Abstract
Diode-laser-pumped unidirectional nonplanar ring lasers are interesting because they have narrow linewidths and are resistant to optical feedback.1–3 Understanding the polarization characteristics of these monolithic nonplanar ring lasers is the key to optimizing their performance. We have performed a rigorous Jones matrix analysis4 of the eigenpolarizations of monolithic nonplanar ring lasers. Our theory enables us to design lasers with loss differences between the two directions of propagation that are orders of magnitude larger than in previously published designs. The larger values of loss splitting will lead to Improved resistance to optical feedback. Our theory also enables us to predict how the laser frequency will tune with changes in the applied magnetic field. Magnetic field tuning and an appropriate external standard make it possible to stabilize the frequency of the monolithic nonplanar ring laser.
© 1988 Optical Society of America
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