期刊
APPLIED OPTICS
卷 62, 期 24, 页码 6323-6332出版社
Optica Publishing Group
DOI: 10.1364/AO.495873
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We demonstrated a stable and low-noise all-polarization-maintaining ultrashort erbium-doped fiber laser that is mode-locked via nonlinear polarization evolution. The laser exhibits high-performance characteristics and is a prospective candidate for low-noise applications.
We have demonstrated a stable and low-noise all-polarization-maintaining (PM) ultrafast erbium-doped fiber laser mode-locked via nonlinear polarization evolution (NPE) in a linear cavity with dual outputs. A detailed design strategy is presented. The all-PM configuration enhances the capability of resistance to environmental fluctuations. Self-starting mode-locking is realized by using a non-reciprocal phase shifter. The dual-output structure offers the intracavity filtering effect, where the reflective port serves as a bandpass spectral filter, significantly improving the transmissive-port optical properties. The laser directly generates ultrashort pulses with a pulse duration of 129 fs operating at a fundamental repetition rate of 105.8 MHz. The integrated root-mean-square (RMS) relative intensity noise from 10 Hz to 10 MHz is similar to 0.008%, and the integrated RMS timing jitter from 5 kHz to 10 MHz is similar to 36 fs. Long-term stability is confirmed in 25 h with a RMS power fluctuation of similar to 0.10%. Our high-performance fiber laser is a prospective candidate for low-noise applications. (c) 2023 Optica Publishing Group
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