Jeong, Ji Ho Chung, Kyu Hwang Lee, Sang Bae Song, Kwang Yong Jeong, Je-Myung Lee, Kwanil 2024-01-20T10:33:26Z 2024-01-20T10:33:26Z 2021-09-05 2014-01-27 1094-4087 https://pubs.kist.re.kr/handle/201004/127208 5 We experimentally demonstrate a linearly configured Brillouin optical correlation domain analysis (BOCDA) system enhanced by a differential measurement scheme. On-off control of the pump phase modulation with an intentional loss at the end of a fiber under test is applied for the acquisition of a Brillouin gain spectrum. This application leads to a four-fold enhancement of the spatial resolution and doubling of the measurement range in comparison with the former system under the same modulation parameters. (C) 2014 Optical Society of America English OPTICAL SOC AMER CORRELATION DOMAIN ANALYSIS OPTICAL-FIBER BRILLOUIN SENSOR Linearly configured BOCDA system using a differential measurement scheme Article 10.1364/OE.22.001467 1 OPTICS EXPRESS, v.22, no.2, pp.1467 - 1473 OPTICS EXPRESS 22 2 1467 1473 scie scopus 000330585100028 2-s2.0-84893422335 Optics Optics Article CORRELATION DOMAIN ANALYSIS OPTICAL-FIBER BRILLOUIN SENSOR