ABSTRACT A novel design of high and broad gain that covers C and L bands is
demonstrated experimentally. The techniques, used in this paper, combine two double pass …

A new gain improvement technique for L‐band EDFA is presented. It uses an unpumped
EDF in a double‐pass configuration in order to effectively suppress and completely exploit …

We theoretically investigate the gain and noise figure of an L‐band gain‐flattened EDFA
obtained from the one‐stage single‐pass, one‐stage double‐pass, and two‐stage double …

A gain‐clamping technique in two‐stage double‐pass L‐band EDFA is demonstrated using
a single fiber Bragg grating (FBG). Two types of FBGs, broadband and narrowband, have …

In this letter, we investigate and compare theoretically the performance of an optimized L-
band erbium doped fiber amplifier when an L-band erbium doped fiber (EDF) or an …

A gain‐clamped long‐wavelength‐band erbium‐doped fiber amplifier (L‐band EDFA)
based on a ring‐laser cavity is demonstrated using two C/L‐band wavelength‐selective …

We propose a novel structure for an wideband EDFA, which use backward amplified
spontaneous emission from the C-band EDFA as the injection seed source for the L-band …

We present a novel L-band EDFA design and its optimization based on co-propagating C-
band seed technique. This technique provides over 30 dB gain with a moderate NF (< 5.5 …

A comparative study on a single-and double-pass configurations for Erbium-doped fiber
amplifier (EDFA) are demonstrated using a gain media of high concentration Silica-based …

Based on the analysis of conventional L-band EDFA we demonstrate a novel structure that
improves the L-band amplification performances. In conventional L-band EDFA, 35nm …