Measurement of small phase shifts using a single-mode optical-fiber interferometer.
Periodic phase changes in the 10(-6) -rad region have been induced and detected in a single-mode all-fiber Mach- Zehnder interferometer by stretching the fiber with a piezoelectric cylinder driven at frequencies between 40 and 10(4) Hz.
Jackson
D A
DA
Naval Research Laboratory, Washington, DC 20375, USA.
Dandridge
A
A
Sheem
S K
SK