High Brightness High Efficiency Fiber-Coupled Laser Diode

We propose to develop a general method for the high brightness fiber-coupied laser diode system. The overall goal of this program is to deliver a brightness of 1.4 Mega Watt cm-2 sr-1 laser power system from a single fiber with a high power ourput. Thepackage will have high power density, compact dimension and light in weight. As Phase II prototype, the coupling efficiency will over 63% for whole unit. Advance optical coupling techniques developed at Apollo Instruments will provide the basis forconstruction of the system. The laser system will be high compact, simple, and low in cost. The success of the program will eliminate a major obstacle in current fiber laser development. The enabling technology will also benefit telecommunication,medical laser laser material processing, diode pumped solid-state lasers, and high power laser beam transmission. One of the main guidelines in the system design is to develop a high perfromance fiber coupled laser diode product that system is easy torealize, simple to use, and inexpensive to build.