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Relative Intensity Noise Suppression for Photonic Links

Published

Author(s)

Craig Nelson, Archita Hati, David A. Howe

Abstract

We propose and experimentally demonstrate a novel technique to reduce laser relative intensity noise (RIN).  A RIN suppression servo is usually implemented by inserting an intensity modulator in the optical path and controlling measured light intensity with a closed loop servo system.  We propose utilizing the intensity modulator already present in a photonic link to perform the task of RIN suppression as well as encoding the optical signal with the microwave sub-carrier. This technique provides suppression of 10 to 50 dB of laser RIN over a bandwidth of 10 MHz. Furthermore, we implement this technique in an optoelectronic oscillator (OEO), significantly improving its phase-noise performance due to the reduced effect of RIN on the phase noise of the oscillator.
Citation
IEEE Photonics Technology Letters
Volume
20
Issue
18

Keywords

optoelectronic oscillator (OEO), phase noise, relative intensity noise (RIN)

Citation

Nelson, C. , Hati, A. and Howe, D. (2008), Relative Intensity Noise Suppression for Photonic Links, IEEE Photonics Technology Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=842469 (Accessed May 23, 2022)
Created September 14, 2008, Updated October 12, 2021