Continuously tunable delay line based on SOI tapered Bragg gratings | Zendy

Ivano Giuntoni | Zendy; David Stolarek | Zendy; Dimitar Kroushkov | Zendy; J. Bruns | Zendy; Lars Zimmermann | Zendy; Bernd Tillack | Zendy; K. Petermann | Zendy

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Continuously tunable delay line based on SOI tapered Bragg gratings

Author(s) -

Ivano Giuntoni,

David Stolarek,

Dimitar Kroushkov,

J. Bruns,

Lars Zimmermann,

Bernd Tillack,

K. Petermann

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.011241

Subject(s) - silicon on insulator , materials science , optics , fiber bragg grating , electron beam lithography , gigabit , lithography , dispersion (optics) , optoelectronics , silicon , physics , resist , wavelength , layer (electronics) , composite material

The realization of an integrated delay line using tapered Bragg gratings in a drop-filter configuration is presented. The device is fabricated on silicon-on-insulator (SOI) rib waveguides using a Deep-UV 248 nm lithography. The continuous delay tunability is achieved using the thermo-optical effect, showing experimentally that a tuning range of 450 ps can be obtained with a tuning coefficient of -51 ps/°C. Furthermore the system performance is considered, showing that an operation at a bit rate of 25 Gbit/s can be achieved, and could be extended to 80 Gbit/s with the addition of a proper dispersion compensation.

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