Micromachined tethered silicon oscillator for an endomicroscopic Lissajous fiber scanner

Hyeon Cheol Park, Yeong Hyeon Seo, Kyungmin Hwang, Jae Kwan Lim, Seung Zhoo Yoon, Ki Hun Jeong

    Research output: Contribution to journalArticlepeer-review

    21 Citations (Scopus)


    This work reports micromachined tethered silicon oscillators (MTSOs) for endoscopic Lissajous fiber scanners. An MTSO comprises an offset silicon spring for stiffness modulation of a scanning fiber and additional mass for modulation of resonant scanning frequency in one body. MTSOs were assembled with a resonant fiber scanner and enhanced scanning reliability of the scanner by eliminating mechanical cross coupling. The fiber scanner with MTSOs was fully packaged as an endomicroscopic catheter and coupled with a conventional laparoscope and spectral domain OCT system. The endomicroscope was maneuvered with the integrated laparoscope and in vivo swine tissue OCT imaging was successfully demonstrated during open surgery. This new component serves as an important element inside an endoscopic Lissajous fiber scanner for early cancer detection or on-demand minimum lesional margin decision during noninvasive endoscopic biopsy.

    Original languageEnglish
    Pages (from-to)6675-6678
    Number of pages4
    JournalOptics Letters
    Issue number23
    Publication statusPublished - 2014 Dec 1

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics


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