Two-dimensional phase locked semiconductor laser array

A phase locked two-dimensional semiconductor laser array comprising:

• a heat sink;
• a common electrode placed on said heat sink;
• a common substrate placed on said common electrode;
• a plurality of individual lasers forming a column arragement fixed on said common substrate in i columns such that each of said columns has more then one laser in it, and where i equals on integer, each of said individual lasers in a column emitting light towards the lasers next to it in the same column;
• and
• a plurality of slant mirrors fixed on said common substrate so that every one of said individual lasers has one of said plurality of slant mirrors between it and the lasers next to it in the same column, each of said slant mirrors reflecting out of the laser array the light it receives from the individual lasers beside it in a wavefront by coupling evanescent waves of adjacent individual lasers, which is accomplished as a result of the column arrangement of said plurality of individual lasers, and wherein each of said slant mirrors in an i.sup.th column of said array forms an optical path length of x.sub.i with the individual lasers adjacent to it so that an optical path length of column number i+1 is x.sub.i+1 which is given by:
• x.sub.i =x.sub.i+1 .+-.n(.lambda./2)
• where:
• i equals an integer enumerating any column in said array;
• .lambda. equals a measure of wavelength of the light transmitted out of the array;
• and n equals an odd integer.