All-polarization-maintaining Yb-doped fiber oscillator with a hybrid ring-linear cavity of net anomalous dispersion

Mateusz Pielach; Agnieszka Jamrozik; Katarzyna Krupa; Yuriy Stepanenko

doi:10.1117/12.2648440

8 March 2023 All-polarization-maintaining Yb-doped fiber oscillator with a hybrid ring-linear cavity of net anomalous dispersion

Mateusz Pielach, Agnieszka Jamrozik, Katarzyna Krupa, Yuriy Stepanenko

Author Affiliations +

Proceedings Volume 12400, Fiber Lasers XX: Technology and Systems; 124001N (2023) https://doi.org/10.1117/12.2648440
Event: SPIE LASE, 2023, San Francisco, California, United States

Conference Poster

Abstract

Chirped fiber Bragg gratings opened up a way towards investigating dispersion-managed dissipative soliton regime in all-fiber cavities at the wavelength of 1 µm. It has been shown that dispersion management can decrease the chirped pulse duration compared to all-normal-dispersion oscillators. Recent works also prove that operation near-zero net cavity dispersion can reduce the relative intensity noise. Building such systems using only polarization-maintaining optical fibers is of great interest because of their robustness in extreme environmental conditions resulting in various applications outside research laboratories. This work presents an ultrafast Ybdoped fiber laser oscillator made entirely of polarization-maintaining optical fibers and fiberized components. Unlike in typical ring cavities, the ultrashort pulse passes through the rare-earth-doped fiber twice per cavity roundtrip. The system operates in a Raman-free dispersion-managed dissipative soliton regime at the central wavelength of 1031 nm. The negative dispersion is introduced to the cavity via a chirped fiber Bragg grating. At net cavity dispersion of –0.037 ps², the setup delivers stable 3 nJ pulses at a repetition rate of 23.781 MHz. The oscillator, passively mode-locked with a nonlinear optical loop mirror, generates positively chirped 8.2 ps pulses, which can be compressed down to 125 fs with a temporal Strehl ratio of 0.77.

Citation Download Citation

Mateusz Pielach, Agnieszka Jamrozik, Katarzyna Krupa, and Yuriy Stepanenko "All-polarization-maintaining Yb-doped fiber oscillator with a hybrid ring-linear cavity of net anomalous dispersion", Proc. SPIE 12400, Fiber Lasers XX: Technology and Systems, 124001N (8 March 2023); https://doi.org/10.1117/12.2648440

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