Lim, Sun Do Lee, Sun-Goo Lee, Kwanil Lee, Sang Bae 2024-01-20T19:00:28Z 2024-01-20T19:00:28Z 2021-09-05 2010-08 0021-4922 https://pubs.kist.re.kr/handle/201004/131213 This paper deals with fabrication of an optical microfiber and demonstration of a Sagnac loop interferometer constructed with it. An optical microfiber with a diameter similar to 2 mu m and loss similar to 0 03 dB/mm is manufactured by tapering a conventional single-mode fiber using a flame-brushing technique A Sagnac interferometer is assembled by twisting the fabricated microfiber into a loop The intertwisted section of the loop functions as a directional coupler whose coupling ratio is tunable by changing the twist rate. Transmission characteristics of the interferometer may allow us to use it as a potential photonic device such as a linear edge filter, an optical variable attenuator, or a gain flattening filter. (C) 2010 The Japan Society of Applied Physics English JAPAN SOC APPLIED PHYSICS SINGLE-MODE FIBER SILICA NANOWIRES RESONATOR DEVICES TAPERS A Tunable-Transmission Sagnac Interferometer Using an Optical Microfiber Article 10.1143/JJAP.49.082502 1 JAPANESE JOURNAL OF APPLIED PHYSICS, v.49, no.8 JAPANESE JOURNAL OF APPLIED PHYSICS 49 8 scie scopus 000281513400038 2-s2.0-77957862594 Physics, Applied Physics Article SINGLE-MODE FIBER SILICA NANOWIRES RESONATOR DEVICES TAPERS