The field of the seminar held on 29th October 2019 at CIU auditorium was Photonics. The keynote speaker was Meher Niger, Lecturer, SSE, CIU. The chair of the seminar was Professor Dr. Md. Rezaul Huque Khan, Faculty advisor, SSE, CIU. Specifically, the seminar emphasized on Photonic Crystal Fiber Sensor. The speaker tried to present the various structures of PCF, their simulation process and applications in the modern era. The students were also encouraged to design and simulate some structures for better results.