Title :
Common path interferometer based on ball lens probe and silver coated mirror
Author :
Joo Beom Eom ; Younghee Ko ; In Hee Shin ; Jae Seok Park ; Hyung Joo Park ; Byeong-il Lee ; Jun-Seok Ha ; Hangju Ko
Author_Institution :
Korea Photonics Technol. Inst., Gwangju, South Korea
Abstract :
A common path interferometer has been made with a ball lens packaged in a metal cylinder, silver coated mirror, and lucent type connector (LC) fiber patch cord. By simply placing mirror and a ball lens directly in front of a fiber patch cord, a compact and potentially disposable sensing probe for optical sensor could be implemented. A working distance of up to 1.6 mm and transverse resolution of 14 μm were achieved. With sensing probe, measurement of the refractive index was implemented.
Keywords :
fibre optic sensors; lenses; light interferometers; mirrors; optical fibre couplers; optical films; refractive index measurement; silver; ball lens probe; common path interferometer; disposable sensing probe; distance 1.6 mm; lucent type connector fiber patch cord; optical sensor; refractive index measurement; silver coated mirror; transverse resolution; Lenses; Mirrors; Optical fiber sensors; Optical fibers; Optical interferometry; Optical variables measurement; Probes;
Conference_Titel :
Optical Fibre Technology, 2014 OptoElectronics and Communication Conference and Australian Conference on
Conference_Location :
Melbourne, VIC
