[1] J. Luo, B. Sun, J. Liu, Z. Yan, N. Li, E. L. Tan, Q. Wang, X. Yu. Mid-IR supercontinuum pumped by femtosecond pulses from thulium doped all-fiber amplifier. Opt. Express, 2016, 24: 13939-13945.

[2] A. Khodabakhsh, R. Ramaiah-Badarla, L. Rutkowski, A. C. Johansson, K. F. Lee, J. Jiang, C. Mohr, M. E. Fermann, A. Foltynowicz. Fourier transform and Vernier spectroscopy using an optical frequency comb at 3-5.4  μm. Opt. Lett., 2016, 41: 2541-2544.

[3] G. Hüttmann, C. Yao, E. Endl. New concepts in laser medicine: towards a laser surgery with cellular precision. Med. Laser Appl., 2005, 20: 135-139.

[4] P. Li, A. Ruehl, U. Grosse-Wortmann, I. Hartl. Sub-100  fs passively mode-locked holmium-doped fiber oscillator operating at 2.06  μm. Opt. Lett., 2014, 39: 6859-6862.

[5] Y. Tang, A. Chong, F. W. Wise. Generation of 8  nJ pulses from a normal-dispersion thulium fiber laser. Opt. Lett., 2015, 40: 2361-2364.

[6] JiangJ.MohrC.BethgeJ.MillsA.MeffordW.HartlI.FermannM. E.LeeC.SuzukiS.SchibliT. R.LeindeckerN.VodopyanovK. L.SchunemannP. G., “500  MHz, 58  fs highly coherent Tm fiber soliton laser,” in Conference on Lasers and Electro-Optics, OSA Technical Digest (online) (Optical Society of America, 2012), paper CTh5D.7.

[7] J. Sotor, M. Pawliszewska, G. Sobon, P. Kaczmarek, A. Przewolka, I. Pasternak, J. Cajzl, P. Peterka, P. Honzátko, I. Kašík, W. Strupinski, K. Abramski. All-fiber Ho-doped mode-locked oscillator based on a graphene saturable absorber. Opt. Lett., 2016, 41: 2592-2595.

[8] J. Wang, X. Liang, G. Hu, Z. Zheng, S. Lin, D. Ouyang, X. Wu, P. Yan, S. Ruan, Z. Sun, T. Hasan. 152  fs nanotube-mode-locked thulium-doped all-fiber laser. Sci. Rep., 2016, 6: 28885.

[9] N. Nishizawa, T. Goto. Widely wavelength-tunable ultrashort pulse generation using polarization maintaining optical fibers. IEEE J. Sel. Top. Quantum Electron., 2001, 7: 518-524.

[10] J. Takayanagi, T. Sugiura, M. Yoshida, N. Nishizawa. 1.0-1.7-μm wavelength-tunable ultrashort-pulse generation using femtosecond Yb-doped fiber laser and photonic crystal fiber. IEEE Photon. Technol. Lett., 2006, 18: 2284-2286.

[11] R. Pant, A. C. Judge, E. C. Magi, B. T. Kuhlmey, M. de Sterke, B. J. Eggleton. Characterization and optimization of photonic crystal fibers for enhanced soliton self-frequency shift. J. Opt. Soc. Am. B, 2010, 27: 1894-1901.

[12] T. Cheng, R. Usaki, Z. Duan, W. Gao, D. Deng, M. Liao, T. Kanou, M. Matsumoto, T. Misumi, T. Suzuki, Y. Ohishi. Soliton self-frequency shift and third-harmonic generation in a four-hole As₂S₅ microstructured optical fiber. Opt. Express, 2014, 22: 3740-3746.

[13] E. A. Anashkina, A. V. Andrianov, M. Y. Koptev, V. M. Mashinsky, S. V. Muravyev, A. V. Kim. Generating tunable optical pulses over the ultrabroad range of 1.6-2.5  μm in GeO₂-doped silica fibers with an Er:fiber laser source. Opt. Express, 2012, 20: 27102-27107.

[14] Y. Tang, L. G. Wright, K. Charan, T. Wang, C. Xu, F. W. Wise. Generation of intense 100  fs solitons tunable from 2 to 4.3  μm in fluoride fiber. Optica, 2016, 3: 948-951.

[15] G. Soboń, T. Martynkien, K. Tarnowski, P. Mergo, J. Sotor. Generation of sub-100  fs pulses tunable from 1700 to 2100  nm from a compact frequency-shifted Er-fiber laser. Photon. Res., 2017, 5: 151-155.

[16] N. G. Horton, K. Wang, D. Kobat, C. G. Clark, F. W. Wise, C. B. Schaffer, C. Xu. In vivo three-photon microscopy of subcortical structures within an intact mouse brain. Nat. Photonics, 2013, 7: 205-209.

[17] C. Li, X. Wei, C. Kong, S. Tan, N. Chen, J. Kang, K. K. Y. Wong. Fiber chirped pulse amplification of a short wavelength mode-locked thulium-doped fiber laser. APL Photon., 2017, 2: 121302.

