Polarization bistability in external cavity semiconductor lasers

Fujita, T.; Schremer, A.; Tang, C. L.
August 1987
Applied Physics Letters;8/10/1987, Vol. 51 Issue 6, p392
Academic Journal
Polarization bistability between the transverse electric (TE) and transverse magnetic (TM) modes is observed in an external cavity semiconductor laser. Hysteresis in the polarization-resolved output power is obtained by controlling the optical feedback power of the TE mode via an intracavity electro-optic modulator. Transitions between single external-cavity frequencies of TE and TM modes are also demonstrated. Nonlinear gain saturation is the origin of this bistability.


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