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Updated: Jun 13, 2026

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
Published on: February 28, 2016
Abstract:
The effects of saturation on the performance of two weakly coupled lasers with homogeneous gain are evaluated. Analytic steady-state results are obtained for cases where the intensity is the same in each laser. Output power is at a maximum when both lasers have the same mirror separation and a distance between them that corresponds to an integral number of wavelengths. If these conditions are changed, the result is reduced stability in addition to lower output power. A previous model, which employed third-order saturation, underpredicts the increase in output power with an increase in saturation but is qualitatively correct with regard to regimes for stable operation.
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