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Schematic layout (top) and operation principle (bottom) of the TM-mode optical waveguide isolator; is the (real) effective index and is the effective modal loss of the guided mode.
Experimental gain -current density relation of the tensile strained AlGaInAs MQW active material, measured on six QWs BA lasers.
TM-mode nonreciprocal loss shift at . is equivalent to an isolation ratio of .
Details of the layer structure with the optimized thickness values.
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