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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The implementation of fiber-based long-range quantum communication requirestunable sources of single photons at the telecom C-band. Stable andeasy-to-implement wavelength- tunability of individual sources is crucial to(i) bring remote sources into resonance, to (ii) define a wavelength standardand to (iii) ensure scalability to operate a quantum repeater. So far, the mostpromising sources for true, telecom single photons are semiconductor quantumdots, due to their ability to deterministically and reliably emit single andentangled photons. However, the required wavelength-tunability is hard toattain. Here, we show a stable wavelength-tunable quantum light source byintegrating strain-released InAs quantum dots on piezoelectric substrates. Wepresent triggered single-photon emission at 1.55 {\mu}m with a multiphotonemission probability as low as 0.097, as well as photon pair emission from theradiative biexciton-exciton cascade. We achieve a tuning range of 0.25 nm whichwill allow to spectrally overlap remote quantum dots or tuning distant quantumdots into resonance with quantum memories. This opens up realistic avenues forthe implementation of photonic quantum information processing applications attelecom wavelengths.

A stable wavelength-tunable triggered source of single photons and cascaded photon pairs at the telecom C-band