Abstract:
An exemplary embodiment of the disclosure provides a double fiber optic mode adapter including: a fiber core having a variable core diameter; a fiber cladding having a variable cladding size; a first input interface corresponding to a first core diameter and a first cladding size; a second input interface corresponding to a second core diameter and a second cladding size; a thermally-tapered region wherein the variable core diameter of the fiber core transitions from the first core diameter to the second core diameter and the variable cladding size of the fiber cladding transitions from the first cladding size to a third cladding size; and an etched tapered region wherein the variable core diameter of the fiber core is constant and the variable cladding size of the fiber cladding transitions from the third cladding size to the second cladding size.
Abstract:
A system is provided for combining laser light sources. The system includes: a stack of laser diode bar arrays, comprising two or more laser diode bar arrays, each laser diode bar array having multiple laser diodes; a multimode optical fiber; and a plurality of optical elements disposed between the stack of laser diode bar arrays and the multimode optical fiber, configured to direct light from the stack of laser diode bar arrays to the multimode optical fibers, the plurality of optical elements further including: a plurality of fast-axis collimating (FAC) lenses, wherein at least one FAC lens of the plurality of FAC lenses corresponds to each laser diode bar array. At least one FAC lens of the plurality of FAC lenses is misaligned with respect to the corresponding laser diode bar array. At least one misaligned FAC lens has at least one of a translational position and a orientation relative to its corresponding laser diode bar array different from another FAC lens of the plurality of FAC lenses relative to its corresponding laser diode bar array.
Abstract:
Exemplary embodiments of the disclosure include a fiber optic amplifier system and a fiber optic oscillator system having a first stage, comprising a first core fiber having a first core diameter and a first cladding size; a second stage, comprising a second core fiber having a second core diameter and a second cladding size; and a double mode adapter connecting the first stage to the second stage, wherein the double mode adapter is configured to provide transitions for the cores and the claddings of the first and second core fibers.
Abstract:
Optical energy in excess of that which is properly coupled into the core of an optical fiber is non-destructively redirected and benignly dissipated so as to minimize damage in a fiber coupled system.