[1] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA
[2] Sandia Natl Labs, Livermore, CA 94551 USA
[3] nLight Corp, Vancouver, WA 98665 USA
[4] US Mil Acad, West Point, NY 10996 USA
[5] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore