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915nm Laser Diode, 200W High Power Fiber-Coupled Pump Laser Module
- 135µm Multimode Fiber
- 1060nm Feedback Protection

  • 915nm fiber-coupled pump laser module
  • 915nm laser diode pump module high power

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sku / item#: 22136721
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Key Features
  • 915nm Center Wavelength
  • Up to 200 Watts Output Power
  • 135 μm Core Fiber, NA = 0.22, Bare-Fiber Termination
  • High-Reliability, Robust Package

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MODEL 22136721
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Optical Specifications
  • Center Wavelength: 915 nm
  • Optical Output Power: 200 Watts
  • Light within 0.15 NA: 95%
  • Wavelength range (98% of power within band): 910 nm ~ 930 nm
  • Wavelength Tuning vs. Temperature: 0.3 nm/°C
  • Electro-Optical Conversion Efficiency: 52%
  • Back Reflection Isolation: > 30 dB (1060 nm - 1100 nm)
Electrical Specifications
  • Maximum Operation Current: 18.0 Amps
  • Maximum Operating Voltage: 25.0 Volts
  • Electrical Contacts are Isolated
Fiber Characteristics
  • Fiber core diameter: 135 μm
  • Fiber numerical aperture 0.22 NA
  • Fiber cladding: 155 μm
  • Fiber buffer: 320 μm
  • Fiber Loose Tubing: 0.75 - 1.05 mm dia, 0.7 - 0.9 m long
  • Fiber length: 1.2 - 2.0 meter
  • Min Fiber Bend Radius: 35 mm
  • Fiber Optic Connector: Bare-Fiber
  • Fiber laser pumping
  • Material processing

Product Overview:

915nm ST2 Laser Diode Module from Lumentum

These 915nm multimode, multi-emitter pump laser diode modules from Lumentum are offered in a fiber coupled, high reliability ST2 package. It uses a new generation of high-power proprietary chip optimized for reliability at high power. The 200 W laser also supports the “build-your-own” kilowatt (kW) laser market.

Continuous Design Evolution Delivers A Highly Reliable Device

The ST2-Series fiber-coupled laser diodes leverage the technology applied in the L4 and ST laser module packages, and include 1060nm feedback protection, . The ST2 devices are cost effective laser sources for the high-power multi-mode pump market. Key applications include fiber laser pumping, materials processing, and graphic arts.

Heat Management for Lumentum ST-Packaged High Power Pumps
The diode operates as distributed heat sources, allowing air- or water-cooled architectures with predictable high reliability. To avoid device degradation due to run-away heat build-up, the case temperature must be actively controlled and kept in a safe operating temperature window. A proper heat sink for the laser package will greatly enhance the life of the laser, and allow for more stable operation in every-day conditions.

Laser Lab Source offers a pre-configured heat sink and temperature controller which has been optimized for the ST2 package. It comes pre-drilled with the correct mounting hole placement and has a TEC based cooling plate with a small fan to remove the waste heat. In addition to the mount, the precision low-noise current source and TEC controller unit which is compatible with the 200W laser is also available.

Please contact us for more information on controlling and cooling high power Lumentum laser diodes.

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