The event is co-hosted by the QTX research forum led by Alexander Ling of NUS and Markus Krutzik of Humboldt-Universität zu Berlin and Ferdinand-Braun-Institut, Leibnizinstitut für Höchstfrequenztechnik. The forum has previously met in Singapore (2018), Germany (2018), UK (2019), and online (2020, 2021).

After last year's successful virtual QTX-5 workshop, we are meeting again in person for the next "quantum technologies on small satellites QTX-6 workshop" on 26-27 September in Singapore!

We are planning a two-day event that will focus on (small) satellite technologies and quantum experiments in space - from components to missions. The workshop also includes a visit to Singaporean space start-up SpeQtral (


Alexander Ling (Centre for Quantum Technoogies, NUS, Singapore)
Markus Krutzik (Humboldt-Universität zu Berlin and Ferdinand-Braun-Institut, Leibnizinstitut für Höchstfrequenztechnik, Germany)


NUSS, Kent Ridge Guild House, 9 Kent Ridge Drive, Singapore 119241


Monday 26 September

9:00-9:15 Opening and welcome remarks

9:15-10:00 Panel: Introduction to space ecosystems, MC Alexander Ling

10:00-10:30 Coffee break

Space-based QKD

10:30-11:00 Jasminder Sidhu: Satellite QKD Finite Key Effects and Parameter Optimisation for WCP DS BB84

11:00-11:30 Christian Roubal: Laser terminal for CubeSat-based QKD-satellite

11:30-12:00 Moritz Mihm: An optical ground station for space-based quantum key distribution

12:00-13:30 Lunch break

Commercial space activities

13:30-14:00 Robert Bedington: Overview of activities at SpeQtral

14:00-14:30 Transcelestial: Design of a free space beacon module for small satellites

14:30-15:00 Christoph Wildfeuer: Swiss Space Quantum Communication and Post-Quantum Cryptography

15:00-15:30 Coffee break

Fundamental technologies

15:30-16:00 James Grieve: TBD

16:00-16:30 Fabian Steinlechner: Quantum Information Processing with High-Dimensionally Entangled Photons

Tuesday 27 September

Considerations for space-based optical communications

9:30-10:00 Ayesha Reezwana: Clear sky studies in Singapore for ground-to-satellite quantum key distribution and free space optical communication

10:00-10:30 Ramy Tannous: Avenues for using reference frame independent protocols to enhance free space satellite quantum communications channels

10:30-11:00 Coffee break

Quantum technologies in space

11:00-11:30 Makan Mohageg: Space-Based Quantum Technologies at NASA/JPL: past successes, current missions, and future opportunities

11:30-12:00 Lam Ping Koy: Quantum metrology in space with bright laser fields

12:00-12:30 Simon Kanthak: Engineering of matter-wave lenses for quantum sensing and information

12:30-16:00 Lunch and SpeQtral visit