Title :
Taper designs for semiconductor filled fibres
Author :
Broderick, Neil G R ; Peacock, Anna C.
Author_Institution :
Optoelectron. Res. Centre, Univ. of Southampton, Southampton, UK
Abstract :
Recently there has been much interest in designing optical tapers for nonlinear pulse manipulation in both standard and semiconductor filled fibres. Such tapers can be used to overcome the large linear losses in semiconductor filled fibres while allowing parabolic pulse generation or soliton propagation for example. However once the taper profile has been chosen to overcome the linear loss problem in semiconductor filled fibres the problem of two photon absorption (TPA) and associated free carrier effects remain. This work shows that it is possible to use a genetic algorithm to design tapers that alleviate both linear and nonlinear losses and hence should allow high quality pulse propagation over several centimetres of semiconductor filled fibres.
Keywords :
genetic algorithms; optical design techniques; optical fibre losses; optical pulse generation; optical solitons; physics computing; two-photon processes; free carrier effects; genetic algorithm; high quality pulse propagation; linear losses; nonlinear losses; nonlinear pulse manipulation; optical taper designs; parabolic pulse generation; semiconductor filled fibres; soliton propagation; two photon absorption; Dispersion; Genetic algorithms; Optical losses; Optical pulse generation; Optical solitons; Optical waveguides;
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4577-0533-5
Electronic_ISBN :
Pending
DOI :
10.1109/CLEOE.2011.5942663
