Researchers demonstrate quantum-coherent InAs quantum dot interface in telecom O-band
Updated
Updated · Nature.com · Apr 27
Researchers demonstrate quantum-coherent InAs quantum dot interface in telecom O-band
2 articles · Updated · Nature.com · Apr 27
The device achieved transform-limited linewidths just 8% above the inverse lifetime and a 41.7MHz emission rate under 80MHz pi-pulse excitation.
The waveguide-integrated quantum dots operate at 1,260-1,360nm, the original telecom band used in fibre networks and compatible with scalable silicon photonics.
The advance addresses a longstanding materials and device challenge, strengthening prospects for high-quality single-photon sources and photon-emitter links in future quantum networks.
With new emitters working in telecom bands, is frequency conversion for quantum networks now obsolete?
How will linking quantum computers over fiber networks reshape global communication and security?
What is the biggest hurdle preventing these quantum breakthroughs from connecting our homes and cities?