Compact Hexagonal Liquid Core PCF Package Using a Hollow Optical Fiber

Jihyun Hwang, Jiyoung Park, Tavakol Nazari Baresari, Seung Ryong Han, Young Min Jhon, Kyunghwan Oh

Research output: Contribution to journalArticlepeer-review


We proposed and demonstrated a novel method to package liquid-core hexagonal photonic crystal fibers (PCFs) by utilizing a hollow optical fiber (HOF) not only as a liquid delivery tube but also as a light launching pedestal. Compact all-fiber packaging with single mode fiber input and output was experimentally achieved. Various configurations of liquid core PCFs were demonstrated by controlling the inner diameter of HOF and offsets. Based on numerical analyses and light launching experiments, we confirmed that this method could substantially enhance the light-liquid interaction efficiency, structurally prevent liquid evaporation within PCF, and providing a new versatile liquid core PCF device platform.

Original languageEnglish
Pages (from-to)736-739
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number8
Publication statusPublished - 2018 Apr 15

Bibliographical note

Funding Information:
Manuscript received July 25, 2017; revised January 17, 2018; accepted March 2, 2018. Date of publication March 12, 2018; date of current version March 26, 2018. This work was supported in part by the Institute of Physics and Applied Physics, Yonsei University, in part by the ICT Research and Development Program of MSIP/IITP under Grant 2014-044-014-002, in part by the Nano Material Technology Development Program through the MSIP under Grant NRF-2012M3A7B4049800, and in part by the Industrial Strategic Technology Development Program through the Ministry of Trade, Industry and Energy, South Korea, under Grant 10048690. (Corresponding author: Kyunghwan Oh.) J. Hwang, T. N. Baresari, S.-R. Han, and K. Oh are with the Department of Physics, Yonsei University, Seoul 03722, South Korea (e-mail:;; omniwave@naver. com;

Publisher Copyright:
© 2012 IEEE.

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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