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Part #:
PLMA-YDF-30/250-HI

High Absorption 30/250 Ytterbium-Doped LMA Double Clad Fiber

Nufern's polarization maintaining 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 which will allow the fiber to operate at higher peak pulse powers without exceeding non-linear thresholds or 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. This high absorption 30/250 Large Mode Area fiber is available in both a standard and a PANDA-style polarization maintaining (PM) format.

Applications
  • Short pulse fiber amplifiers and lasers
  • Materials processing
  • LIDAR
  • Range finding
  • CW fiber amplifiers and lasers
Features & Benefits
  • LM 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
  • PANDA-style stress structure for increased birefringence — Superior optical performance and uniformity

Optical Specifications

Operating Wavelength (nominal)1060–1115 nm
Cladding Absorption2.7 ± 0.3 dB/m @ 915 nm
8.5 dB/m @ 975 nm (nominal)
Core Numerical Aperture0.06 ± 0.01
Cladding Numerical Aperture (5%)≥ 0.46
Birefringence (nominal)≥ 1.5 x 10-4

Geometrical & Mechanical Specifications

Core Diameter30.0 ± 3.0 µm
Clad Diameter250.0 ± 10.0 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

Absorption for LMA-YDF-30/250-HI