Home  >  Wavelengths 900nm-1190nm  >  LUMENTUM Laser Diodes  >  RLS/L4-9894010-100M


940nm, 10W Laser Diode for Fiber Pumping
- 105µm Fiber-Coupled
- SMA Termination

  • JDSU Lumentum 10W pump laser top view
  • JDSU Lumentum 10W pump laser dimensions
  • JDSU Lumentum 10W pump laser controller

sku / item#: RLS/L4-9894010-100M
ships: Request a Quote for Current Ship Date

Key Features
  • Small Footprint L4 Fiber Coupled Package
  • 105 μm Core Fiber, 0.22 NA
  • SMA Fiber Connector
  • Multimode Output
  • Offered by Lumentum, Fulfilled by Laser Diode Source

Price and Delivery Quote

Technical Questions for this Product


Customers Also Considered:

Why do Scientists & Engineers Choose Laser Lab Source?

MODEL RLS/L4-9894010-100M
PRICE $485.00
Optical specifications (typical)
  • Optical Output Power: 10 Watts
  • Typical Mean Wavelength at 25 °C: 939nm
  • Spectral Width (FWHM): 3nm
  • Conversion efficiency: 48%
  • Wavelength tuning vs. temperature (∆λ / ∆T): 0.35 nm / °C
  • Wavelength tuning vs. output power (∆λ / ∆P): 1.0 nm / Watt
Electrical specifications (typical)
  • Typical Operation Current: 11.7 Amps
  • Maximum Operation Current: 14 Amps
  • Typical Threshold Current: 0.7 Amps
  • Maximum Operating Voltage: 2.2 Volts
Fiber Characteristics
  • Fiber core diameter: 105 μm
  • Fiber numerical aperture 0.22 NA
  • Fiber cladding: 125 μm
  • Fiber buffer: 250 μm
  • Fiber length: 1 meter
  • Fiber Optic Connector: SMA
  • Fiber laser pumping
  • Material processing
  • Graphic arts
  • Medical
  • Remote power generation
  • Pyrotechnic ignition

Product Overview:

915nm L4 Laser Diode Module from Lumentum

These high power model number L4-9894010-100M multimode pump laser diodes from Lumentum deliver power via 105 µm fiber that is terminated with an SMA connector. The output power is rated up to 10 watts (10W) and these multimode pumps offer high electrical-to-optical efficiency of 48%.

These are single emitters and the proprietary coupling processes deliver industry leading brightness from a very small form factor package.

Continuous Design Evolution Delivers A Highly Reliable Device

These L4-Series are a high-tech evolution of the very successful L2 and L3 devices, and offer a high output power of up to 10 Watts from a small footprint fiber coupled package. They ship with an SMA connector and a 1 meter fiber pigtail. A key to their long life and long term reliability is a simplified thermal management architecture which is achieved by distributing the diodes (heat sources). This facilitates the use of water or air cooling of the package. These devices were designed to be cost effective pumps for the multi-mode pump market.

Key applications include fiber laser pumping, materials processing and graphic arts.

Heat Sinking for Lumentum L4 Packaged High Power Pumps
The L4-9894010-100M package was designed to allow the use of either air cooling or water cooled thermal management. As with all laser diodes, device degradation accelerates with increased temperature. The case temperature should be actively controlled and kept in a safe operating temperature window. A proper heat sink for the diode laser on a thermal radiator will greatly enhance the life of the laser.

Laser Lab Source offers a pre-configured heat sink which has been optimized for the L4 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 10W laser is also available. Please contact us for more information on controlling and cooling high power Lumentum laser diodes.

Why do Scientists & Engineers Choose Laser Lab Source?

  • Get DIRECT, Fast Tech-Support from the Product Engineer, No Sales Person in the Middle

  • Get the Lowest Price, Factory Direct, No Mark-Up's, Suppliers Post their Own Price

  • Get a 30 Day Evaluation Period with No Risk Return on Most Products, Check Availability