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Proceedings Paper

Linearized electro-optic directional coupler modulator in stoichiometric lithium niobate
Author(s): John A. Marsh; Sriram Sriram; Anand Gopinath; Ross Schermer; Jaesang Oh; Stuart Kingsley; Andrea Pollick
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Paper Abstract

This paper reports on a novel optical linearized directional coupler modulator in stoichiometric lithium niobate (SLN). The linearized design has important applications in analog and RF communications systems where fiber optic link performance depends critically on the spurious-free dynamic range of the modulator. Newly available SLN has several distinct advantages over the congruently grown crystals commonly used for high speed integrated optic devices, including higher electrooptic coefficient and better ferroelectric properties. The higher electrooptic coefficient yields lower drive voltage, while the enhanced ferroelectric properties enable better velocity-matched electrode structures using domain inverted waveguides. This paper addresses the operation of the linearized directional coupler design, and the critical advantages of the SLN substrate for implementing high-speed operation using velocity-matching.

Paper Details

Date Published: 18 October 2004
PDF: 7 pages
Proc. SPIE 5554, Photonics for Space Environments IX, (18 October 2004); doi: 10.1117/12.563068
Show Author Affiliations
John A. Marsh, Srico, Inc. (United States)
Sriram Sriram, Srico, Inc. (United States)
Anand Gopinath, Univ. of Minnesota/Twin Cities (United States)
Ross Schermer, Univ. of Minnesota/Twin Cities (United States)
Jaesang Oh, Univ. of Minnesota/Twin Cities (United States)
Stuart Kingsley, Srico, Inc. (United States)
Andrea Pollick, Srico, Inc. (United States)


Published in SPIE Proceedings Vol. 5554:
Photonics for Space Environments IX
Edward W. Taylor, Editor(s)

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