Smart Product Number: PLMA-YDF-20/400-M
20/400 Matched PLMA Double Clad Fiber
Nufern's matched series of Large Mode Area (LMA) double clad fibers are ideal for high power monolithic fiber lasers and amplifiers. Featuring a matching set of LMA fibers, this series of fibers ensure splice compatibility across the entire chain of 20/400 fiber components, such as fiber Bragg gratings and couplers, required to make monolithic fiber lasers. This matched fiber series is based on a 20 micron diameter core and 400 micron diameter clad size with a low NA (0.065) core and consists of Yb-doped fiber, photosensitive fiber and passive beam delivery fibers all made to highest tolerances in the industry. All fibers utilize the latest glass composition and NuCOATFA coating technology to ensure high slope efficiency, extended operating life and excellent beam quality at the high power levels demanded by today’s industrial fiber laser applications. These precision matched LMA fiber sets are available in non-PM (LMA) and PM (PLMA) versions.
Optical Specifications
Operating Wavelength
1060 – 1115 nm
Core NA
0.065 ± 0.005
First Cladding NA (5%) ≥ 0.46
Core Attenuation
≤ 50.0 dB/km @ 1300 nm
≤ 25.0 dB/km @ 1200 nmCladding Attenuation
≤ 15.0 dB/km @ 1095 nm
Cladding Absorption
1.5 dB/m at 975 nm
0.5 ± 0.1 dB/m at 915 nmBirefringence
nominal 4 × 10-4
Geometrical & Mechanical Specifications
Cladding Diameter
405.0 ± 10.0 µm
Core Diameter
20.0 ± 1.5 µm
Coating Diameter
550.0 ± 15.0 µm
Core/Clad Offset
≤ 2.00 μm
Prooftest Level
≥ 100 kpsi (0.7 GN/m²)
Comments
Coating Requirements: Low Index Polymer.
Features & Benefits
Matched fiber series – ensure splice compatibility across the 20/400 matched series of fibers
NuCOATFA fluoroacrylate coating — Greater fiber durability in extreme environmental operating & storage conditions
State of the art Yb-doped glass — Useful for generating high CW powers
Optimized PLMA core design — Easy to maintain single mode LP01 beam through fiber & components at high power
PANDA-style stress structure for increased birefringence — Superior optical performance and uniformity
All fiber proof tested to > 100 kpsi — Critical for ensuring long term reliability when coiling
Typical Applications
Monolithic high power lasers & amplifiers
LMA fiber couplers, pump combiners & FBG
High power pump & signal pigtails
Military, industrial and medical
商品属性 [波长] 1060 - 1115 nm [掺杂类型] Yb [芯径大小] 20 µm [首包层直径] 405 µm [数值孔径] 0.065 [光学包层] Double