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EDF-T15

Ultra-high concentration EDF for L-band amps and pulsed fiber lasers

High Erbium Concentration ASE Source Fiber

High erbium concentration for L-band amplifiers and for reduction of non-linear effects in high-power lasers
Excellent efficiency due to highly homogeneous glass matrix, even for high erbium concentration
Low splice losses
Optimized splice loss recipes provided for client’s fusion slicer
Low OH content (<0.25 ppm)

Coherent's EDF-T15 is an ultra-high-concentration erbium-doped fiber, used in L-band amplifiers and in ultra-short pulse fiber lasers. Our unique proprietary doping method provides a number of measurable advantages. These include low OH content (< 0.25 ppm), a homogeneous glass matrix (providing low clustering even for very high erbium concentrations), and the ability to control aluminum content with a high degree of precision. Tight control over aluminum allows us to maintain consistent gain spectra from batch to batch.

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

Specifications

Product code	EDF-T15

Cut-off wavelength	< 1400 nm

Mode field diameter @ 1550 nm	4.7 - 6.3 μm

Numerical aperture	0.23 ± 0.02

Background loss @ 1200 nm	< 12 dB/km

Peak absorption near 1530 nm	25 - 35 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.