CLEO®/Europe-EQEC 2021 Programme

CLEO®/Europe-EQEC 2021 will virtually take place from Monday 21 June (starting at 8:30am CET time) to Friday 25 June 2021 (ending at 6:00pm CET time). The technical programme will present oral and poster contributions encompassing all fields of quantum electronics, lasers and photonics. All aspects of the technologies will be covered, including fundamentals, device development, systems, and applications. CLEO®/Europe emphasises applied physics, engineering and applications of lasers and electro-optics, while the emphasis of EQEC is on fundamental science including laser physics, nonlinear optics and fundamentals of quantum optics.

The technical programme will feature more than 1400 presentations including 3 Plenary talks (CLEO®/Europe, EQEC, WoP), 5 Tutorial talks, 9 Keynote talks, 72 Invited talks, 20 upgraded talks to invited, 917 oral talks and 413 poster presentations. 12 Short Courses are scheduled (half days each) to take place in parallel on Wednesday afternoon 23 June 2021 (except SH-12 to take place in the morning). Additionally 18 oral presentations will be presented as postdeadline papers on Thursday evening 24 June 2021 (6:00-8:00pm).
In the exception of the plenary sessions and the special session featuring Herbert Walter Award & Wolfgang Peter Schleich’s tutorial, all oral sessions will run in parallel. A total of 199 oral sessions (1 hour 1/2 each) will be scheduled over the five conference days and up to 12 sessions will run in parallel. 9 poster sessions are scheduled to allow discussion/interaction with the poster authors.

Download CLEO/Europe-EQEC 2021 Advance Programme
Download CLEO/Europe-EQEC 2021 Days at a Glance
Download CLEO/Europe-EQEC 2021 Sessions at a Glance
Download CLEO/Europe-EQEC 2021 General part of the Advance Programme

Download CLEO/Europe-EQEC 2021 Online Digest
(access only for registered persons).

The conference schedule is based on Central European Summer Time zone (CEST Paris time zone, UTC+02:00).
Use an online time converter to translate session times to your local time zone.
During the meeting when you log in to the schedule with your password, session times will convert to your selected time zone.

As of 18 June 2021 fully registered participants received the information on how to access the attendee hub, attend the conference sessions and watch poster presentations. In case you get lost in your emails, you can also access via the buttons on the conference front page: (use the same email address as when you registered).

The “Welcome Words and World of Photonics Congress Plenary Talk” by 2020 Nobel Prize Co-Laureate Reinhard Genzel, Max-Planck-Institut für extraterrestrische Physik, Garching, Germany entitled “A 40-year journey” to take place Monday 21 June 11:00 – 12:30 am CEST time zone, will be directly broadcasted from Messe Munich’s platform. Instructions on how to join in was sent via email on 16 June 2021. In case you do not find your email invitation, you can also access by registering via

For all other CLEO/Europe-EQEC sessions, join in via the CLEO/Europe-EQEC platform.

As you know, the meeting will not be complemented by the LASER World of Photonics, the world’s largest tradeshow of laser and optical technology, which is rescheduled to take place in person in Munich, Germany, April 26–29, 2022. However, from June 21 to 24, 2021, Messe Munich will present the “LASER World of PHOTONICS Industry Days” on the World of Photonics Stage. This will take place in parallel to the digital conferences of the World of Photonics Congress and offer the photonics community a platform for information exchange and networking. See

Short Course Programme:
12 Shorts Courses at extra cost will take place on Wednesday afternoon or morning as per the schedule below (all times given in CET time zone):
SH-1, Wednesday, 16:30–20:00, ROOM 1, Selcuk Akturk
SH-2, Wednesday, 16:30–20:30, ROOM 2, Andy Clarkson
SH-3, Wednesday, 16:30–20:00, ROOM 3, M. Ebrahim-Zadeh
SH-4, Wednesday, 16:30–20:00, ROOM 4, James R. Leger
SH-5, Wednesday, 16:30–20:00, ROOM 5, Gerd Leuchs
SH-6, Wednesday, 16:30–20:00, ROOM 6, Jerome Faist
SH-7, Wednesday, 16:30–20:00, ROOM 7, Daniel Mittleman
SH-8, Wednesday, 16:30–20:00 ROOM 8, Benoît Boulanger
SH-9, Wednesday, 16:30–20:00, ROOM 9, Thomas Udem
SH-10, Wednesday, 16:30–20:00, ROOM 10, Dries Van Thourhout
SH-11, Wednesday, 16:30–20:00, ROOM 11, Coskun Kocabas
SH-12, Wednesday, 8:30–12:00, ROOM 12, Arti Agrawal

CLEO®/Europe-EQEC 2021 Poster sessions

Posters are a major attraction and provide an intimate interaction between the presenter and the viewer. Poster authors will be able to virtually meet and discuss with participants. During their allocated poster session day and time, presenters are requested to stay in their attributed break out room for informal discussions and explanations. No oral sessions are organised during that time.

Poster time schedules (all times given in CET time zone):

  • Monday: 10:00 – 11:00 (CA, CB, CI and JSV topics)
    Monday: 13:30 – 14:30 (EA, EB and EJ topics)
  • Tuesday: 13:30 – 14:30 (CD and ED topics)
  • Wednesday: 10:00 – 11:00 (CC, CF, CE and JSII topics)
    Wednesday: 13:30 – 14:30 (EC, EH, EI an JSI topics)
  • Thursday: 10:00 – 11:00 (CG, EE and EF topics)
    Thursday: 13:30 – 14:30 (CJ, CK and CL topics).
  • Friday: 10:00 – 11:00 (CH, EG and JSIV topics)
    Friday: 13:30 – 14:30 (CM topic)

Special session on Hot Topics: What’s Next in Integrated Frequency Combs?
Time: Wednesday, 13:30–14:30 CEST (7:30 – 8:30 EDT) Location: ROOM 1

This session will showcase a 1-hour virtual panel discussion organized by OSA’s Integrated Photonics Technical Group. The event will offer an overview of the many existing approaches based on active (lasers) and passive (high-Q resonators) devices, using different nonlinearities (Chi2 and Chi3) and spanning various spectral regions (from the visible to the THz). The featured presenters will discuss the physical mechanism of comb generation, device characteristics, and applications as well as highlight exciting related talks at CLEO Europe. Panelists include Miriam Vitiello, CNR; Benedikt Schwarz, TU Wien; Tobias Kippenberg, EPFL; Scott Papp, NIST; and Ingo Breunig, University of Freiburg.

The conference programme could not have been elaborated without the vital support and effort of 275 scientists, forming 13 CLEO®/Europe, 10 EQEC, 5 Joint Symposia and 2 Joint Sessions sub-committees, who have assembled an excellent series of talks and posters covering a wide range of fields in optics and quantum electronics.

The Conference Chairs would like to extend their sincere thanks to the technical programme committee members for all their hard and fruitful work. A conference as large as CLEO®/Europe-EQEC requires two years of planning and organisation. Here, we also thank the staff of the European Physical Society, and the local conference chair in Munich for invaluable professional assistance during this period. We thank Messe München GmbH, the World of Photonics Congress steering committee, the CLEO/Europe-EQEC steering committee and all the Sponsoring Societies for their guidance, support, and their invaluable advice, which ensures that this event not only remains at the core of optics and photonics research for many nations, but will also be a major event in Europe.

Let us finally thank our attendees. The real success of CLEO®/Europe-EQEC 2021 indeed rests on the efforts and commitments of these researchers and students, who all contribute to the tremendous evolution of our research field and to the high quality of the papers that will be presented.

We wish you an interesting and wonderful conference.