Fiberguide Industries - AGI™ Series Fiber
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AGI™ Series Fiber
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AGI™ Series - Buffer/Jacket

larger image 		While graded index silica/silica fibers are available from a number of suppliers with standard polymer coatings, Fiberguide is unique in offering these fibers with high performance buffers/coatings of aluminum, gold and polyimide.

Graded index is actually a compromise between step index multimode and single mode fibers, trading off bandwidth for ease of termination and light launch. The graded profile and smaller core increases bandwidth over step index multimode, but the core sizes are still large enough for convenient termination and use of lower cost diodes. Graded index fiber remains a popular standard for use in medium distance (2-15 km) data communication links. The construction is always silica core/silica clad based, with dopants (typically Ge, B, P, and F) used to adjust the refractive index in the graded profile. This fiber is used almost exclusively for medium distance data communication (local area networks) and shipboard applications, although it is sometimes used for fiber sensor systems. The smaller core area makes this fiber less useful for power delivery applications, however new special, larger core designs specifically for high power applications are available.

Fiber Specification
Note : The fibers in the following table carry a designation "AGI" standing for "Anhydrous Graded Index", followed by the mode-field diameter and cladding diameters (in microns) and concluding with the suffix "T" that designates Thermocoat/Polyimide buffer (145 µm ± 5 µm O.D.), suffix "A" that designates Aluminum buffer (175 µm ± 9 µm O.D.), and suffix "G" that designates Gold buffer (155 µm ± 15 µm O.D.)


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Item #

Standard Buffer Coating

O.D.

Core Diameter

Clad Diameter

Numerical Aperture (NA)

Attenuation at 850pm

Attenuation at 1300pm

AGI 50/125-T Thermocoat/Polyimide 145µm ± 5µm 50µm ± 3µm 125µm ± 1µm/-3µm 0.200 ± 0.015 ≤2.7 dB/km ≤0.8 dB/km
AGI 50/125-A Aluminum 175µm ± 9µm 50µm ± 3µm 125µm ± 1µm/-3µm 0.200 ± 0.015 ≤2.7 dB/km ≤0.8 dB/km
AGI 50/125-G Gold 155µm ± 15µm 50µm ± 3µm 125µm ± 1µm/-3µm 0.200 ± 0.015 ≤2.7 dB/km ≤0.8 dB/km
AGI 62.5/126-T Thermocoat/Polyimide 145µm ± 5µm 62.5µm ± 3µm 125µm ± 1µm/-3µm 0.275 ± 0.015 ≤3.0 dB/km ≤0.8 dB/km
AGI 62.5/126-A Aluminum 175µm ± 9µm 62.5µm ± 3µm 125µm ± 1µm/-3µm 0.275 ± 0.015 ≤3.0 dB/km ≤0.8 dB/km
AGI 62.5/126-G Gold 155µm ± 15µm 62.5µm ± 3µm 125µm ± 1µm/-3µm 0.275 ± 0.015 ≤3.0 dB/km ≤0.8 dB/km
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