wavelength-Stabilized Fiber Coupled Laser Diode

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

Product datasheet

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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 ) SYMBOL UNIT K976BNZRN-430.0W
MINIMUM TYPICAL MAXIMUM
OPTICAL
DATA(1)		 CW Output Power Po W 430 — —
Center Wavelength λc nm 976 ± 1
Spectral Width (FWHM) Δλ nm — 0.7 1.0
Wavelength Shift / Temp Δλ/ΔT nm/°C — 0.02 —
Wavelength Shift / Current Δλ/ΔI nm/A — 0.03 —
ELECTRICAL
DATA		 Electrical-to-Optical Efficiency PE % — 48 —
Threshold Current Ith A — 1.3 —
Operating Current Iop A — 25.0 26.0
Operating Voltage Vop V — 36.0 43.0
Slope Efficiency η W/A — 18.0 —
FIBER
DATA		 Core Diameter Dcore μm — 200 —
Cladding Diameter Dclad μm — 220 —
Numeric Aperture NA — — 0.22 —
Fiber Length Lf m — 2 —
Fiber Loose Tubing Diameter — mm — 0.9 —
Minimum Bending Radius — mm 88 — —
FEEDBACK
ISOLATION		 Wavelength Range — nm 1020 ~ 1200
Isolation — dB — 30 —
OTHERS ESD Vesd V — — 500
Storage Temperature(2) Tst °C -20 — 70
Lead Soldering Temp Tls °C — — 260
Lead Soldering Time t sec — — 10
Operating Case Temp(3) Ttop °C 20 25 30
Relative Humidity RH % 15 — 75
Weight W g — 500 —
(1) Data measured under operation at nominal output power @ 25°C.
(2) A non-condensing environment is required for operation and storage.
(3) Operating temperature defined by the package case. Acceptable range is 20°C~30°C, but performance may vary.
(4) Wavelength-Stabilized: Percentage of power in band of 974.5nm to 977.5nm ≥90%.

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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