TY - GEN
T1 - Frequency locking of an optical cavity using LQG integral control
AU - Hassen, Sayed
AU - Zahiruddeen, Sayed
AU - Huntington, Elanor
AU - James, Matthew R.
AU - Petersen, Ian Richard
PY - 2008
Y1 - 2008
N2 - This paper considers the application of LQG integral control theory to a problem of cavity locking in quantum optics. The cavity locking problem involves controlling the error between the laser frequency and the cavity frequency. A model for the cavity system, which comprises of a piezo-electric actuator and an optical cavity is determined in the frequency domain using a subspace identification method. An LQG controller which includes integral action is synthesized to stabilize the frequency of the cavity at the laser frequency and to reject low frequency noise inherent in laser systems. The controller is discretized and is successfully tested in thelaboratory after being implemented on a dSpace DSP board.
AB - This paper considers the application of LQG integral control theory to a problem of cavity locking in quantum optics. The cavity locking problem involves controlling the error between the laser frequency and the cavity frequency. A model for the cavity system, which comprises of a piezo-electric actuator and an optical cavity is determined in the frequency domain using a subspace identification method. An LQG controller which includes integral action is synthesized to stabilize the frequency of the cavity at the laser frequency and to reject low frequency noise inherent in laser systems. The controller is discretized and is successfully tested in thelaboratory after being implemented on a dSpace DSP board.
KW - Identification and control methods
KW - Measurement & actuation
KW - Mechatronic systems
UR - http://www.scopus.com/inward/record.url?scp=79961019180&partnerID=8YFLogxK
U2 - 10.3182/20080706-5-KR-1001.1466
DO - 10.3182/20080706-5-KR-1001.1466
M3 - Conference contribution
SN - 9783902661005
T3 - IFAC Proceedings Volumes (IFAC-PapersOnline)
BT - Proceedings of the 17th World Congress, International Federation of Automatic Control, IFAC
T2 - 17th World Congress, International Federation of Automatic Control, IFAC
Y2 - 6 July 2008 through 11 July 2008
ER -