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Chandan Kumar Jha

BTech, NIT Raipur


Fiber Bragg grating (FBG) based high accuracy and high-resolution flexure sensing glove for rehabilitation of stroke patients

My interest lies in developing diagnostic systems for healthcare using optical sensors. Currently, I am working on developing a fiber Bragg grating (FBG) based high accuracy and high-resolution flexure sensing glove for rehabilitation of stroke patients. Stroke has become a global epidemic with higher occurrence rates in developing countries like India. The situation is alarming as the disease previously associated with old age has started taking the toll on younger people. Stroke survivors are often left with residual disabilities like loss of hand activity making them reliant on others for day to day activities. Research has shown that the hand functions can be recovered by performing repetitive exercises but they are tedious and boring. The glove being developed along with virtual reality games will engage the patients in doing exercises and also assist doctors in assessing the recovery of the patients. I am also interested in recording human voice using FBGs for speech analysis.


The Biotechnology Industry Research Assistance Council (BIRAC) cash prize of INR 3 lakhs 

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1st prize in the “Dare to Dream DRDO Innovation Contest", Defence Research and Development Organization (DRDO).

He received the award in the challenge area of ‘Wearable Communication Technologies for Special Operations Soldiers’ for his project on a high-sensitivity optical contact microphone. Chandan is one of only 8 winners in the individual category who were selected from a pool of over 3000 contestants by a two-stage process comprising initial screening by a DRDO domain expert committee and a subsequent short-listing and ranking process by an independent expert committee. The award ceremony was held at DRDO Bhawan, New Delhi on October 15, 2019, on the occasion of India’s former President, Dr A P J Abdul Kalam’s birthday.

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Chandan receiving the award from Shri Rajnath Singh, the Hon'ble Raksha Mantri. Also present at the ceremony were the National Security Advisor, PMO, Shri Ajit Doval; Chairman DRDO, Dr G Satheesh Reddy; Chief of Army Staff, General Bipin Rawat; Chief of Naval Staff, Admiral Karambir Singh; and Chief of Air Staff, Air Chief Marshal RKS Bhadauria. The award includes a cash prize of INR. 5 lakhs, and mentorship and support from the DRDO to develop the product further.


  1. C K Jha, A L Chakraborty, “A system for monitoring hand and finger movements”, Indian Patent Office, Provisional Patent Application No.: 202021029035, date of filing 8 July 2020

Journal papers

  1. C K Jha, K Gajapure and A L Chakraborty, “Design and evaluation of an FBG sensor-based glove to simultaneously monitor flexure of ten finger joints”, in press IEEE Sensors Journal, 22 Dec 2020;

  2. C K Jha, S Agarwal, A L Chakraborty and C Shirpurkar, "An FBG-based sensing glove to measure dynamic finger flexure with angular resolution of 0.1 degree and for speeds up to 80 degrees/s", IEEE/OSA Journal of Lightwave Technology (Special Issue of OFS-26), Vol 37, Iss 18 , pp 4734 - 4740, Sep 15, 2019

  3. A Roy, A L Chakraborty and C K Jha, “Fiber Bragg grating interrogation using wavelength modulated tunable DFB lasers and a fiber-optic Mach-Zehnder interferometer", Applied Optics, Vol 56, No 17, 3562-3569 (2017),


Conference papers

  1. C K Jha, S S Bhattacharjee, J N Chauhan, A L Chakraborty, N V George, "Speech quality estimation of an FBG sensor-based contact microphone in noisy environment", accepted 27th International Conference on Optical Fibre Sensors (OFS 2020), 8-12 June 2020, Virginia, USA

  2. C K Jha and A L Chakraborty, "Real-time monitoring of ten fingers joints using a fiber Bragg grating-based sensor glove for virtual rehabilitation", IEEE Workshop of Recent Advances in Photonics (IEEE WRAP 2019), 13-14 Dec 2019, IIT Guwahati

  3. C K Jha, O Sinha, A L Chakraborty, “A fiber Bragg grating sensor-based wearable system to detect the pre-dicrotic and dicrotic notch in the arterial pulse pressure waveform”,  2019 IEEE 16th India Council International Conference (IEEE INDICON 2019), 13-15 Dec 2019, Rajkot, India, 10.1109/INDICON47234.2019.9030334

  4. C K Jha and A L Chakraborty, "A fiber Bragg grating strain sensor-based glove to accurately measure the bend angle of the finger flexed at the proximal inter-phalangeal joint", IEEE Sensors 2018 (A3L-C: Optical Fiber II Lecture session), 28-31 Oct 2018, New Delhi, India (oral presentation) doi: 10.1109/ICSENS.2018.8589898

  5. C K Jha, A L Chakraborty and S Agarwal, "A fiber Bragg grating-based sensing glove with a sensitivity of 18.45 pm/degree to accurately assess finger flexure", 26th International Conference on Optical Fibre Sensors, (OFS-26), 24-28 Sep 2018, Lausanne, Switzerland (oral presentation), SPIE OUTSTANDING RESULTS AWARD

  6. A Roy, A L Chakraborty, C K Jha, “Fiber Bragg grating interrogation using a wavelength modulated 1651 nm tunable distributed feedback laser and a fiber ring resonator for wearable biomedical sensors”, 25th International Conference on Optical Fiber Sensors (OFS-25), 25-28 April 2017, Korea

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