Approximating large scale arbitrary unitaries with integrated multimode interferometers | Zendy

Matthew van Niekerk | Zendy; Jeffrey A. Steidle | Zendy; Gregory A. Howland | Zendy; Michael L. Fanto | Zendy; Nicholas Soures | Zendy; Fatima Tuz Zohora | Zendy; Dhireesha Kudithipudi | Zendy; Stefan F. Preble | Zendy

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Approximating large scale arbitrary unitaries with integrated multimode interferometers

Author(s) -

Matthew van Niekerk,

Jeffrey A. Steidle,

Gregory A. Howland,

Michael L. Fanto,

Nicholas Soures,

Fatima Tuz Zohora,

Dhireesha Kudithipudi,

Stefan F. Preble

Publication year - 2019

Publication title -

rit scholar works (rochester institute of technology)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.1117/12.2523581

Subject(s) - beam splitter , multi mode optical fiber , photonics , computer science , astronomical interferometer , simple (philosophy) , interference (communication) , scale (ratio) , unitary state , physics , interferometry , electronic engineering , optics , quantum mechanics , optical fiber , telecommunications , laser , philosophy , channel (broadcasting) , epistemology , law , political science , engineering

Unitary operations using linear optics have many applications within the quantum and neuromorphic space. In silicon photonics, using networks of simple beam splitters and phase shifters have proven sufficient to realize large-scale arbitrary unitaries. While this technique has shown success with high fidelity, the grid physically scales with an upper bound of O(n2). Consequently, we propose to considerably reduce the footprint by using multimode interference (MMI) devices. In this paper, we investigate the active control of these MMIs and their suitability for approximating traditionally used unitary circuits.

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