PL449553A1 - Design of the top electrical contact and emitter arrangement in a one-dimensional 16-element array of 16 W edge-cut semiconductor lasers - Google Patents

Abstract

An edge-emitting laser array emitting light at a wavelength of 540 nm with a total power of 16 W, consisting of 16 individual emitters covered with a common contact made of 1 µm thick gold, characterized by a uniform temperature of all emitters (the standard deviation of the maximum temperatures in each emitter does not exceed 0.1 K), with variable distances between emitters. The temperature equalization is achieved by arranging the emitters in such a way that the distance between the center of the emitter (1) and the emitter (2) is 29.442 µm, between the center of the emitter (2) and the emitter (3) is 40.881 µm, between the center of the emitter (3) and the emitter (4) is 46.745 µm, between the center of the emitter (4) and the emitter (5) is 52.523 µm, between the center of the emitter (5) and the emitter (6) is 55.227 µm, between the center of the emitter (6) and the emitter (7) is 59.440 µm, between the center of the emitter (7) and the emitter (8) is 59.697 µm, between the center of the emitter (8) and the emitter (9) is 62.087 µm, between the center of the emitter (9) and the emitter (10) is 59.697 µm, between the center of the emitter (10) and the emitter (11) is 59.440 µm, between the center of the emitter (11) and the emitter (12) is 55.227 µm, between the center of the emitter (12) and the emitter (13) is 52.523 µm, between the center of the emitter (13) and the emitter (14) is 46.745 µm, between the center of the emitter (14) and the emitter (15) is 40.881 µm, between the center of the emitter (15) and the emitter (16) is 29.442 µm, and covered with a gold layer (17) having a thickness of 1.00 µm and a width such that it protrudes outward by 7.102 µm from the center of the emitter (1) and the emitter (16), each emitter having a width of 2 µm.