Title :
Integrated optical, wavelength selective, acoustically tunable 2×2 switches (add-drop multiplexers) in LiNbO3
Author :
Wehrmann, Frank ; Harizi, Christiane ; Herrmann, Harald ; Rust, Ulrich ; Sohler, Wolfgang ; Westenhöfer, Susanne
Author_Institution :
Angewandte Phys., Univ. Gesamthochschule Paderborn, Germany
fDate :
6/1/1996 12:00:00 AM
Abstract :
Fully packaged, polarization independent, integrated acoustooptic 2×2 switches have been developed which can be also used as add/drop multiplexers. The devices have been fabricated in X-cut Y-propagating LiNbO3 and can be operated at wavelengths around 1550 nm. They consist of passive polarization splitters and acoustooptic TE-TM converters with weighted coupling. A filter bandwidth of 2.0 nm and a tuning range of 130 nm have been obtained. The fiber-to-fiber insertion loss is <4.6 dB and a residual polarization dependence of 1.3 dB for bar-state and 0.1 dB for cross-state routing has been achieved
Keywords :
acousto-optical switches; integrated optics; lithium compounds; optical communication equipment; optical fibre losses; packaging; telecommunication network routing; tuning; wavelength division multiplexing; 1550 nm; 4.6 dB; LiNbO3; X-cut Y-propagating LiNbO3; acoustooptic TE-TM converters; add/drop multiplexers; bar-state; cross-state routing; fiber-to-fiber insertion loss; filter bandwidth; fully packaged polarization independent integrated acoustooptic 2×2 switches; integrated optical wavelength selective acoustically tunable 2×2 switches; passive polarization splitters; residual polarization dependence; tuning range; weighted coupling; Add-drop multiplexers; Band pass filters; Bandwidth; Insertion loss; Integrated optics; Optical fiber polarization; Optical filters; Optical polarization; Optical switches; Packaging;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.577374
