Passive Path Imbalance Measurement in Fiber Optic Interferometer using Homodyne PGC Scheme

Shubham Mirg, Pradeep K.

Abstract

We demonstrate a passive measurement technique for interferometer path imbalance using homodyne PGC. A 20.8 kHz frequency modulated optical source is employed to interrogate an unbalanced Michelson interferometer. The spectrum of the received photocurrent is then recorded for various frequency deviation values. The variation in harmonic peak powers enables us to determine path imbalances. Different path imbalances are estimated and verified against the pre-calibrated values. The measurement scheme proposed requires no feedback and can be employed to passively measure path imbalances in interferometer sensor arrays already laid out in the field.

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Paper Citation


in Harvard Style

Mirg S. and K. P. (2019). Passive Path Imbalance Measurement in Fiber Optic Interferometer using Homodyne PGC Scheme.In Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS, ISBN 978-989-758-364-3, pages 73-78. DOI: 10.5220/0007407500730078


in Bibtex Style

@conference{photoptics19,
author={Shubham Mirg and Pradeep K.},
title={Passive Path Imbalance Measurement in Fiber Optic Interferometer using Homodyne PGC Scheme},
booktitle={Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,},
year={2019},
pages={73-78},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007407500730078},
isbn={978-989-758-364-3},
}


in EndNote Style

TY - CONF

JO - Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,
TI - Passive Path Imbalance Measurement in Fiber Optic Interferometer using Homodyne PGC Scheme
SN - 978-989-758-364-3
AU - Mirg S.
AU - K. P.
PY - 2019
SP - 73
EP - 78
DO - 10.5220/0007407500730078