Cancellation of Vibration-Induced Phase Noise in Optical Fibers

Published

November 15, 2008

Author(s)

Archita Hati, Craig W. Nelson, Jennifer A. Taylor, David A. Howe

Abstract

Vibration causes mechanical distortions in fiber-optic transmission lines that induce phase fluctuations. A scheme is described which enables electronic cancellation of vibration-induced phase noise in an optical fiber wound on a spool. We report 20 dB or more cancellation of vibration-induced noise using feed-forward noise control . The scheme is also applied to an optoelectronic oscillator (OEO). The OEO has emerged as an excellent low-noise source that rivals the best electronic (RF) oscillators over broad offset frequencies. However, close-to-carrier spectral purity of an OEO is mostly degraded by the vibration-induced phase fluctuations in optical fibers when the temperature is held constant. Implementation of feed-forward noise control in fiber in an OEO has shown almost an order of magnitude improvement in the vibration sensitivity of the oscillator.

Citation

IEEE Photonics Technology Letters

Volume

20

Issue

22

Pub Type

Journals

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Keywords

optical fiber, optoelectronic oscillator (OEO), phase noise, vibration sensitivity

Citation

Hati, A. , Nelson, C. , Taylor, J. and Howe, D. (2008), Cancellation of Vibration-Induced Phase Noise in Optical Fibers, IEEE Photonics Technology Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=842475 (Accessed November 23, 2024)