Dr. Jitendra Kumar Profile

Dr. Jitendra Kumar

at Raja Ramanna Centre for Advanced Technology

SPIE Involvement:

Author

Publications (5)

SPIE Journal Paper | 31 May 2019

Effect of gamma radiation dose on the performance of negative-index fiber Bragg gratings

Jitendra Kumar, Om Prakash, Sudhir Kumar, Sudhir K. Dixit, Yatender Bhardwaj, Shankar Nakhe

OE, Vol. 58, Issue 05, 057108, (May 2019) https://doi.org/10.1117/12.10.1117/1.OE.58.5.057108

KEYWORDS: Fiber Bragg gratings, Refractive index, Radiation effects, Gamma radiation, Temperature metrology, Ultraviolet radiation, Modulation, Reflectivity, Sensors, Annealing

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SPIE Journal Paper | 6 September 2016

Distributed fiber Bragg grating sensor for multipoint temperature monitoring up to 500°C in high-electromagnetic interference environment

Jitendra Kumar, Om Prakash, Sachin Kumar Agrawal, Ramakanta Mahakud, Anagha Mokhariwale, Sudhir Dixit, Shankar Nakhe

OE, Vol. 55, Issue 09, 090502, (September 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.9.090502

KEYWORDS: Fiber Bragg gratings, Temperature metrology, Sensors, Environmental sensing, Temperature sensors, Environmental monitoring, Electromagnetic coupling, Ultraviolet radiation, Laser development, Fiber lasers

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SPIE Journal Paper | 6 November 2014

On the role of Ge-doping concentration in the refractive index rollover and thermal annealing characteristics of type IIa fiber Bragg gratings

Jitendra Kumar, Om Prakash, Ramakant Mahakud, Sachin Kumar Agrawal, Sudhir Dixit, Shankar Nakhe

OE, Vol. 53, Issue 11, 117103, (November 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.11.117103

KEYWORDS: Fiber Bragg gratings, Refractive index, Ultraviolet radiation, Reflectivity, Modulation, Annealing, Temperature metrology, Absorption, Optical fibers, Optical engineering

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SPIE Journal Paper | 15 July 2013

Analysis of ultraviolet fringes contrast on first and second order Fiber Bragg gratings written by prism interferometers

Ramakant Mahakud, Jitendra Kumar, Om Prakash, Sudhir Dixit

OE, Vol. 52, Issue 07, 076114, (July 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.7.076114

KEYWORDS: Fiber Bragg gratings, Ultraviolet radiation, Prisms, Refractive index, Interferometers, Reflectivity, Modulation, Wavefronts, Optical simulations, Optical engineering

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SPIE Journal Paper | 7 May 2013

Study on hydrofluoric acid-based clad etching and chemical sensing characteristics of fiber Bragg gratings of different reflectivity fabricated under different UV exposure times

Jitendra Kumar, Ramakant Mahakud, Om Prakash, Sudhir Dixit

OE, Vol. 52, Issue 05, 054402, (May 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.5.054402

KEYWORDS: Fiber Bragg gratings, Etching, Cladding, Refractive index, Reflectivity, Ultraviolet radiation, Biological and chemical sensing, Bioalcohols, Silica, Wet etching

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