L-Band Erbium Doped Fibers

This L-band Erbium Doped Fiber (EDF) product offers a pioneering fiber design that provides superior performance for L-band Erbium Doped Fiber Amplifiers (EDFAs). The core composition of EDFL-1480-HP-30 has been engineered to maximise the gain performance between 1570nm to 1630 nm and beyond. This allows use of the fiber in L, L+, L++ and Super L-band amplifiers.Its high cut-off wavelength (HC) fibers have larger core diameters, reducing non-linear effects and increasing efficiency at higher pump powers.

Product features：Highly consistent and reproducible spectroscopy — no need to batch matching GFFs、 Excellent core concentricity — low splice loss、 Detailed lot-specific characterization data — compatible with modeling programs

Application area：L-band EDFAs / Telecoms、 Low Power Fiber lasers、 Wide band ASE sources、 Lidar

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General Parameters

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Dimensional Drawing

Specifications

PN#/Parameters			EDFL-1480-HP-30	EDFL-1480-HP-37	EDFL-1480T-HP-30
Optical specs	Operating wavelength	nm	L-band	L-band	L-band
	Cut-off wavelength	nm	≤1230	≤1230	≤1230
	Fiber core NA	-	0.26±0.02	0.26±0.02	0.26±0.02
	Background loss@1200nm	dB/km	≤10.0	≤10.0	≤10.0
	Core absorption@1530nm	dB/m	30.0±3.0	37.0±3.0	30.0±3.0
	Mode field diameter @1550nm	µm	4.9±0.7	5.0±0.7	4.9±0.7
Geometric dimensions & mechanical specs	Cladding diameter	µm	125.0±1.0	125.0±1.0	80.0±1.0
	Coating diameter	µm	245.0±5.0	245.0±5.0	165.0±2.0
	Core-cladding concentricity error	µm	≤0.3	≤0.3	≤0.3
	Cladding shape	-	round	round	round
	Coating material	-	High refractive index coating	High refractive index coating	High refractive index coating
	Matrix material	-	quartz	quartz	quartz
	Screening strength	kpsi	≥200	≥200	≥200

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