Micro Fabry-Perot interferometers in silica fibers machined by femtosecond laser

Yun Jiang Rao, Ming Deng, De Wen Duan, Xiao Chen Yang, Tao Zhu, Guang Hua Cheng

Research output: Contribution to journalArticlepeer-review

279 Scopus citations

Abstract

Micro Fabry-Perot (F-P) interferometers (MFPIs) are machined in a single-mode fiber (SMF) and a photonic crystal fiber (PCF) by using a near-infrared femtosecond laser, respectively. The strain and temperature characteristics of the two MFPIs with an identical cavity length are investigated and the experimental results show that the strain sensitivity of the PCF-based MFPI is smaller than that of the SMF-based MFPI due to their different waveguide structures, while the two MFPIs have close temperature sensitivities which are much smaller than that of an in-line SMF etalon sensor reported previously. These MFPIs in silica fibers are compact, stable, inexpensive, capable for mass-production and easy fabrication, offering great potentials for wide sensing applications.

Original languageEnglish
Pages (from-to)14123-14128
Number of pages6
JournalOptics Express
Volume15
Issue number21
DOIs
StatePublished - 17 Oct 2007
Externally publishedYes

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