Picometer displacement sensing using the ultrahigh-order modes in a submillimeter scale optical waveguide | Zendy

Fan Chen | Zendy; Zhuangqi Cao | Zendy; Qishun Shen | Zendy; Xiaoxu Deng | Zendy; Biming Duan | Zendy; Wen Yuan | Zendy; Ming-huang Sang | Zendy; Shengqian Wang | Zendy

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Picometer displacement sensing using the ultrahigh-order modes in a submillimeter scale optical waveguide

Author(s) -

Fan Chen,

Zhuangqi Cao,

Qishun Shen,

Xiaoxu Deng,

Biming Duan,

Wen Yuan,

Ming-huang Sang,

Shengqian Wang

Publication year - 2005

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/opex.13.010061

Subject(s) - optics , displacement (psychology) , cladding (metalworking) , interferometry , waveguide , materials science , physics , psychology , metallurgy , psychotherapist

An improved scheme for displacement measurement using the ultrahigh-order guided modes in a symmetrical metal-cladding optical waveguide is proposed. Based on this idea together with the lock-in amplification technique, a sensor with a stable displacement resolution of 3.3 pm is experimentally demonstrated without any complicated servo system.

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