[18] J. H. Lee, J. van Howe, C. Xu, X. Liu. Soliton self-frequency shift: experimental demonstrations and applications. IEEE J. Sel. Top. Quantum Electron., 2008, 14: 713-723.

[19] J. Luo, B. Sun, J. Ji, E. L. Tan, Y. Zhang, X. Yu. High-efficiency femtosecond Raman soliton generation with a tunable wavelength beyond 2  μm. Opt. Lett., 2017, 42: 1568-1571.

[20] G. Soboń, T. Martynkien, P. Mergo, L. Rutkowski, A. Foltynowicz. High-power frequency comb source tunable from 2.7 to 4.2  μm based on difference frequency generation pumped by an Yb-doped fiber laser. Opt. Lett., 2017, 42: 1748-1751.

[21] H. Hoogland, A. Thai, D. Sánchez, S. L. Cousin, M. Hemmer, M. Engelbrecht, J. Biegert, R. Holzwarth. All-PM coherent 2.05  μm thulium/holmium fiber frequency comb source at 100  MHz with up to 0.5  W average power and pulse duration down to 135  fs. Opt. Express, 2013, 21: 31390-31394.

[22] N. Coluccelli, M. Cassinerio, P. Laporta, G. Galzerano. Single-clad Tm-Ho:fiber amplifier for high-power sub-100-fs pulses around 1.9  μm. Opt. Lett., 2013, 38: 2757-2759.

[23] H. Hoogland, S. Wittek, W. Hänsel, S. Stark, R. Holzwarth. Fiber chirped pulse amplifier at 2.08  μm emitting 383-fs pulses at 10  nJ and 7  MHz. Opt. Lett., 2014, 39: 6735-6738.

[24] R. A. Sims, P. Kadwani, A. Sincore, L. Shah, M. Richardson. 1  μJ, sub-500  fs chirped pulse amplification in a Tm-doped fiber system. Opt. Lett., 2013, 38: 121-123.

[25] G. Imeshev, M. E. Fermann. 230-kW peak power femtosecond pulses from a high power tunable source based on amplification in Tm-doped fiber. Opt. Express, 2005, 13: 7424-7431.

[26] B. Sun, J. Luo, Y. Zhang, Q. Wang, X. Yu. 65  fs pulses at 2  μm in a compact thulium-doped all-fiber laser through dispersion and nonlinearity management. IEEE Photon. Technol. Lett., 2018, 30: 303-306.

[27] P. Wang, H. Shi, F. Tan, P. Wang. Tunable femtosecond pulse source from 1.6 to 2.3  μm with 100  kW peak power in an all-fiber system. Chin. Opt. Lett., 2016, 14: 091405.

[28] M. Y. Koptev, E. A. Anashkina, A. V. Andrianov, S. V. Muravyev, A. V. Kim. Two-color optically synchronized ultrashort pulses from a Tm/Yb-co-doped fiber amplifier. Opt. Lett., 2014, 39: 2008-2011.

[29] J. Sotor, G. Soboń. 24  fs and 3  nJ pulse generation from a simple, all polarization maintaining Er-doped fiber laser. Laser Phys. Lett., 2017, 13: 125102.

[30] K. Tarnowski, T. Martynkien, P. Mergo, K. Poturaj, A. Anuszkiewicz, P. Béjot, F. Billard, O. Faucher, B. Kibler, W. Urbanczyk. Polarized all-normal dispersion supercontinuum reaching 2.5  μm generated in a birefringent microstructured silica fiber. Opt. Express, 2017, 25: 27452-27463.

[31] P. Hlubina, M. Kadulová, D. Ciprian. Spectral interferometry-based chromatic dispersion measurement of fibre including the zero-dispersion wavelength. JEOS RP, 2012, 7: 12017.

[32] S. Kim, J. Park, S. Han, Y.-J. Kim, S.-W. Kim. Coherent supercontinuum generation using Er-doped fiber laser of hybrid mode-locking. Opt. Lett., 2014, 39: 2986-2989.

[33] M. Klimczak, G. Sobon, R. Kasztelanic, K. Abramski, R. Buczyński. Direct comparison of shot-to-shot noise performance of all normal dispersion and anomalous dispersion supercontinuum pumped with sub-picosecond pulse fiber-based laser. Sci. Rep., 2016, 6: 19284.

[34] A. F. J. Runge, C. Aguergaray, N. G. R. Broderick, M. Erkintalo. Coherence and shot-to-shot spectral fluctuations in noise-like ultrafast fiber lasers. Opt. Lett., 2013, 38: 4327-4330.

[35] T. W. Neely, T. A. Johnson, S. A. Diddams. High-power broadband laser source tunable from 3.0  μm to 4.4  μm based on a femtosecond Yb:fiber oscillator. Opt. Lett., 2011, 36: 4020-4022.