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 December 12, 2024)
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Relative Intensity Noise Suppression for Photonic Links
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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
Pub Type
Journals
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Keywords
optoelectronic oscillator (OEO), phase noise, relative intensity noise (RIN)
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Created September 14, 2008, Updated October 12, 2021