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Integrated in line optical switch based on liquid crystal infiltration

OWTNM 8 April 2005. PROFILL Project Process for Electro-optic devices based on infill of Si microcavities. Trento University : - Prof. L. Pavesi (group leader) - N. Daldosso (researcher) design and measurements - Francesco Ribol

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Integrated in line optical switch based on liquid crystal infiltration

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    1. OWTNM 8 April 2005 Integrated in line optical switch based on liquid crystal infiltration Francesco Riboli Trento University, Physics Department via Sommarive 14,38050 Povo (Trento), Italy

    2. OWTNM 8 April 2005 PROFILL Project Process for Electro-optic devices based on infill of Si microcavities Trento University : - Prof. L. Pavesi (group leader) - N. Daldosso (researcher) design and measurements - Francesco Riboli (Phd student) - M. Melchiorri (Phd student) ITC-IRST: - Albero Lui (researcher) - Georg Pucker (researcher) device’s realization

    3. OWTNM 8 April 2005 1D tunable Fabry-Perot microcavity filled with LC. Integrated Fabry-Perot microcavity Design of the device and definition of the parameters Optimization of the device Device performances: transmission spectrum and tunability Conclusions Outline

    4. OWTNM 8 April 2005 1D Fabry-Perot microcavity

    5. OWTNM 8 April 2005 Integrated Fabry-Perot microcavity

    6. OWTNM 8 April 2005 Architecture of the device

    7. OWTNM 8 April 2005 First optimization run

    8. OWTNM 8 April 2005 Coupled cavities system

    9. OWTNM 8 April 2005 Final optimization

    10. OWTNM 8 April 2005 Simulation results

    11. OWTNM 8 April 2005 Final device

    12. OWTNM 8 April 2005 Conclusions We have presented a new architecture of an integrated optical switch based on a FP microcavity filled with liquid crystals. By maximizing the overlap among the optical modes in each section of the device we have found a very promising performance of the switch. The optimized device has a TE0 resonant peak transmission value of about 95% with a quality factor of 900 and a tunability range of about 60nm@1.5mm

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