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915nm Laser Diode, 140W Fiber-Coupled Module for Fiber Pumping
- 106.5µm Multimode Fiber
- Bare-Fiber Termination

  • 915nm 140W Fiber Coupled Laser Diode Module
  • 915nm Laser Diode Dimensions 140W Module

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sku / item#: RLS/22015032
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Key Features
  • 915nm Center Wavelength (also available at 940nm)
  • Up to 140W Output Power
  • 106.5 μm Core Fiber, NA = 0.22, Bare-Fiber Termination
  • High-Reliability, Robust Package

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MODEL RLS/22015032
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Optical Specifications
  • Center Wavelength: 915 nm
  • Optical Output Power: 140 Watts
  • Typical Mean Wavelength at 25 °C: 918 nm
  • Light within 0.15 NA: 95%
  • Wavelength Range at Iop: 905 nm ~ 928 nm
  • Wavelength Tuning vs. Temperature: 0.3 nm/°C
  • Electro-Optical Conversion Efficiency: 48%
  • Back Reflection Isolation: > 30 dB (1060 nm - 1100 nm)
Electrical Specifications
  • Maximum Operation Current: 13.0 Amps
  • Maximum Operating Voltage: 25.0 Volts
  • Electrical Contacts are Isolated
Fiber Characteristics
  • Fiber core diameter: 106.5 μm
  • Fiber numerical aperture 0.22 NA
  • Fiber cladding: 125 μm
  • Fiber buffer: 245 μm
  • Fiber length: 1.2 - 2.0 meter
  • Min Fiber Bend Radius: 30 mm
  • Fiber Optic Connector: Bare-Fiber
  • Fiber laser pumping
  • Material processing
  • Graphic arts

Product Overview:

915nm ST Laser Diode Module from Lumentum

These 915nm multimode, multi-emitter pump laser diode modules from Lumentum are offered in a fiber coupled, high reliability ST package.

Continuous Design Evolution Delivers A Highly Reliable Device

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

Heat Management for Lumentum ST-Packaged High Power Pumps
To avoid device degradation due to run-away heat build-up, the case temperature should 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 ST 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 current source and TEC controller unit which is compatible with the 140W laser is also available.

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

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