IEM Seminar Series: Optical filtering based products: Lego bricks and missing pieces of the puzzle
Abstract
In this talk we will discuss several photonic and optical products based on optical filtering. We will review the fundamental physics of filtering, basic building blocks and the existing technological implementations. An outlook is given towards future products. Open challenges and issues are highlighted that require >>YOUR<< future research.
Bio
Jens Hofrichter, PhD, has 15 years of experience in integrated photonics R&D. He drove the development of the passive components, wafer-level test infrastructure [2] and monolithic laser integration of silicon photonics at IBM resulting in the 100G LR4 transceiver [3,4,6]. In 2015 he moved to ams AG, where he was setting up the fully automated optical product validation and optical wafer-level testing capabilities for medical and specialty products. He was in charge of the radiation hard monolithic photodiode development, which led to the development of the AS5950/AS5951 product family used in 16 and 32 slice computed tomography (CT) scanners [7,8]. He was leading the hybrid bonding development project resulting the world’s first non-Cu hybrid bonded imager [5]. After that, he was leading the cross-divisional camera team for the development of miniature cameras for AR applications. As co-inventor of the optical microphone, he appointed program manager of the related industrialization program in the ams-Osram group. In 2022 he moved to Spiden AG, where he is currently leading the optical and photonic integration activities for next-gen medical sensors. He is the (co)author of more than 30 patent families mainly in the field of photonic integration and imaging sensors and does not care about his H-factor, but bringing products to market and happy customers.
He holds a MSc degree in Electrical Engineering from RWTH Aachen for the world’s CMOS compatible synthesis method of graphene [1]. In 2013 he was awarded a PhD in Photonics from TU Eindhoven University of technology for the work on InP microdisk lasers. In 2021 he obtained the PMP project manager certification from the Project Management Institute (PMI).
Selected publications:
[1] Hofrichter et al., “Synthesis of Graphene on Silicon Dioxide by a Solid Carbon Source”, Nano Letters, 2010.
[2] Bolten et al., “CMOS compatible cost-efficient fabrication of SOI grating couplers”, MNE 2009.
[3] Assefa et al., “A 90nm CMOS Integrated Nano-Photonics Technology for 25Gbps WDM Optical Communications Applications”, IEDM 2012.
[4] Feilchenfeld et al., “An integrated silicon photonics technology for O-band datacom”, IEDM 2015.
[5] Jouve et al., “A reliable copper-free wafer level hybrid bonding technology for high-performance medical imaging sensors”, ECTC 2020.
Selected press releases:
[6] https://www-03.ibm.com/press/us/en/pressrelease/46839.wss
[7] https://ams-osram.com/news/press-releases/as5950-integrated-sensor-chip
[8] https://ams-osram.com/news/press-releases/as5951
In this talk we will discuss several photonic and optical products based on optical filtering. We will review the fundamental physics of filtering, basic building blocks and the existing technological implementations. An outlook is given towards future products. Open challenges and issues are highlighted that require >>YOUR<< future research.
Bio
Jens Hofrichter, PhD, has 15 years of experience in integrated photonics R&D. He drove the development of the passive components, wafer-level test infrastructure [2] and monolithic laser integration of silicon photonics at IBM resulting in the 100G LR4 transceiver [3,4,6]. In 2015 he moved to ams AG, where he was setting up the fully automated optical product validation and optical wafer-level testing capabilities for medical and specialty products. He was in charge of the radiation hard monolithic photodiode development, which led to the development of the AS5950/AS5951 product family used in 16 and 32 slice computed tomography (CT) scanners [7,8]. He was leading the hybrid bonding development project resulting the world’s first non-Cu hybrid bonded imager [5]. After that, he was leading the cross-divisional camera team for the development of miniature cameras for AR applications. As co-inventor of the optical microphone, he appointed program manager of the related industrialization program in the ams-Osram group. In 2022 he moved to Spiden AG, where he is currently leading the optical and photonic integration activities for next-gen medical sensors. He is the (co)author of more than 30 patent families mainly in the field of photonic integration and imaging sensors and does not care about his H-factor, but bringing products to market and happy customers.
He holds a MSc degree in Electrical Engineering from RWTH Aachen for the world’s CMOS compatible synthesis method of graphene [1]. In 2013 he was awarded a PhD in Photonics from TU Eindhoven University of technology for the work on InP microdisk lasers. In 2021 he obtained the PMP project manager certification from the Project Management Institute (PMI).
Selected publications:
[1] Hofrichter et al., “Synthesis of Graphene on Silicon Dioxide by a Solid Carbon Source”, Nano Letters, 2010.
[2] Bolten et al., “CMOS compatible cost-efficient fabrication of SOI grating couplers”, MNE 2009.
[3] Assefa et al., “A 90nm CMOS Integrated Nano-Photonics Technology for 25Gbps WDM Optical Communications Applications”, IEDM 2012.
[4] Feilchenfeld et al., “An integrated silicon photonics technology for O-band datacom”, IEDM 2015.
[5] Jouve et al., “A reliable copper-free wafer level hybrid bonding technology for high-performance medical imaging sensors”, ECTC 2020.
Selected press releases:
[6] https://www-03.ibm.com/press/us/en/pressrelease/46839.wss
[7] https://ams-osram.com/news/press-releases/as5950-integrated-sensor-chip
[8] https://ams-osram.com/news/press-releases/as5951
Practical information
- General public
- Free