Photonic Crystal Fiber Sensors for Strain and Temperature Measurement

Figure 1

Scanning electron micrographs of different PCF cross-sections. (a) a large-mode-area air-silica endlessly single-mode PCF, (b) an air-silica highly birefringent PCF, (c) an air-silica air-core PBF. These PCFs are from Crystal Fiber A/S [6] (d) an all-solid PBF [5].

(a)

(b)

(c)

(d)