Gain-dependent polarization properties of vertical-cavity lasers
نویسندگان
چکیده
منابع مشابه
Investigating the Polarization Properties of Vertical-Cavity Surface-Emitting Lasers
Vertical-cavity surface-emitting lasers (VCSELs) are a new type of semiconductor laser that have emerged as an economical alternative to conventional edge-emitting lasers. Anisotropies within these lasers, such as birefringence and dichroism, cause their optical output to favor one of two orthogonal linear polarizations; however, other optical outputs such as elliptical polarization and polariz...
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| Polarization state selection, polarization state dynamics, and polarization switching of a quantum-well Vertical Cavity Surface Emitting Laser for the lowest order transverse spatial mode of the laser is explored using a recently developed model that incorporates material birefrin-gence, the saturable dispersion characteristic of semiconductor physics,and the sensitivity of the transitions in...
متن کاملPolarization properties of vertical-cavity surface-emitting lasers subject to feedback with variably rotated polarization angle.
Influences of variable-angle polarization-rotated optical feedback on polarization properties of vertical-cavity surface-emitting lasers (VCSELs) are investigated numerically. For the so-called case A (x polarization) feedback, only the x mode is selected to pass through the feedback loop. As the polarization angle is varied from 0 degrees to 90 degrees, the dominant polarization mode switching...
متن کاملPolarization Properties of Vertical-cavity Surface-emitting Lasers Subject to Variable Optical Feedback Polarization Angle
In this paper, the influence of variable polarization angle (θp) of optical feedback (OF) on the polarization properties of a vertical-cavity surface-emitting lasers (VCSELs) is investigated experimentally. Parallel polarization optical feedback (PPOF) and orthogonal polarization optical feedback (OPOF) are employed, where the polarization light is re-injected back into the laser. For the PPOF ...
متن کاملPolarization switching control in vertical-cavity surface-emitting lasers
Orthogonal polarizations within vertical-cavity surface-emitting lasers ~VCSEL! lase at slightly different wavelengths. We describe the use of optical feedback to confine polarization variations to reproducible injection currents. An external cavity is used to select specific wavelengths that reflect back into the VCSEL, hence, changing the cavity Q for the different polarization states. With t...
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ژورنال
عنوان ژورنال: IEEE Journal of Selected Topics in Quantum Electronics
سال: 1995
ISSN: 1077-260X
DOI: 10.1109/2944.401255