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NKT Photonics A/S

Fibers & gain modules

Optical fibers are at the heart of everything we do at NKT Photonics. We utilize our unique PCF technology to embed as many of the functions we need directly in the fibers, making systems build with our fibers simpler, cheaper and more reliable.

Our Crystal Fibre portfolio of specialty fibers spans from nonlinear fibers optimized for octave spanning supercontinuum generation, over the World’s largest single mode ytterbium gain fibers for high power lasers and amplifiers, to advanced hollow core fibers guiding the light in air. Packaged in an aeroGAIN gain module, the high performance of our fibers are easily accessible for building picosecond or femtosecond ultrafast fiber lasers.

Our single-mode LMA fibers are also available as patch cords with standard termination in our aeroGUIDE product range. Moreover, we offer the CONNECT broadband fiber delivery system, enabling easy and robust single mode coupling for fiber delivery at any wavelength – with the industry’s highest coupling efficiency.

Ytterbium doped double clad fibers
Our ytterbium doped double clad fibers offers the largest single-mode cores in the world enabling amplification to unprecedented power levels while keeping mode quality and stability.

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aeroGAIN-ROD high power ytterbium rod fiber gain modules
aeroGAIN-ROD module is the ultimate in fiber amplification for pulsed lasers with a power handling previously only available in solid state configurations. With a 3300 µm2 mode field area and high pump absorption, the aeroGAIN-ROD module offers up to ten times the performance of our aeroGAIN-FLEX and -BASE models.

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aeroGAIN-BASE high power ytterbium fiber gain modules
The aeroGAIN-BASE family consists of high performance ytterbium fiber gain modules designed for industrial manufacturers of ultrafast pulsed fiber lasers. At the same time, it also serves as an easy entry into high power scientific setups.

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aeroGUIDE broadband single mode patch cords
The line of aeroGUIDE PCF patch cords includes some of our most popular fibers used for transport and delivery. These fibers offer performance beyond conventional fibers, with broadband single mode operation, large mode area for high power handling and low nonlinearities, superior beam quality, low loss, and polarization maintaining features. The fiber ends are sealed and connectorized, offering a hermetic and robust interface.

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Nonlinear photonic crystal fibers
Optimized for supercontinuum generation and nonlinear wavelength conversion, our nonlinear photonic crystal fibers offers a unique combination of tailored dispersion profile and a very high nonlinear coefficient.

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Large mode area photonic crystal fibers
The selection of Crystal Fibre Large Mode Area fibers covers a range of fibers for diffraction limited high power delivery. The very large mode area enables high power levels without nonlinear effects or material damage.

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Hollow core photonic crystal fibers
Hollow-core photonic bandgap fibers use a microstructured cladding region with air holes to guide light in a hollow core. The photonic bandgap guiding mechanism is fundamentally different from the traditional total internal reflection guiding principle. This new technology provides the basis for high power delivery without nonlinear effects or material damage.

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