Optimal alignment of the output of the laser array stack of 2-D to the optical fiber

摘要

Light generating device is operatively coupled to (10) optical fiber having a cladding (5), the core defining a core diameter, and (4). And a numerical aperture, the product of one-half the diameter of the core (4) and the numerical aperture of the fiber 400 mm optical fiber (10) - equal to milliradian - 500 millimeters or substantially less milliradians. And a laser diode arrays multiple (7) and (6,23,55), each array being adapted to emit light beams of the individual (21, 11) of at least the light emitting region of one device (1, 24 I have). Laser diode arrays are (6,23,55), which is disposed a light beam from a separate (21, 11) to be coupled to a combined beam, the combined beam to the far field in the first direction of the first a divergence half angle of, the waist size of the first in the first direction, and a divergence half angle of the far field in the second in the second direction is substantially perpendicular to, in the second direction to the first direction I have, and waist size of the second. A laser diode array (6,23,55), to be coupled to the core of the fiber at the end of the fiber the light output from the laser diode array (6,23,55), the optical fiber with respect to (10) is placed. It is less than one-half of the product of the numerical aperture and core diameter fiber (10), the product of the waist dimension of the first and the divergence half angle of the far field of the first, second divergence half angle of field of view far second the product of the dimensions of the waist is less than half of the product of the numerical aperture and core diameter.