Title :
5.2µs-response variable focal-length lenses using KTa1-xNbxO3 crystals
Author :
Imai, Tadayuki ; Yagi, S. ; Toyoda, Seiji ; Miyazu, Jun ; Sasaura, Masahiro ; Naganuma, Kazunori
Author_Institution :
NTT Photonics Labs., Nippon Telegraph & Telephone Corp., Atsugi, Japan
Abstract :
Electro-optic crystals are promising candidates for materials used for variable focal-length lenses because they exhibit fast responses. Variable focal-length lenses fabricated using EO lead-lanthanum zirconate-titanate (PLZT). However, when used as cylindrical lenses, they suffer from intrinsic inhomogeneity as regards focal length. In this paper, we propose KTa1-xNbxO3 (KTN) lenses that do not suffer from this inhomogeneity because of their different geometry. We also discuss basic properties of the lenses including time responses.
Keywords :
electro-optical devices; lenses; optical fabrication; optical materials; potassium compounds; tantalum compounds; KTa1-xNbxO3; cylindrical lenses; electro-optic crystals; intrinsic inhomogeneity; lens fabrication; optical materials; variable focal-length lens; Anodes; Electrodes; Laser beams; Lenses; Nonlinear optics; Optical refraction; Optical variables control; Photonic crystals; Refractive index; Voltage;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5196512
