A long-term frequency-stabilized erbium-fiber-laser-based optical frequency comb with an intra-cavity electro-optic modulator<xref ref-type="fn" rid="cpb142444fn1">*</xref>

A long-term frequency-stabilized erbium-fiber-laser-based optical frequency comb with an intra-cavity electro-optic modulator*

Zhang Yan-Yan^a), Yan Lu-Lu^a), Zhao Wen-Yu^a),^b), Meng Sen^a),^c), Fan Song-Tao^a),^b), Zhang Long^a), Guo Wen-Ge^c), Zhang Shou-Gang^a), Jiang Hai-Feng^a)†

(a) Residual fluctuation of the stabilized in-loop CEO frequency; (b) optical comb frequency instability induced by in-loop f _ceo fluctuation.