Semiconductor chip and method for producing a semiconductor chip

A semiconductor chip, having a semiconductor layer sequence with a first semiconductor layer, the first semiconductor layer having a lateral variation of a material composition and a constant thickness along at least one direction of extent, wherein

• the semiconductor chip is embodied as a laser diode chip having a laser strip, in which light is generated during operation, and a facet, via which the light is emitted during the operation,
• the first semiconductor layer has at least one first region and has second regions laterally adjacent to the at least one first region,
• the first region and the second regions comprise a same material system,
• a material composition of the first region is different from a material composition of the second regions, wherein the first region and the second regions have a same thickness,
• the first region is formed in a region of the laser strip, and
• the second regions are formed, in a lateral direction transversely in relation to a direction of extent of the laser strip, on both sides next to the laser strip.