Prof. Leonid Karachinsky, PIFI visiting scholar, visited Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) on July 10 for academic exchange.

Prof. Leonid Karachinsky, Deputy Director of the Institute of Advanced Data Transfer Systems, ITMO University, is a winner of the Alexander von Humboldt Fellowship, Germany’s most prestigious prize for international researchers. His research direction is high-speed long-wavelength VCSELs fabricated by MBE and wafer fusion.

The professor gave an academic report entitled "Long-wavelength VCSELs fabricated by MBE and wafer fusion" in the Academic Exchange Center. The conference was co-hosted by Bimberg Chinese-German Center for Green Photonics and Jilin Provincial Optical Society. Dieter Bimberg, Director of the Center, chaired the conference.

Prof. Karachinsky, currently working with Bimberg Chinese-German Center for Green Photonics of CIOMP on high-speed long-wavelength semiconductor lasers, introduced the two sides’ innovative work on high-speed long-wavelength vertical cavity surface-emitting lasers (VCSEL) and detailed the results of their cooperation.

After previous collaborative research on high-speed long-wavelength VCSEL, the 1550nm VCSEL based on wafer fusion technology has now achieved a record transfer rate of 37Gb/s.

The professor answered many questions raised by faculty and students in the interactive session, and conducted in-depth discussions with them on relevant scientific issues.

This event expanded the international vision of CIOMP’s master and PhD students, and provided a excellent platform for faculty and students engaged in VCSEL research to exchange, learn and display results.

Prof. Karachinsky commended the CAS International Talent Program (PIFI) for building a good platform for cooperation between Chinese and foreign research institutions. The two sides pledged to take this visit as an opportunity to continuously promote international cooperation and exchange, promote innovation and development in related fields, and carry out continuous exchanges and cooperation in scientific research and student exchanges.