[18p-A35-1~10] 3.13 Optical control devices and optical fibers

3:15 PM - 3:30 PM JST(6:15 AM - 6:30 AM UTC)

[18p-A35-7] Application of Polarization-Maintaining EDFσ Laser with Cascaded-Chirped LPG to Intensity-Based Sensor

〇Satoshi Tanaka¹, Makoto Okano¹, Atsushi Wada¹ (1.Natl. Defense Acad.)

Keywords:

Optical Fiber Sensor,Optical Fiber Laser,Long Period Fiber Grating

We have proposed σ-cavity EDF laser (EDFσL) -based laser-sensors using a double-pass cascade chirped LPG (C-CLPG) and improved their performances. In addition, we have previously developed a PM-EDFσL using a polarization-maintaining EDFA (PM-EDFA) and realized a more stable and accurate laser-type sensor. In this study, we have demonstrated an intensity-modulated sensing system utilizing the stable characteristics of PM-EDFσL.