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50W High Power Diode Lasers 940nm K940DA5RN For Fiber Laser Pumping

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This series of products build upon the foundation of multi-emitter coupling technology, high brightness fiber coupling and simplified packaging. With fiber core diameters as small as 105um for fiber coupling, BWT has advanced the laser brightness. In multi-single emitter diode laser, many improved optical designs have been patented. A key feature of these devices is low current which easy for current design. These compact packaging and commercially recognized formats allow easy integration into the existing products. Furthermore, some products can include integrated photodiode and thermistor, as well as thermoelectric cooler (TEC). The detachable fiber can be controlled via the fiber detector.

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Features:
# ? ?940,976 nm wavelength
# ?? 50W output power
# ? ?105μm fiber core diameter
# ? ?0.15/0.22N.A.?
# ? ?1030-1200nm feedback protection?

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Applications:
# ? ?Fiber laser pumping
# ? ?Medical use
# ? ?Material processing?

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Specifications(25℃) | Symbol | Unit | K940DA5RN-50.00W | K976DA5RN-50.00W |
Optical Data | Center Wavelength | λc | nm | 940 | 976 |
CW-Output Power | Po | W | 50 |
Tolerance of?λ | - | nm | ±3, ±10 |
Spectral Width (FWHM) | △λ | nm | <5 |
Temperature Drift of?λ | - | nm/℃ | ~0.3 |
Fiber Data(1) | Fiber Core Diameter | Wc | μm | 105 |
Numerical Aperture | N.A. | - | 0.22 | 0.22 |
Fiber Connector | - | - | SMA-905 |
Electrical Data | Operating Current | Iop | A | 12 | 12 |
Threshold Current | Ith | A | 0.5 | 0.5 |
Conversion Efficiency | η | % | 46 | 46 |
Slope Efficiency | ηD | W/A | 5.2 | 5.2 |
Operating Voltage | Vop | V | 10.8 |
Reverse Voltage | Vre | V | 15 |
Feedback
Isolation | Wavelength Range | λ | nm | 1030-1200 |
Isolation | - | dB | >30 |
Others | Operating Temperature | Top | ℃ | 10~30 |
Storage Temperature | Tst | ℃ | -20~+80 |
Expected Lifetime | MTTF | h | >100, 000 |
Dimensions (fiber and connector not included) | - | mm | 74.0 x 50.0 x 15.0 |
Lead Soldering Temperature | Tis | ℃ | 260(10 sec.) |
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?Upon request other fibers available
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