TY - JOUR
T1 - Wideband fiber-interferometer stabilization with variable phase
AU - Rosenthal, Amir
AU - Kellnberger, Stephan
AU - Sergiadis, George
AU - Ntziachristos, Vasilis
PY - 2012
Y1 - 2012
N2 - We report on a robust scheme for wideband variable-phase interferometer stabilization based on active modulation. In contrast to previous schemes, the correction signal is generated without using second harmonics, whose low amplitude often requires employing narrowband lock-in amplifiers. Resonances in the element modulating the phase are attenuated to enable high gain without high-frequency oscillations. Operation over a 3-kHz bandwidth is demonstrated.
AB - We report on a robust scheme for wideband variable-phase interferometer stabilization based on active modulation. In contrast to previous schemes, the correction signal is generated without using second harmonics, whose low amplitude often requires employing narrowband lock-in amplifiers. Resonances in the element modulating the phase are attenuated to enable high gain without high-frequency oscillations. Operation over a 3-kHz bandwidth is demonstrated.
KW - Feedback circuits
KW - interferometry
KW - optical fibers
UR - http://www.scopus.com/inward/record.url?scp=84864930764&partnerID=8YFLogxK
U2 - 10.1109/LPT.2012.2207099
DO - 10.1109/LPT.2012.2207099
M3 - Article
AN - SCOPUS:84864930764
SN - 1041-1135
VL - 24
SP - 1499
EP - 1501
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
IS - 17
M1 - 6257460
ER -