中国物理B ›› 2021, Vol. 30 ›› Issue (9): 94207-094207.doi: 10.1088/1674-1056/abf10f

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Mid-infrared supercontinuum and optical frequency comb generations in a multimode tellurite photonic crystal fiber

Xu Han(韩旭)1, Ying Han(韩颖)1,†, Chao Mei(梅超)2, Jing-Zhao Guan(管景昭)1, Yan Wang(王彦)1, Lin Gong(龚琳)1, Jin-Hui Yuan(苑金辉)2, and Chong-Xiu Yu(余重秀)2   

  1. 1 Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China;
    2 State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications(BUPT), Beijing 100876, China
  • 收稿日期:2021-01-06 修回日期:2021-03-18 接受日期:2021-03-23 出版日期:2021-08-19 发布日期:2021-08-31
  • 通讯作者: Ying Han E-mail:hanyingysu@163.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 12074331, 61875238, and 61971373), the Natural Science Foundation of Hebei Province, China (Grant Nos. F2021203002, F2019203549, and F2020203050), and the Science and Technology Support Projects of Research and Development Plans of Qinhuangdao City (Grant No. 202004A001).

Mid-infrared supercontinuum and optical frequency comb generations in a multimode tellurite photonic crystal fiber

Xu Han(韩旭)1, Ying Han(韩颖)1,†, Chao Mei(梅超)2, Jing-Zhao Guan(管景昭)1, Yan Wang(王彦)1, Lin Gong(龚琳)1, Jin-Hui Yuan(苑金辉)2, and Chong-Xiu Yu(余重秀)2   

  1. 1 Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China;
    2 State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications(BUPT), Beijing 100876, China
  • Received:2021-01-06 Revised:2021-03-18 Accepted:2021-03-23 Online:2021-08-19 Published:2021-08-31
  • Contact: Ying Han E-mail:hanyingysu@163.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 12074331, 61875238, and 61971373), the Natural Science Foundation of Hebei Province, China (Grant Nos. F2021203002, F2019203549, and F2020203050), and the Science and Technology Support Projects of Research and Development Plans of Qinhuangdao City (Grant No. 202004A001).

摘要: We numerically investigate the mid-infrared (MIR) supercontinuum (SC) and SC-based optical frequency comb (OFC) generations when the three optical modes (LP01, LP02, and LP12) are considered in a multimode tellurite photonic crystal fiber (MM-TPCF). The geometrical parameters of the MM-TPCF are optimized to support the multimode propagation and obtain the desired dispersion characteristics of the considered three optical modes. When the pump pulse with center wavelength λ = 2.5 μm, width T = 80 fs, and peak power P = 18 kW is coupled into the anomalous dispersion region of the LP01, LP02, and LP12 modes of the MM-TPCF, the -40-dB bandwidth of the generated MIR SCs can be up to 2.56, 1.39, and 1.12 octaves, respectively, along with good coherence. Moreover, the nonlinear dynamics of the generated SCs are analyzed. Finally, the MIR SCs-based OFCs are demonstrated when a train of 50 pulses at 1-GHz repetition rate is used as the pump source and launched into the MM-TPCF.

关键词: multimode tellurite photonic crystal fiber, supercontinuum, optical frequency comb, mid-infrared spectral region

Abstract: We numerically investigate the mid-infrared (MIR) supercontinuum (SC) and SC-based optical frequency comb (OFC) generations when the three optical modes (LP01, LP02, and LP12) are considered in a multimode tellurite photonic crystal fiber (MM-TPCF). The geometrical parameters of the MM-TPCF are optimized to support the multimode propagation and obtain the desired dispersion characteristics of the considered three optical modes. When the pump pulse with center wavelength λ = 2.5 μm, width T = 80 fs, and peak power P = 18 kW is coupled into the anomalous dispersion region of the LP01, LP02, and LP12 modes of the MM-TPCF, the -40-dB bandwidth of the generated MIR SCs can be up to 2.56, 1.39, and 1.12 octaves, respectively, along with good coherence. Moreover, the nonlinear dynamics of the generated SCs are analyzed. Finally, the MIR SCs-based OFCs are demonstrated when a train of 50 pulses at 1-GHz repetition rate is used as the pump source and launched into the MM-TPCF.

Key words: multimode tellurite photonic crystal fiber, supercontinuum, optical frequency comb, mid-infrared spectral region

中图分类号:  (Nonlinear waveguides)

  • 42.65.Wi
42.65.Re (Ultrafast processes; optical pulse generation and pulse compression) 42.70.Km (Infrared transmitting materials)