|Title of host publication||European Conference on Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference (CLEO Europe - EQEC 2009), Munich|
|Publisher or commissioning body||Institute of Electrical and Electronics Engineers (IEEE)|
|Pages||1 - 1|
|Number of pages||1|
|State||Published - Jun 2009|
|Event||European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference (CLEO Europe - EQEC ) - Munich, Germany|
|Conference||European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference (CLEO Europe - EQEC )|
|Period||1/06/09 → …|
Quantum information science has shown that harnessing quantum mechanical effects can dramatically improve performance for certain tasks in communication, computation and measurement. Already a number of photonic quantum circuits have been realized for quantum metrology, lithography and quantum logic gates. However, these demonstrations have relied on large-scale (bulk) optical elements bolted to large optical tables, thereby making them inherently unscalable and confining them to the research laboratory. This paper reports on the implementation of quantum optic integrated circuits, which not only dramatically reduces the footprint of quantum circuits, but allows unprecedented stability and control of the optical path length; this reveals the possibility for realizing previously unfeasible large scale quantum circuits. Results from femtosecond laser directly-written quantum circuits are also discussed. A large range of chip-scale "photonic building blocks" have been realized using this so-called direct-write technique and they include multimode optical interconnects, directional couplers and interferometers. The directly written quantum circuits exhibited high 2 and 3-photon Hong-Ou-Mandel (HOM) interference visibilities of 95.8% plusmn 0.5 and 84% plusmn 3% respectively.
Rose publication type: Conference contribution
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European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference (CLEO Europe - EQEC )
|Duration||1 Jun 2009 → …|