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18 October 2004 Linearized electro-optic directional coupler modulator in stoichiometric lithium niobate
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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.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
John A. Marsh, Sriram Sriram, Anand Gopinath, Ross Schermer, Jaesang Oh, Stuart Kingsley, and Andrea Pollick "Linearized electro-optic directional coupler modulator in stoichiometric lithium niobate", Proc. SPIE 5554, Photonics for Space Environments IX, (18 October 2004); https://doi.org/10.1117/12.563068
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