Doped Fibers

Cut off Wavelength 980, 1350 nm; Numerical Aperture 0.09 to 0.27; Core Dia. 3.5 to 14 µm; Cladding Dia. 125 µm; Background Loss <10 to <30 dB/kmGreitlex Photonics’ series of Bismuth-doped single mode (SM) optical fibers feature core diameters of 5.6 and 6.5 µm. The Bismuth-Phosphorus co-doped fiber BPDF-SM-6/125-1320 is specially designed for amplifiers, lasers or superfluorescent fiber sources operating at 1270 to 1370 nm, while the Bismuth-Germanium co-doped fiber BGDF-SM-7/125-1430 series is specially designed for amplifiers, lasers or superfluorescent fiber sources operating at 1370 to 1490nm. It replaces similar products from former FORC Photonics. Key Features: Bismuth-doped Fibers Phosphorus or Germanium Co-doped Core Diameter: 5.6, 6.5 µm Core Absorption: 0.3, 0.5 dB/m Cladding Diameter: 125 µm Cut off Wavelength: 1050, 1100 nm Core Numerical Aperture: 0.14 Typ. Peak Gain: >0.2 dB/m Applications: Amplifiers; Lasers; Superfluorescent Fiber Sources

Cut off Wavelength ≤980, ≤1300, ≤1400 nm; Numerical Aperture 0.22, 0.23; Mode Field Diameter 3.5 to 5.6 µm; Attenuation ≤15.0; Cladding/Coating Dia. 80, 125 µm/165, 245 µm; Dual Acrylate Coating Manufactured with Corning’s patented outside vapor deposition (OVD) process, Corning® ER series of Erbium-doped specialty fibers set the worldwide standard for uniformity and reliability. Corning offers erbium-doped fibers with hermetic coatings for significant advantage with respect to mechanical reliability and resistance to hydrogen-induced optical attenuation degradation. These erbium-doped fibers have a proven track record in state-of-the-art optical amplifiers and exhibit consistently low splice loss when coupled with fibers such as Corning® HI 1060 FLEX, Corning® HI 980, and Corning SMF-28e+® optical fiber. Erbium-doped fiber designs are available for conventional C-band, L-band, and reduced-clad (80 μm) applications. Corning’s range of Erbium-doped fibers includes product series like ER 1550C3, ER 1550C3 LC, ER 1600L3 and RC ER 1550C3. For more information please refer to the Corning® ER Erbium-doped specialty optical fibers datasheet. In typical high-performance amplifiers built with Corning’s Erbium-doped fiber, gain consistency is maximized due to spectral uniformity of the fiber, eliminating the need for frequent adjustments to gain flattening filter design. Variations in gain spectrum and pump power requirements are greatly reduced, which makes for a more predictable amplifier manufacturing process and translates directly to lower costs for customers. Key Features: Outstanding Consistency and Uniformity Patented Outside Vapor Deposition (OVD) Process OVD Manufacturing Consistency Provides Repeatability for Gain Spectrum Allowing for the Reduction of Lot Qualifications in Amplifier Deployment Hermetic Coating for Increased Environmental Stability and Reliability Dual Acrylate Coating System Provides Excellent Protection and Superior Mechanical Robustness Short and Long Cutoff Wavelength C-band Versions Available Excellent Geometry Control Mode-field Diameter Designed to Match Corning® High Index Specialty Fiber Efficient Coupling With an EDFA Applications: Single and Multi-channel Optical Amplifiers; Digital and Analog Systems; Community Antenna Television (CATV) Amplifier

Cut off Wavelength 700, 1400 nm; Core Dia. 2.2, 8x7 µm; Cladding Dia. 125 µm; GeO2 Concentration 75, 98%Greitlex Photonics’ GDF series of Germanate glass core optical fibers is available for single mode (SM) or multi mode (MM) applications. GDF series fibers feature core diameters of 2.2 µm (round, GDF-SM-2.2/125-75) and 8x7 µm (elliptical, GDF-MM-8/125-98). The GDF-SM-2.2/125-75 single mode version is a higly Ge-doped silica Germanate glass core fiber used for a variety of nonlinear applications. The GDF-MM-8/125-98 multi mode version is a Germanate glass core fiber, also used for a variety of nonlinear applications. It replaces similar products from former FORC Photonics.Key Features: Germanium-doped Fibers Germanate Glass Core, GeO2 Concentration: 75, 98% Core Diameter: 2.2 µm, 8x7 µm (elliptical) Cladding Diameter: 125 µm Coating Diameter (GDF-MM-8/125-98): 250 µm Cut off Wavelength: 700, 1400 nm Minimum Loss (GDF-SM-2.2/125-75): 20 dB/km Attenuation (GDF-MM-8/125-98): 110, 200 dB/km Typ. Peak Gain: >0.2 dB/m

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