Kim Gil Hwan Kim Sun Duck Lee Kwan Il 이경식 Lee, Sang Bae 2024-01-13T00:06:39Z 2024-01-13T00:06:39Z 2021-09-29 https://pubs.kist.re.kr/handle/201004/100214 English Highly-Birefringent Tunable Long-Period Fiber Gratings in Hollow-Core Photonic Bandgap Fiber by Use of Mechanical Pressure Conference 1 OSA / OFC/NFOEC 2010 OSA / OFC/NFOEC 2010 US