TY - GEN
T1 - Stable Fabry-Perot Optical Frequency Comb Generation Using Differential Phase Detection
AU - Weng, Xiyi
AU - Wei, Wei
AU - Xie, Weilin
AU - Dong, Yi
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - We present a stable optical frequency comb (OFC) with a Fabry-Perot (F-P) phase modulator. By measuring the phase variation difference of upper and lower sidebands of the OFC signal, the state variation of the OFC is first precisely detected and then compensated by controlling its bias voltage through a homodyne phase-locked loop. Thanks to the precise differential phase detection, the bias drift induced by the fiber delay variation has been fully eliminated as common-mode noise, and the OFC can remain long-term stable without any additional reference signal. The deviation of the phase difference is merely 0.056 degrees over 3800 s. Moreover, the experiment shows that the OFC can still keep stable under a drastic temperature change, further validating the performance of the proposed stabilization method.
AB - We present a stable optical frequency comb (OFC) with a Fabry-Perot (F-P) phase modulator. By measuring the phase variation difference of upper and lower sidebands of the OFC signal, the state variation of the OFC is first precisely detected and then compensated by controlling its bias voltage through a homodyne phase-locked loop. Thanks to the precise differential phase detection, the bias drift induced by the fiber delay variation has been fully eliminated as common-mode noise, and the OFC can remain long-term stable without any additional reference signal. The deviation of the phase difference is merely 0.056 degrees over 3800 s. Moreover, the experiment shows that the OFC can still keep stable under a drastic temperature change, further validating the performance of the proposed stabilization method.
KW - feedback compensation
KW - homodyne
KW - long-term stability
KW - optical frequency comb
UR - http://www.scopus.com/inward/record.url?scp=85146429748&partnerID=8YFLogxK
U2 - 10.1109/MWP54208.2022.9997803
DO - 10.1109/MWP54208.2022.9997803
M3 - Conference contribution
AN - SCOPUS:85146429748
T3 - 2022 IEEE International Topical Meeting on Microwave Photonics, MWP 2022 - Proceedings
BT - 2022 IEEE International Topical Meeting on Microwave Photonics, MWP 2022 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 IEEE International Topical Meeting on Microwave Photonics, MWP 2022
Y2 - 3 October 2022 through 7 October 2022
ER -