All-optical serrodyne frequency shifter

Kim Fook Lee, G. S. Kanter*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We describe and demonstrate a method to induce a single-sideband serrodyne-like optical frequency shift in an all-fiber device. The time-varying phase-shift is generated by cross-phase modulation in a nonlinear fiber. Unlike electro-optic based serrodyne methods, which require a high-fidelity and high-bandwidth analog electrical ramp modulation signal, the proposed optical method uses a simple pulsed pump and can be made simultaneously both low-loss and polarization-independent. We demonstrate the technique by shifting a 1550 nm optical signal 150 MHz in a 1.5 dB insertion-loss polarization-independent frequency shifter and show a pathway to multi-GHz shifting frequencies.

Original languageEnglish (US)
Pages (from-to)26608-26617
Number of pages10
JournalOptics Express
Issue number17
StatePublished - Aug 16 2021
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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