Analysis of a highly efficient phase-locking stabilization method for electro-optic comb generation

Published on 2020-05-21T21:33:16Z (GMT) by
We theoretically show that a slightly modified Pound-Drever-Hall (PDH) stabilization scheme can lead to the optimum time domain characteristics for electro-optic comb generators (EOCG). The ideal locking point is located by analyzing the EOCG output pulse width. By summing up the electrical field reflected by the EOCG front mirror, a model of the phase-locking error signal is derived with the Jacobi–Anger identical transformation. The simulation and experiment show that the zero-locking point of the error signal of the modified scheme coincides well with the ideal locking point in contrast to the direct application of the PDH scheme. Finally, a power efficiency of up to 2.9% is achieved with this EOCG stabilization scheme. A relative instability of better than 2.6 × 10-8 is demonstrated by a dual comb interferometer with fixed paths. The Allan deviation of the comb mode frequencies are smaller than 2.8 × 10-9 and 1.1 × 10-10 for average times of 1 s and 100 s, respectively.

Cite this collection

Yang, Ruitao; Pollinger, Florian; Hu, Peng-Cheng; Yang, Hongxing; Fu, Haijin; Zhigang, Fan; et al. (2020): Analysis of a highly efficient phase-locking

stabilization method for electro-optic comb

generation. The Optical Society. Collection. https://doi.org/10.6084/m9.figshare.c.4934274.v1