Title :
Segmented-clad fiber design for inherently gain-flattened L+-band TDFA
Author :
Kakkar, Charu ; Monnom, Gerard ; Thyagarajan, K. ; Dussardier, Bernard
Abstract :
We present here an efficient design for high gain, inherently gain-flattened L+-band thulium-doped fluoride fiber amplifier (TDFA), based on a novel segmented clad fiber refractive index profile. Detailed simulations show that the designed amplifier is able to achieve 20-dB gain, with ±0.7-dB gain ripple over 40-nm bandwidth (1600-1640) nm. Performance comparisons of the proposed module with an L+-TDFA based on conventional W-fiber designs and on a conventional step-index fiber have also been carried out.
Keywords :
fluorine compounds; optical communication equipment; optical design techniques; optical fibre amplifiers; optical fibre cladding; refractive index; thulium; 20 dB; gain-flattened L+-band TDFA; refractive index profile; segmented-clad fiber design; thulium-doped fluoride fiber amplifier; Bandwidth; Erbium-doped fiber amplifier; Optical amplifiers; Optical fiber amplifiers; Optical fiber losses; Optical fibers; Physics; Refractive index; Signal design; Stimulated emission; Gain flattening; leakage loss; leaky mode; optical fiber amplifier; thulium;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.853224
