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Continuous photonic microwave true‐time delay using a side‐polished fiber Bragg grating with heating electrode
Author(s) -
Lee SangShin,
Chae HoDong,
Kim DoHwan,
Kim HyungJoon,
Kim KwangTaek
Publication year - 2004
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.20539
Subject(s) - fiber bragg grating , materials science , optics , phosfos , microwave , optoelectronics , photonics , electrode , photonic crystal fiber , optical fiber , plastic optical fiber , fiber optic sensor , telecommunications , physics , computer science , wavelength , quantum mechanics
A photonic microwave true‐time delay, based on a partially side‐polished fiber Bragg grating with heating electrode, is proposed and fabricated. It features continuous voltage‐controlled operation, which requires no mechanical perturbation and no moving parts. For a microwave signal carried over an optical signal, the time delay has been obtained by controlling the voltage applied to the electrode and thus adjusting its reflection positions from the fiber grating via the thermo‐optic effect. The achieved time delay is about 100 ps with electrical‐power consumption of 280 mW. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 44: 35–37, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20539