A 100 km remote PCF micro-displacement sensor multiplexing system based on optical add-drop multiplexers (OADMs) has been experimentally demonstrated. The PCF sensors are placed in an OADM bus structure which is illuminated by a home-made tunable fiber optic ring laser. Four micro-displacement photonic crystal fiber (PCF) sensors based on a suspended core fiber inserted into a Sagnac loop filter are multiplexed. Furthermore, being the first proposal to solve this issue in PCF sensor multiplexing structures, these sensors can be referenced with an extra wavelength.
Remote PCF-based Multiplexing by using optical add-drop multiplexers / M. Bravo; A. Candiani; A. Cucinotta; S. Selleri; M. Lopez-Amo; J. Kobelke; K. Schuster. - In: OPTICS AND LASER TECHNOLOGY. - ISSN 0030-3992. - 57(2014), pp. 9-11. [10.1016/j.optlastec.2013.09.032]
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