LIEKKI? Passive Large Mode Area Fibers

Product catalog summary

Overview
LIEKKI™ Passive Large Mode Area Fibers are designed to complement commercially available large mode area active fibers, such as the LIEKKI™ Yb1200 product line. These passive fibers are engineered to match the core diameters and numerical apertures of their active counterparts, ensuring excellent beam quality in fiber lasers or amplifiers.

Features

Compatibility with industry-standard active fiber geometries (125, 250, 400 μm).
Glass cladding diameter designed to fit octagonal active fibers.
Low signal and pump coupling losses from passive to active fiber.
Round cladding for easy cleaving, splicing, and handling.
Single cladding fibers feature dual coated acrylate coating.
Double cladding fibers feature low-index fluoroacrylate coating with >0.46 NA.

Applications

Pigtails for fiber lasers and amplifiers.
All-fiber subassemblies.
High brightness power delivery.
Fiber-based components for fiber lasers (e.g., pump combiners).

Typical Device Performance
The document provides detailed specifications for various passive fiber models, including core diameter, cladding diameter, coating, numerical aperture (NA), cladding NA, birefringence, and proof test values. These specifications are crucial for matching with specific active fibers in the Yb1200 series.

Key Specifications

Core diameters range from 6 to 30 μm.
Cladding diameters range from 125 to 400 μm.
Coating diameters range from 245 to 580 μm.
Numerical apertures (NA) vary, with cladding NA typically at 0.46.
Birefringence values are specified for polarization-maintaining (PM) fibers.

Conclusion
LIEKKI™ Passive Large Mode Area Fibers are versatile and designed for high compatibility with active fibers, offering low loss and high performance in fiber laser applications.

Catalog excerpts

LIEKKI? Passive Large Mode Area Fibers-1

LIEKKI™ Passive Large Mode Area Fibers LIEKKITM passive fibers are especially designed and manufactured to match with commercially available large mode area active fibers such as LIEKKITM Yb1200 product line LMA fibers. The passive fibers are matched to the core diameters and numerical apertures of the active counterparts so that excellent beam quality is maintained throughout the fiber laser or amplifier. LIEKKITM passive fibers are available in single cladding, double cladding (DC), single cladding polarization maintaining (PM) and double cladding polarization maintaining configuration. Many of the fibers are also available as a Photosensitive variant for Fiber Bragg Grating manufacturing. Please contact your sales representative for the availability. Matching with industry standard active fiber geometries 125, 250, 400 μm Glass cladding diameter is designed to “fit-in” octagonal active fibers Low signal and pump coupling losses from passive to active fiber Round cladding for easy cleaving, splicing and handling Single cladding fibers feature a dual coated acrylate coating Double cladding fibers feature a low-index fluoroacrylate coating with >0.46 NA Pigtails for fiber lasers and amplifiers All-fiber subassemblies High brightness power delivery Fiber based components for fiber lasers (e.g. pump combiners) Proven Performance [email protected] www.nlight.net

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LIEKKI? Passive Large Mode Area Fibers-2

Proof Test Proof Test Matching Active Fiber Matching Active Fiber Proven Performance [email protected] www.nlight.net

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LIEKKI? Passive Large Mode Area Fibers-3

LIEKKI™ Passive Large Mode Area Fibers Passive-30/250 Passive-30/250-PM Passive-30/250DC Passive-30/250DC-PM * Core diameter specification refers to the mode field diameter. Proven Performance [email protected] www.nlight.net

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LIEKKI? Passive Large Mode Area Fibers

LIEKKI? Passive Large Mode Area Fibers

Catalog excerpts

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