| At present, because the application fields such as optical fiber communication demand for semiconductor laser fiber coupling is more and more widely, so this paper on the single chip semiconductor laser fiber coupling system design. Optical fiber coupling system can be divided into collimating systems, polarization, the expanded beam system and focus on the system, and analyses the selection of each system and research, and then to the specific parameters for the calculation of each system. In this paper, by using the ZEMAX optical design software will be12single polarization, wavelength of808nm, fast50°axis direction divergence Angle, slow axis direction divergence Angle8°,10W power output, light emitting area of1micronsx200microns, the cavity is4000microns long more units of a single chip semiconductor laser beam coupled into the fiber core diameter d=105microns, NA=0.22in the fiber, the output power of118.93W, optical coupling efficiency is99.1%. Finally, ZEMAX optical design software is used to analyze the optical unit with single chip semiconductor laser fiber coupling system docking cases occur error and single chip semiconductor laser installation error cases, the influence of various error under the given the change of the fiber coupling efficiency curve, provides more chip semiconductor laser fiber coupling system of theoretical basis and technical research. |
