摘要:
A nitride semiconductor laser element, has: a nitride semiconductor layer including a first nitride semiconductor layer, an active layer, and a second nitride semiconductor layer laminated in that order; and resonator end faces formed mutually opposing at the end of said nitride semiconductor layers, wherein an impurity is contained in at least an optical output region of the resonator end faces, with the concentration of said impurity having a concentration distribution that is asymmetric in reference to a peak position, in the lamination direction of the nitride semiconductor layers, and said optical output region has a wider bandgap than other regions in the active layer or said optical output region has a higher impurity concentration than other regions in the active layer.
摘要:
A nitride semiconductor laser element, has: a nitride semiconductor layer comprising a first nitride semiconductor layer, an active layer, and a second nitride semiconductor layer laminated in that order; and resonator end faces formed mutually opposing at the end of said nitride semiconductor layers, wherein an impurity is contained in at least an optical output region of the resonator end faces, with the concentration of said impurity having a concentration distribution that is asymmetric in reference to a peak position, in the lamination direction of the nitride semiconductor layers, and said optical output region has a wider bandgap than other regions in the active layer or said optical output region has a higher impurity concentration than other regions in the active layer.
摘要:
A method for manufacturing a nitride semiconductor laser element having a nitride semiconductor layer including at least an active layer provided on a substrate, a pair of cavity planes formed on the nitride semiconductor layer, and a protruding part where part of the substrate protrudes from said cavity plane, said method comprises: a step of forming the nitride semiconductor layer on the substrate; a first etching step of forming a first groove by etching at least the nitride semiconductor layer; and a second etching step of forming the cavity plane, in the second etching step, the inner wall of the first groove and part of the nitride semiconductor layer surface adjacent to the first groove are etched to form a second groove, and form the upper face of the protruding part.
摘要:
A method for manufacturing a nitride semiconductor laser element having a nitride semiconductor layer including at least an active layer provided on a substrate, a pair of cavity planes formed on the nitride semiconductor layer, and a protruding part where part of the substrate protrudes from said cavity plane, said method comprises: a step of forming the nitride semiconductor layer on the substrate; a first etching step of forming a first groove by etching at least the nitride semiconductor layer; and a second etching step of forming the cavity plane, in the second etching step, the inner wall of the first groove and part of the nitride semiconductor layer surface adjacent to the first groove are etched to form a second groove, and form the upper face of the protruding part.