English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Universal photonic processors (UPPs) are fully programmable photonicintegrated circuits that are key components in quantum photonics. With thiswork, we present a novel platform for the realization of low-loss, low-powerand high-fidelity UPPs based on femtosecond laser writing (FLW) and compatiblewith a large wavelength spectrum. In fact, we demonstrate different UPPs,tailored for operation at 785 nm and 1550 nm, providing similar high-levelperformances. Moreover, we show that standard calibration techniques applied toFLW-UPPs result in Haar random polarization independent photonictransformations implemented with average amplitude fidelity as high as 0.9979at 785 nm (0.9970 at 1550 nm), with the possibility of increasing the fidelityover 0.9990 thanks to novel optimization algorithms. Besides being the firstdemonstrations of polarization-transparent UPPs, these devices show the highestlevel of control and reconfigurability ever reported for a FLW circuit. Thesequalities will be greatly beneficial to applications in quantum informationprocessing.

High-fidelity and polarization insensitive universal photonic processors fabricated by femtosecond laser writing