OPTICAL FINITE IMPULSE RESPONSE FILTER WITH RATE FLEXIBILITY AND MULTI-WAVELENGTH OPERATION CAPABILITY BASED ON INTEGRATED DELAY LINES WITH MICRO-RING RESONATORS

OPTICAL FINITE IMPULSE RESPONSE FILTER WITH RATE FLEXIBILITY AND MULTI-WAVELENGTH OPERATION CAPABILITY BASED ON INTEGRATED DELAY LINES WITH MICRO-RING RESONATORS

The present invention is associated with the design of a photonic integrated circuit with tapped delay lines that can act as a direct-form Finite Impulse Response (FIR) filter with symbol rate flexibility. Compared to previous implementations, it combines the symbol rate flexibility with the small s...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GOUNARIDIS, Eleftherios, GKROUMAS, Panagiotis, MYLONAS, Elias, TSOKOS, Christos, KOULOUMENTAS, Christos
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING
FREQUENCY-CHANGING
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICAL LOGIC ELEMENTS
OPTICS
PHYSICS
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:The present invention is associated with the design of a photonic integrated circuit with tapped delay lines that can act as a direct-form Finite Impulse Response (FIR) filter with symbol rate flexibility. Compared to previous implementations, it combines the symbol rate flexibility with the small size and the low cost aspect of photonic integration. The delay elements are based on the combination of smaller Micro-Ring Resonators (MRRs) that have tunable time delay and larger MRRs that can contribute to the total time delay with their round-trip time. The circuit can also accommodate operation with multiple Wavelength Division Multiplexing channels, provided that their spacing is the same with the wavelength periodicity of the time delay. The circuit can be combined with typical transmitters and receivers and used as an adaptive time domain equalizer in optical transmission systems. It can also be used as an optical correlator in optical processing systems.