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 journalArticle

16 Citations (Scopus)

Abstract

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
Volume39
Issue number23
DOIs
Publication statusPublished - 2014 Dec 1

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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