Multimode Add-Drop multiplexing by adiabatic linearly tapered coupling

Technion - Israel Institute of Technology, H̱efa, Haifa, Israel
Optics Express (Impact Factor: 3.49). 12/2005; 13(23):9381-7. DOI: 10.1364/OPEX.13.009381
Source: PubMed


Multimode multiplexing can potentially replace WDM for implementing multichannel short reach interconnects. Multiple optical modes can thus be exploited as the channels for transferring optical data, where each mode represents an independent data channel. The basic building block of the system is a Mode Add/Drop which can be implemented based on adiabatic power transfer. We propose a new scheme for realization of such adiabatic mode add drop with a predefined coupling profile, and demonstrate it by employing a linearly decreasing coupling coefficient along the propagation length. Realization using Silicon-On- Insulator (SOI) platform is discussed - which offers the possibility of direct integration of the optoelectronic circuitry with the Si processor.

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    • "An attractive alternative to WDM is the mode division multiplexing (MDM) [5], in which each mode represents an independent data channel. Several basic building blocks for MDM, such as the mode add/drop multiplexer [6] and the mode generator [7], have been proposed. A common feature of these devices is that adiabatic design schemes were used. "
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