We demonstrate the performance of a fiber Fabry-Perot (FFP) interferometer and show how the finesse of the interferometer can be adjusted by changing the operating wavelength. These sensors are extraordinarily sensitive and might have uses for high-density wavelength division multiplexing and high-resolution fiber sensor applications. We cannot resolve the transmission peaks using an optical spectrum analyzer and consequently use a tunable laser diode to study them.
© 2004 Society of Photo-Optical Instrumentation Engineers
Peter Betts and Jeffrey A. Davis
"Bragg grating Fabry-Perot interferometer with variable finesse", Opt. Eng. 43(5), 1258-1259 (May 01, 2004). ; http://dx.doi.org/10.1117/1.1666871