首页|Low-noise compact fiber laser based on nonlinear polarization evolution in an all-polarization-maintaining figure-8 cavity
Low-noise compact fiber laser based on nonlinear polarization evolution in an all-polarization-maintaining figure-8 cavity
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维普
We demonstrate an all-polarization-maintaining[APM]fiber mode-locked laser based on nonlinear polarization evolution[NPE].A well-designed Sagnac fiber loop is employed to establish the nonlinear polarization evolution process in a polari-zation beam splitter[PBS]figure-8 fiber laser.Nonlinear loss curves are calculated to verify the saturable absorption char-acteristic of this NPE-based APM oscillator.Then,we simulate the pulse propagation process in the cavity to demonstrate the pulse mode-locked formation.Finally,we also design a realizable compact scheme to further reduce noise disturbances,achieving a 101-fs mode-locked pulse train with a 0.3-mrad integrated phase noise and a 0.006％integrated relative intensity noise[RIN].This figure-8 fiber laser provides a new scheme for compacting low-noise compact APM fiber lasers based on the NPE mode-locked mechanism.
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