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Dr. Vijay Janyani

Dr. Vijay  Janyani

Associate Professor
Malaviya National Institute of Technology

Department of Electronics and Communication Engineering
J.L.N. Road

Jaipur  302017, Rajasthan

tel: +91-141-2713464
E-mail: vjanyani.ece@mnit.ac.in
Web: www.mnit.ac.in/dept_ece/preprofile.php

Area of Expertise

Optical Fiber Communication, Photonic Devices, Passive Optical Networks


Dr. Vijay Janyani (PhD (Engg) from University of Nottingham, UK under Commonwealth Scholarship Plan) leads research on optical fiber communication and photonics, passive optical networks, and photonic crystal based solar photo-voltaics. He has over 120 research papers and books chapters to his name in various reputed research journals and books. The current focus of his research group is on energy efficiency in passive optical networks and novel mechanisms for nanomanipulation of light (such as slow light generation and manipulation, bandgap engineering) for applications like highly efficient solar cells, photonic crystal fibers and waveguides. Dr Janyani has successfully completed various national and international sponsored research projects in the area of photonics, and has extensively travelled on research / academic assignments and to deliver invited talks to various countries such as USA, UK, Canada, Belgium, France, Japan, Ukraine, Czech Republic, Denmark, Hong Kong, Thailand, Poland etc. He has received many professional awards, such as the Derrick Kirk Prize of University of Nottingham for excellence in research, the Career Award for Young Teachers of AICTE New Delhi awarded to young professionals who have achieved excellence in their area of specialization, and MHRD Government of India Faculty Secondment (Visiting Faculty) to Asian Institute of Technology (AIT) Bangkok. He has been Host Scientist for Visiting Fellow under C V Raman International Fellowship for African Researchers, administered by Ministry of Science and Technology, Government of India. He was also awarded Travel Support Grant by DST, New Delhi, Govt of India to deliver Keynote Speech at an International Conference held in Paris, and a Travel Support Grant by Science and Engineering Research Board (SERB), DST, New Delhi, Govt of India to participate in the International Conference Frontiers in Optics (FiO/LS) held in California, USA. He has been a Visiting Professor, High School of Engineering of Tunis (ENIT)-Syscom Laboratory.

Dr Janyani is a Senior Member of IEEE (USA), Fellow of IETE (India), Member of SPIE (USA) and OSA (USA), and Life Fellow of OSI (India).

Lecture Title(s)

Generation and Manipulation of Slow light and its applications in Photonic Devices
Photonic crystals, which represent periodic modulations of dielectric constant of a material on the scale of wavelength of light, exhibit interesting properties which can be used to harness light in suitably engineered structures. One such application is slow light, which enhances the light-material interaction while propagating through a waveguide supporting slow light. This results in a variety of interesting applications, such as smaller sized photonic devices, and dispersion compensation. This presentation covers the introduction and application examples of such devices.

Gigabit Passive Optical Networks
Due to the ever increasing bandwidth demand, FTTH technologies are gaining importance and attention. However, due to increased use of information technology, the energy consumption has been increasing rapidly, reaching to alarming limits. Passive Optical Networks provide a potential technology with high energy efficiency, low cost and simpler management. This lecture covers the fundamentals of GPON, TDM/WDM/Hybrid issues, and issues addressing energy efficiency in such networks.

Solar Cells based on Photonic Crystals for High Efficiency
Solar cells, particularly thin film solar cells, find limited use because of inherently low conversion efficiencies. However, the efficiency can be significantly improved by incorporating suitably band gap-engineered photonic crystal materials in the solar cell design. This lecture presents schemes and results of such solar cells exhibiting significant improvement in the efficiency.

Optical Fiber Communication: Basic Principles
This lecture covers fundamentals and principles of optical fiber communication, including dispersion and its management. This lecture is mainly targeted to young undergraduate students.

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