Noise-like pulse with a 690 fs pedestal generated from a nonlinear Yb-doped fiber amplification system

Zexin Zhang; Jinrong Tian; Changxing Xu; Runqin Xu; Youshuo Cui; Bihui Zhuang; Yanrong Song

doi:doi:10.3788/COL202018.121403

Chinese Optics Letters, 2020, 18 (12): 121403, Published Online: Oct. 26, 2020

Noise-like pulse with a 690 fs pedestal generated from a nonlinear Yb-doped fiber amplification system Download： 718次

Zexin Zhang ¹Jinrong Tian ^1,*Changxing Xu ¹Runqin Xu ²Youshuo Cui ¹Bihui Zhuang ¹Yanrong Song ¹

Author Affiliations

¹ College of Physics and Optoelectronics, Faculty of Science, Beijing University of Technology, Beijing 100124, China

² Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China

Figures & Tables

Fig. 1. Schematic of the nonlinear Yb-doped fiber amplified system. (a) Oscillator, (b) amplifier, and (c) compressor. WDM, wavelength division multiplexer; YDF, Yb-doped fiber; ISO, isolator; OC, output coupler; QWP, quarter-wave plate; HWP, half-wave plate; PBS, polarized beam splitter; BF, birefringence filter; DCYDF, double-cladding Yb-doped fiber; C1–C3, collimators; M, high reflection mirror.

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Fig. 2. Output characteristics of the oscillator. (a) Spectral emission versus pump power. (b) RF spectrum (34–45 MHz). Inset: RF spectrum in the span of 2 GHz.

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Fig. 3. Spectrum of the amplified pulse with respect to pump power.

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Fig. 4. Output power of the amplifier as a function of pump power.

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Fig. 5. Pulse duration of the NLPs as a function of separation of the grating pair (red line, pedestal; blue line, spike).

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Fig. 6. (a) Shortest pulse duration of a compressed NLP at different pump powers (7.6–8.6 W). (b) Autocorrelation traces of an NLP at pump power of 8 W. Inset: the corresponding spike.

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Fig. 7. Autocorrelation trace of the NLP at a pump power of 8 W before compression.

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Fig. 8. Spectrum versus the pump power after compression. Inset: spectrum at pump power of 7–9 W.

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Fig. 9. Output power with respect to pump power after compression.

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Fig. 10. RF spectrum of the NLP from 34 to 45 MHz after compression. Inset: RF spectrum in the span of 2 GHz.

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Zexin Zhang, Jinrong Tian, Changxing Xu, Runqin Xu, Youshuo Cui, Bihui Zhuang, Yanrong Song. Noise-like pulse with a 690 fs pedestal generated from a nonlinear Yb-doped fiber amplification system[J]. Chinese Optics Letters, 2020, 18(12): 121403.

Noise-like pulse with a 690 fs pedestal generated from a nonlinear Yb-doped fiber amplification system Download： 718次

Fig. 2. Output characteristics of the oscillator. (a) Spectral emission versus pump power. (b) RF spectrum (34–45 MHz). Inset: RF spectrum in the span of 2 GHz.

Fig. 3. Spectrum of the amplified pulse with respect to pump power.

Fig. 4. Output power of the amplifier as a function of pump power.

Fig. 5. Pulse duration of the NLPs as a function of separation of the grating pair (red line, pedestal; blue line, spike).

Fig. 6. (a) Shortest pulse duration of a compressed NLP at different pump powers (7.6–8.6 W). (b) Autocorrelation traces of an NLP at pump power of 8 W. Inset: the corresponding spike.

Fig. 7. Autocorrelation trace of the NLP at a pump power of 8 W before compression.

Fig. 8. Spectrum versus the pump power after compression. Inset: spectrum at pump power of 7–9 W.

Fig. 9. Output power with respect to pump power after compression.

Fig. 10. RF spectrum of the NLP from 34 to 45 MHz after compression. Inset: RF spectrum in the span of 2 GHz.

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Noise-like pulse with a 690 fs pedestal generated from a nonlinear Yb-doped fiber amplification system Download： 718次

Fig. 2. Output characteristics of the oscillator. (a) Spectral emission versus pump power. (b) RF spectrum (34–45 MHz). Inset: RF spectrum in the span of 2 GHz.

Fig. 3. Spectrum of the amplified pulse with respect to pump power.

Fig. 4. Output power of the amplifier as a function of pump power.

Fig. 5. Pulse duration of the NLPs as a function of separation of the grating pair (red line, pedestal; blue line, spike).

Fig. 6. (a) Shortest pulse duration of a compressed NLP at different pump powers (7.6–8.6 W). (b) Autocorrelation traces of an NLP at pump power of 8 W. Inset: the corresponding spike.

Fig. 7. Autocorrelation trace of the NLP at a pump power of 8 W before compression.

Fig. 8. Spectrum versus the pump power after compression. Inset: spectrum at pump power of 7–9 W.

Fig. 9. Output power with respect to pump power after compression.

Fig. 10. RF spectrum of the NLP from 34 to 45 MHz after compression. Inset: RF spectrum in the span of 2 GHz.

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