Multiband microwave photonic filter based on chirp fiber Bragg grating
In the proposed work, multiband reflection characteristics of CFBG have explored for different apodization. The multiband reflection bandwidth has a linear delay and phase response with respect to the operating wavelength. It is analogous to a linear time invariant system forming a microwave photonic filter with multiple pass bands. Presence of ripples in reflection and delay characteristics of CFBG is investigated with various apodization function. The proposed microwave photonic filter is useful for optical processing of light wave. Finally, the proposed MPF is used along with delay elements for the pulse shaping of optical signal. Generation of a triangular shaped waveform is proposed for different length of dispersive fiber, where dispersive element acts as a delay element.
Indian Institute of Technology (Indian School of Mines), Dhanbad (India)
Sanjeev Kumar Raghuwanshi received the Bachelors degree in electronic and instrumentation engineering from S.G.S.I.T.S. Indore, Madhya Pradesh, India and the Masters degree in Solid State Technology from Indian Institute of Technology, Kharagpur, in Aug. 1999 and Jan. 2002, respectively. Since July 2009, he has been obtained PhD degree in the field of optics from the Department of Electrical Communication Engineering of Indian Institute of Science, Bangalore India. He is an Associate Professor in Electronics Engineering Department of Indian Institute of Technology (ISM) Dhanbad, India. He was the Post-doctoral Research Fellow during 2014-2015 at Instrumentation and Sensor Division, School of Engineering and Mathematical Sciences, City University London, Northampton Square, London. He has published more than 100 peer reviewed and indexed International SCI Journal papers in the last 10 years. He has been published 4 books on contemporary optical fiber domain and 4 Indian patents .