Kim, CS Han, YG Kang, JU Choi, B Nelson, JS 2024-01-21T06:05:48Z 2024-01-21T06:05:48Z 2021-09-04 2004-11-29 1094-4087 https://pubs.kist.re.kr/handle/201004/137047 Novel multi-wavelength switching filters based on cascaded long-period fiber gratings and polarization-maintaining fiber in a Sagnac loop configuration are proposed and experimentally demonstrated. The rapid wavelength switching is achieved by an electro-optic polarization controller. The device is independent of the polarization state of the input light due to the bi-directional polarization compensation of the Sagnac loop interferometer although the polarization state of the optical wave filter is rapidly switched by the electro-optic modulator in the loop. The proposed device can be useful for applications to all-channel gating and odd/even-channel switching devices with fine channel selectivity and high-speed response. (C) 2004 Optical Society of America. English OPTICAL SOC AMER WAVELENGTH FILTER LASER Polarization-insensitive multi-wavelength switching based on polarization-selective long-period fiber gratings Article 10.1364/OPEX.12.006082 1 OPTICS EXPRESS, v.12, no.24, pp.6082 - 6087 OPTICS EXPRESS 12 24 6082 6087 scie scopus 000225459700030 2-s2.0-10444275094 Optics Optics Article WAVELENGTH FILTER LASER Optical switching