A system for performing laser treatments, the system comprising: a diode laser assembly comprising at least one laser diode source (44, 55) configured to produce a controllable laser beam (40, 100); a driving control unit providing the at least one laser diode source (44, 55) with three different power settings comprising an aiming level power setting causing generation of an aiming laser beam (40, 100) of less than 1mW, a trough level power setting that is greater than the aiming level power setting and causes generation of a continuous level laser beam (40, 100) with output levels of 1mW to 49mW for warming a target without causing photocoagulation, and a peak level power setting that has an upper level power setting greater than the trough level power setting and causes generation of a peak level controlled pulse width train laser beam (40, 100) with an output level of 50mW to 3000mW, that all follow the same path; a laser output assembly which directs and focuses output of the controllable laser beam (40, 100); wherein the at least one laser diode source (44, 55) generates a controllable laser beam (40, 100) output designated by the three different power settings; wherein the controllable laser beam (40, 100) output comprises controlled pulse width trains alternating between the LLL beam (40, 100) and a peak level laser beam (40, 100) wherein the controllable laser beam (40, 100) output further comprises emitting the peak level controlled pulse width train laser beam (40, 100) in a range of 5μsec to 100usec time duration between each pulse; wherein the peak level power of the peak level therapy controlled pulse width train laser beam (40, 100) is of sufficient power to cause photocoagulation, but further wherein the controllable laser beam (40, 100) output does not cause significant collateral photocoagulation damage; and wherein the three different power settings are adjusted by adjusting electrical current levels. a diode laser assembly comprising at least one laser diode source (44, 55) configured to produce a controllable laser beam (40, 100); a driving control unit providing the at least one laser diode source (44, 55) with three different power settings comprising an aiming level power setting causing generation of an aiming laser beam (40, 100) of less than 1mW, a trough level power setting that is greater than the aiming level power setting and causes generation of a continuous level laser beam (40, 100) with output levels of 1mW to 49mW for warming a target without causing photocoagulation, and a peak level power setting that has an upper level power setting greater than the trough level power setting and causes generation of a peak level controlled pulse width train laser beam (40, 100) with an output level of 50mW to 3000mW, that all follow the same path; a laser output assembly which directs and focuses output of the controllable laser beam (40, 100); wherein the at least one laser diode source (44, 55) generates a controllable laser beam (40, 100) output designated by the three different power settings; wherein the controllable laser beam (40, 100) output comprises controlled pulse width trains alternating between the LLL beam (40, 100) and a peak level laser beam (40, 100) wherein the controllable laser beam (40, 100) output further comprises emitting the peak level controlled pulse width train laser beam (40, 100) in a range of 5μsec to 100usec time duration between each pulse; wherein the peak level power of the peak level therapy controlled pulse width train laser beam (40, 100) is of sufficient power to cause photocoagulation, but further wherein the controllable laser beam (40, 100) output does not cause significant collateral photocoagulation damage; and wherein the three different power settings are adjusted by adjusting electrical current levels.