2020The year marks the 100th anniversary of the founding of Harbin Institute of Technology, and alumni have expressed their blessings and longing for their alma mater through various means. On November 25, 2020, Zhang Zhiwei, General Manager of Avantes China in the Netherlands, and * Gou Honggang visited the Department of Optoelectronic Information Science and Technology at the School of Aerospace Science and Technology, Harbin Institute of Technology, to give back to their alma mater for their nurturing efforts. They had a discussion with the faculty and students of their alma mater. At the symposium, the director and department leaders of the Key Laboratory of Tunable (Gas) Laser Technology introduced the research progress and achievements of the school, and warmly welcomed Avantes Company and General Manager Zhang Zhiwei from the Netherlands; General Manager Zhang Zhiwei introduced the situation, products, and applications of Avantes Company in the Netherlands, and had in-depth exchanges with teachers and classmates. After the meeting, he visited the Key Laboratory of Tunable (Gas) Laser Technology.