Highly Sensitive Sensors Based on Photonic Crystal Fiber Modal Interferometers
Figure 10
(a) Fringe spacing as a function of the length of PCF observed in interferometers operating in transmission mode. The inset shows the spectrum of an interferometer with mm. (b) Period as a function of observed in devices operating in reflection mode. The inset shows the spectrum of a device with mm. In both cases the fringe spacing was measured at 1550 nm.
