Location:Training / Hot Applications / Wireless Communication / Modern Communication Technology Beijing University of Posts and Telecommunications (Ji Hong) / Part 4 Lesson 8 Semiconductor lasers, light-emitting diodes and optical transmitters

The inheritance and progress of human civilization and society are inseparable from the development of communication technology and information networks. How is information acquisition and transfer achieved? How do people in different countries and regions share information? Why can a small mobile phone transmit different applications such as voice, image and video? What changes will the evolution of communication technology bring to our lives? Welcome to follow this course and embark on a journey of exploration into the mysterious world of communication.