Abstract:
The Conference on Laser and Electro-Optics (CLEO) was held in Long Beach, United States, on May 4, 2025. Doctoral student Jinwei Su from the research group attended the conference and engaged in on-site academic exchanges.
From May 6 to May 10, 2025, doctoral student Jinwei Su traveled to Long Beach, USA, to participate in the Conference on Laser and Electro-Optics (CLEO), one of the most influential academic conferences in the field of lasers and optoelectronic devices worldwide. The conference brought together thousands of experts from academia and industry to exchange ideas on cutting-edge areas such as laser technology, optoelectronic devices, and quantum optics. During the event, Jinwei Su systematically reviewed the latest developments in the field of integrated optoelectronics through oral presentations, academic exchanges, poster sessions, and industrial exhibitions, exchanging perspectives with domestic and international research teams based on his research focus.
Academic Presentation: Micro-Transfer-Printed High-Speed Modulator
In the "Postdeadline Paper V" session on May 8, Jinwei Su delivered a 12-minute oral presentation titled "Low-Loss and High-Speed Heterogeneous Lithium Tantalate-on-Si₃N₄ Modulator via Micro-Transfer Printing." The presentation focused on the innovative application of micro-transfer printing technology in the fabrication of high-speed modulator chips, proposing a solution based on a heterogeneously integrated lithium tantalate-on-silicon nitride photonic platform. This platform achieves an electro-optic bandwidth of 67 GHz and a data rate of 250 Gbps, while remaining compatible with ultra-low-loss silicon nitride commercial foundry platforms. Experimental results indicate that this technology holds promise for significantly reducing energy consumption and latency in data center optical interconnects and edge computing scenarios. Following the presentation, several scholars engaged in discussions regarding technical scalability and process compatibility. Some suggested further exploration of co-optimization with co-packaged optics (CPO) architectures, while industry representatives showed interest in its feasibility for mass production. This presentation not only validated the academic value of the technical approach but also laid the groundwork for subsequent industry-academia-research collaboration.
Cutting-Edge Academic Trends: Applications of Micro-Transfer Printing Heterogeneous Integration
During the conference, Jinwei Su closely followed前沿research on micro-transfer printing heterogeneous integration technology. In specialized sessions on high-speed modulators, the Ghent team presented an optimized design for high-performance lithium tantalate-on-silicon modulators, achieving data rates exceeding 300 Gbps suitable for short-reach data center applications. Furthermore, multiple presentations focused on the combination of advanced modulation formats (e.g., PAM4, QAM) with novel materials (e.g., thin-film lithium niobate, thin-film lithium tantalate), revealing potential future breakthroughs in modulator bandwidth, linearity, and power consumption.
This participation clarified the core value of integrated optoelectronics technology in the "computing era." We look forward to promoting the transformation of academic achievements into industrial applications through continuous innovation.
