System, method, and apparatus to provide laser beams of two or more wavelengths

A diode pumped solid state laser system for applying laser energy to a target ophthalmic tissue of a human for medical purposes, comprising:

• three diode pumped solid state laser cavities able to produce beams of three respective wavelengths travelling in associated paths, the three laser cavities comprising a source of green laser light, a source of yellow laser light and a source of red laser light;
• and
• a controller to selectively control activation of at least one of the three diode pumped solid state laser cavities and to selectively control associated power levels of the produced beams of the at least one of the three diode pumped solid state laser cavities;
• and
• an optical configuration to align the associated paths of said beams along a common optical axis to the target ophthalmic tissue.