We are pleased to announce and invite you to one of our weekly online zoom events.
 

Scaling DFB Laser Production for AI Optical Interconnects with Eulitha's Displacement Talbot Lithography

AI datacenter hyperscale buildouts are driving unprecedented demand for DFB lasers. In fact, optical data interconnect has become the bottleneck over compute capacity, and InP DFB supply is now a major constraint. This makes high-uniformity grating lithography a critical manufacturing step. Displacement Talbot Lithography (DTL) is rapidly becoming the default manufacturing technology for this step, with leading DFB foundries in the US and Asia adopting Eulitha’s tools for volume manufacturing. DTL is a scalable, low-cost optical method for producing the high-resolution (~200 nm period) gratings DFB lasers require. It achieves sub-10 picometer pitch accuracy across a full wafer, essential for spectral performance, and patterns over complex topographies thanks to its large depth of focus. DTL covers wavelengths from blue to infrared and supports substrates such as InP and GaAs. Combined with non-contact exposure, a large single-exposure field, and compatibility with standard photomasks and photoresists, Eulitha’s fully automated DTL tools provide a proven path to high-volume DFB manufacturing.

Speaker

Dr. Jonathan Spring, Sales Engineer Eulitha

• 2012-2016: Bachelor in Materials Science, ETH Zürich
• 2016-2018: Master in Materials Science, ETH Zürich and MIT
• 2019-2023: PhD in Physics, University of Zurich and TU Vienna:
  • Research of electric and magnetic properties of functional double perovskite oxide thin films

Moderator

Dr. Christian Bosshard, Managing Director Swissphotonics
Dr. Christian Bosshard received his degree in Physics (1986) and his doctorate (1991, Silver medal award) from ETH. From 2001-2021 he was working at CSEM, first as Section Head and then as Vice President and Head Photonics. Since 2013 he is Managing Director of Swissphotonics. Christian is a Fellow of Optica, President of Swiss PIC, former Board Member of EPIC, and Member of the Board of the University of Basel.

Date
Tuesday, 27 October 2026

Time
12:00 - 12:45

Software
Zoom

Costs
free of charge

Registration only necessary once
This event series requires registration (see link above). We will send you the access information (Zoom-link and ID) by email after the registration. As the Zoom link remains the same every week, you do not need to register again for the following meetings.

Contact Eulitha
Dr. Jonathan Spring
Sales Engineer

Contact Swissphotonics
Dr. Christian Bosshard
Managing Director Swissphotonics
+41 79 405 1826

19 October 2026, Christian Bosshard