19 February 1993 Tunable fiber frequency shifter utilizing an all-fiber ring resonator
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Abstract
A new form of all-fiber frequency shifter is presented based on the use of a ring resonator as a high resolution filter illuminated by a phase modulated input beam. The input phase modulation results in the generation of frequency components which are then filtered by the ring resonator. The cavity length is 'locked' to one frequency component and a fraction of that signal is removed from the cavity using an optical tap. The configuration offers a frequency tunable output which can provide complete suppression of unshifted light and very high suppression of unwanted sidebands through judicious choice of modulation index. A maximum frequency conversion efficiency of 17% has been measured with sidebands at -40 dB.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kyriacos Kalli, David A. Jackson, "Tunable fiber frequency shifter utilizing an all-fiber ring resonator", Proc. SPIE 1792, Components for Fiber Optic Applications VII, (19 February 1993); doi: 10.1117/12.141201; https://doi.org/10.1117/12.141201
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