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

fYear

2014

fDate

6-10 July 2014

Firstpage

470

Lastpage

471

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fibre Technology, 2014 OptoElectronics and Communication Conference and Australian Conference on

Conference_Location

Melbourne, VIC

Type

conf

Filename

6888149