Title :
Pattern control by pump beam detuning in a photorefractive single feedback system
Author :
Jander, Ph ; Ripperda, Ch ; Denz, C.
Author_Institution :
Inst. of Appl. Phys., Westfalischen Wilhelms-Univ., Munster, Germany
Abstract :
This study experimentally demonstrates deterministic switching between square and squeezed hexagonal patterns by pump beam detuning and investigates its suitability as a control method. This paper also present an analysis of the effect of pump detuning on fundamental unstable modes under one transverse dimension and discusses its relevance for the control of two-dimensional patterns. Experimental results are compared to predictions obtained by means of a linear stability analysis.
Keywords :
optical feedback; optical pumping; optical switches; photorefractive effect; deterministic switching; fundamental unstable modes; linear stability analysis; pattern control; photorefractive system; pump beam detuning; single feedback system; square patterns; squeezed hexagonal patterns; transverse dimension; two-dimensional patterns; Control systems; Feedback; Laser excitation; Optimized production technology; Pattern analysis; Pattern formation; Photorefractive effect; Physics; Stability analysis;
Conference_Titel :
Quantum Electronics Conference, 2005. EQEC '05. European
Print_ISBN :
0-7803-8973-5
DOI :
10.1109/EQEC.2005.1567319
