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LMA-YDF-30/250

30/250 Ytterbium-Doped LMA Double Clad Fiber

Nufern's 30/250 Ytterbium-doped double clad fiber is specifically designed for short pulse amplification where fiber length is a critical design factor because of very high peak powers. The high absorption enables very short fiber amplifier lengths without sacrificing efficiency. Short pulse fiber amplifiers can be considered low-cost replacements for Nd:YAG lasers used in materials processing, LIDAR and range finding applications. Nufern also offers a PANDA-style polarization maintaining (PM) version of this fiber, and a version with a higher Yb dopant concentration.

Applications
  • Short pulse fiber amplifiers and lasers
  • Materials processing
  • LIDAR
  • Range finding
  • CW fiber amplifiers and lasers
Features & Benefits
  • LMA core design and short amplifier length — Useful for generating high peak powers
  • "Few" moded core design — Easy to maintain single mode LP01 beam through fiber & components

Optical Specifications

Operating Wavelength1060–1115 nm
Cladding Absorption2.0 ± 0.5 dB/m @ 915 nm
6.6 dB/m @ 975 nm (nominal)
Core Numerical Aperture0.06 ± 0.01
Cladding Numerical Aperture (nominal)0.46

Geometrical & Mechanical Specifications

Core Diameter30.0 ± 3.0 µm
Clad Diameter250.0 ± 12.0 µm
Coating Diameter400 ± 20 µm
Outer Cladding MaterialLow Index Polymer
Proof Test Level≥ 100 kpsi (0.7 GN/m2)

Note: Perfectly matched passive versions are available for many of our active fibers.
See our Component and Delivery Fibers cheat sheet. (PDF)

RoHS Compliant