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EDF-T9

All purpose gain-matched EDF

High Erbium Concentration ASE Source Fiber

Gain spectrum can be matched to EDFA maker’s gain-flattening-filter, or to other standard EDFs
Excellent efficiency due to highly homogeneous glass matrix
Waveguide parameters chosen for low noise-figure, suppressed four-wave mixing and suppressed signal ESA
Low splice losses
Low OH content

Coherent’s EDF-T9 is an all purpose erbium-doped fiber, currently used as the EDF work-horse in a wide variety of amplifier designs. Our unique, proprietary doping method provides a number of measurable advantages. These include low OH content, a homogeneous glass matrix (for low clustering, high conversion efficiency, and consistency), and the ability to control aluminum content with a high degree of precision. Tight control over aluminum allows us to match the gain spectrum of EDF-T9 to any existing gain-flattening filter, or to another standard available EDF.

Coherent provides a full set of reliability qualification data and analyses for EDF products.

Specifications

Product code	EDF-T9

Cut-off wavelength	800 - 950 nm

Mode field diameter @ 1550 nm	4.9 - 6.3 μm

Numerical aperture	0.23 ± 0.02

Background loss @ 1200 nm	≤ 7 dB/km

Peak absorption near 1530 nm	5.0 - 7.0 dB/m

Cladding diameter	125 ± 1 μm

Coating diameter	245 ± 10 μm

Proof test level	≥ 200 kpsi

Coating type	UV-cured dual acrylate

For more information contact us.