PDF-5/125 Phosphorus-doped Optical Fibers

Product number: SW11012

Manufacturer: Greitlex Photonics

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Product information "PDF-5/125 Phosphorus-doped Optical Fibers"

Cut off Wavelength 900 nm; Numerical Aperture 0.17, 0.18; Core Dia. 5 µm; Cladding Dia. 125 µm; Raman Gain >5.0, >5.8 dB/km*W

Greitlex Photonics’ PDF-5/125 series of Phosphorus-doped single mode (SM) optical fibers is specially designed for highly efficient Raman lasers and amplifiers operating in the 1100 to 1600 nm spectral range.

The main advantage of phosphorus-doped fiber is a three times higher value of the Raman shift as compared to germanium-doped fibers. This feature allows to strongly simplify the Raman fiber laser and amplifier design. For example, to construct a high-power laser @ 1480 nm required for pumping Er-doped fibers, only two cascades of Raman wavelength transformation are necessary, whereas six cascades are necessary in the case of Ge-doped fibers.

Greitlex Photonics’ PDF-5/125PM series of Phosphorus-doped polarization maintaining (PM) optical fibers are specially designed with the ability to maintain polarization. They replace similar products from the former FORC Photonics.

Key Features:

Phosphorus-doped Fibers
Core Diameter: 5 µm
Cladding Diameter: 125 µm
Cut off Wavelength: 900 nm
Core Numerical Aperture: 0.17, 0.18 (PDF-5/125PM)
Raman Gain: >5.0, >5.8 (PDF-5/125-P) dB/km*W
Optical Loss: <1 to <20 dB/km

Applications: Highly Efficient Raman Lasers and Amplifiers

Information on the manufacturer (information obligations under the GPSR Product Safety Regulation)

Greitlex Photonics

Danila Lekica Spanca 1/2

11070 Novi Beograd, Serbia

sales@greitlex-photonics.com

Manufacturer "Greitlex Photonics"

Greitlex Photonics, based in Novi Beograd, Serbia, focuses on development and production of specialized fiber components, From high peak power modules, components for single frequency lasers, components for amplifiers through to metal-coated fibers and fiber bragg gratings (FBG) - components from Greitlex help customers to significantly improve their products.

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SBS-DC SBS-suppressed Optical Fibers

Numerical Aperture 0.09; Core Dia. 20 µm; Cladding Dia. 127 µm; Gray Loss <20 dB/km; Polarization Extinction Ratio >20 dBGreitlex Photonics’ SBS-DC series of SBS-suppressed optical fibers feature a suppressed stimulated Brillouin scattering gain. Stimulated Brillouin scattering (SBS) is the major factor limiting maximal power of narrow-band fiber lasers (less than 100 MHz linewidth). It is especially crucial in applications which require small mode field diameter (MFD), i.e. Raman amplifiers. Suppression of SBS gain, while maintaining MFD (and Raman gain) becomes a very important task in such fibers. Another promising application of single-frequency lasers is LIDAR (Light Detection And Ranging). In the case of all-fiber systems, it is the passive fibers at the amplifier output (pigtails of isolators, circulators, collimators) that limit the maximum achievable peak power. Thus, development of large mode area (LMA) passive fibers with increased SBS threshold (as compared to standard LMA fibers) is more and more critical for those applications. To suppress SBS gain for a fixed MFD, Greitlex Photonics uses a specially designed multi-layer, multi-components doped core. It allows to suppress SBS gain by 3 to 5 dB relative to standard, uniformly doped Ge-doped passive fibers with the same MFD. The developed method allows Greitlex Photonics to design custom dopants distribution over the core to suppress SBS by 3 to 5 dB for most of the actual optical refractive index profiles (any core numerical aperture and diameter). The SBS-DC-20/125-1550PM polarization maintaining (PM) fiber has been specially designed to be used in pigtails of output components (isolators, collimators, pump-and-signal combiners etc.) of high peak-power single-frequency lasers operated near 1550 nm. The fiber is intended for utilization in systems with the ability to maintain polarization. Fibers with suppressed SBS-gain for a custom designed operating wavelength, core numerical aperture (NA) and diameter are available on request. Please contact AMS Technologies to discuss your customized SBS-suppressed optical fiber solution. Key Features: Suppressed Stimulated Brillouin Scattering (SBS) Gain Core Diameter: 20 µm Cladding Diameter: 127 µm Core Numerical Aperture: 0.09 Gray Loss: <20 dB/km Polarization Extinction Ratio (After 2 m): >20 dB Applications: Narrow-band Fiber Lasers; Raman Amplifiers; Pigtails of Output Components (Isolators, Collimators, Pump-and-signal Combiners etc.) of High Peak-power Single-frequency Lasers

Product number: SW11016

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