Stabilized microwave-frequency transfer using optical phase sensing and actuation

Sascha Schediwy, David Gozzard, Simon Stobie, J.A. Malan, Keith Grainge

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)
286 Downloads (Pure)


We present a stabilized microwave-frequency transfer technique that is based on optical phase sensing and optical phase actuation. This technique shares several attributes with optical-frequency transfer and, therefore, exhibits several advantages over other microwave-frequency transfer techniques. We demonstrated the stabilized transfer of an 8000 MHz microwave-frequency signal over a 166 km metropolitan optical fiber network, achieving a fractional frequency stability of 6.8 × 10−14 Hz∕Hz at 1 s integration and 5.0 × 10−16 Hz∕Hz at 1.6 × 104 s. This technique is being considered for use on the Square Kilometre Array SKA1-mid radio telescope.
Original languageEnglish
Article numberDoc. ID 286912
Pages (from-to)1648-1651
Number of pages4
JournalOptics Letters
Issue number9
Publication statusPublished - 1 May 2017


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