title: A miniature reflective micro-force sensor based on a microfiber coupler.
abstract: A compact highly sensitive microfiber coupler based reflective micro-force sensor is presented. The device is fabricated by fusing two twisted optical fibers and then connecting two of the pigtails to form a Sagnac loop. The sensor has a high force sensitivity of ~3754 nm/N which is three orders of magnitude larger than traditional optical fiber force sensors, and a low detection limit of ~1.6 µN. The good repeatability is also shown in this paper.
authors.forename: Ye
authors.initials: Y
authors.lastname: Chen
authors.forename: Shao-cheng
authors.initials: SC
authors.lastname: Yan
authors.forename: Xin
authors.initials: X
authors.lastname: Zheng
authors.forename: Fei
authors.initials: F
authors.lastname: Xu
authors.forename: Yan-qing
authors.initials: YQ
authors.lastname: Lu
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D008904:Miniaturization; D010783:Photometry / Q000295:instrumentation*; D013314:Stress, Mechanical; D014160:Transducers, Pressure