Influences of multiphoton absorption and free-carrier effects on frequency-comb generation in normal dispersion silicon microresonators

Mulong Liu; Leiran Wang; Qibing Sun; Siqi Li; Zhiqiang Ge; Zhizhou Lu; Weiqiang Wang; Guoxi Wang; Wenfu Zhang; Xiaohong Hu; Wei Zhao

doi:doi:10.1364/PRJ.6.000238

Photonics Research, 2018, 6 (4): 04000238, Published Online: Mar. 22, 2019

Influences of multiphoton absorption and free-carrier effects on frequency-comb generation in normal dispersion silicon microresonators Download： 715次

Mulong Liu ^1,2Leiran Wang ^1,2,*Qibing Sun ¹Siqi Li ^1,2Zhiqiang Ge ^1,2Zhizhou Lu ^1,2Weiqiang Wang ^1,2Guoxi Wang ^1,2Wenfu Zhang ^1,2,3Xiaohong Hu ¹Wei Zhao ^1,2

Author Affiliations

¹ State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi’an 710119, China

² University of Chinese Academy of Sciences, Beijing 100049, China

³ e-mail: wfuzhang@opt.ac.cn

Figures & Tables

Fig. 1. (a) Frequency-comb spectra in the absence (blue) and presence (red) of two-photon absorption. (b) The corresponding temporal evolution of (a) (blue curve). (c) The final stable flat top pulse in (b).

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Fig. 2. (a) Spectra are generated in the presence of 3PA and FC effects (red), in the presence of 3PA without FC effects (blue), and in the absence of 3PA (green). (b) Temporal evolution of comb [blue curve in (a)] in the presence of 3PA without FC effects.

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Fig. 3. (a) Spectra are generated in the presence of 4PA without FC effects (blue) and with FC effects (red). (b) Corresponding temporal profiles.

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Fig. 4. (a) Spectra generated in the presence of 3PA and FC effects with different frequency separations of pumps. (b) Corresponding temporal evolution of blue curve in (a). (c) The final stable pulse of (b).

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Fig. 5. (a) Spectrum generated in the presence of 4PA and FC effects. (b) Corresponding temporal evolution. (c) The final stable pulse of (b).

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Fig. 6. (a)–(c) Spectra and (d)–(f) temporal profiles correspond to locations a, b, and c in temporal evolution of (g) with detuning of 0.05, 0.11, and 0.12, respectively.

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Mulong Liu, Leiran Wang, Qibing Sun, Siqi Li, Zhiqiang Ge, Zhizhou Lu, Weiqiang Wang, Guoxi Wang, Wenfu Zhang, Xiaohong Hu, Wei Zhao. Influences of multiphoton absorption and free-carrier effects on frequency-comb generation in normal dispersion silicon microresonators[J]. Photonics Research, 2018, 6(4): 04000238.

Influences of multiphoton absorption and free-carrier effects on frequency-comb generation in normal dispersion silicon microresonators Download： 715次

Fig. 1. (a) Frequency-comb spectra in the absence (blue) and presence (red) of two-photon absorption. (b) The corresponding temporal evolution of (a) (blue curve). (c) The final stable flat top pulse in (b).

Fig. 2. (a) Spectra are generated in the presence of 3PA and FC effects (red), in the presence of 3PA without FC effects (blue), and in the absence of 3PA (green). (b) Temporal evolution of comb [blue curve in (a)] in the presence of 3PA without FC effects.

Fig. 3. (a) Spectra are generated in the presence of 4PA without FC effects (blue) and with FC effects (red). (b) Corresponding temporal profiles.

Fig. 4. (a) Spectra generated in the presence of 3PA and FC effects with different frequency separations of pumps. (b) Corresponding temporal evolution of blue curve in (a). (c) The final stable pulse of (b).

Fig. 5. (a) Spectrum generated in the presence of 4PA and FC effects. (b) Corresponding temporal evolution. (c) The final stable pulse of (b).

Fig. 6. (a)–(c) Spectra and (d)–(f) temporal profiles correspond to locations a, b, and c in temporal evolution of (g) with detuning of 0.05, 0.11, and 0.12, respectively.

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Influences of multiphoton absorption and free-carrier effects on frequency-comb generation in normal dispersion silicon microresonators Download： 715次

Fig. 1. (a) Frequency-comb spectra in the absence (blue) and presence (red) of two-photon absorption. (b) The corresponding temporal evolution of (a) (blue curve). (c) The final stable flat top pulse in (b).

Fig. 2. (a) Spectra are generated in the presence of 3PA and FC effects (red), in the presence of 3PA without FC effects (blue), and in the absence of 3PA (green). (b) Temporal evolution of comb [blue curve in (a)] in the presence of 3PA without FC effects.

Fig. 3. (a) Spectra are generated in the presence of 4PA without FC effects (blue) and with FC effects (red). (b) Corresponding temporal profiles.

Fig. 4. (a) Spectra generated in the presence of 3PA and FC effects with different frequency separations of pumps. (b) Corresponding temporal evolution of blue curve in (a). (c) The final stable pulse of (b).

Fig. 5. (a) Spectrum generated in the presence of 4PA and FC effects. (b) Corresponding temporal evolution. (c) The final stable pulse of (b).

Fig. 6. (a)–(c) Spectra and (d)–(f) temporal profiles correspond to locations a, b, and c in temporal evolution of (g) with detuning of 0.05, 0.11, and 0.12, respectively.

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