Cancellation of Vibration-Induced Phase Noise in Optical Fibers
Archita Hati, Craig W. Nelson, Jennifer A. Taylor, David A. Howe
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.
, Nelson, C.
, Taylor, J.
and Howe, D.
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 May 17, 2022)