Abstract

Crystal-cored fibers using organic materials for frequency doubling have been reported.^1-3 However, semiconductor lasers have not been used as fundamental waves. Here we report the second harmonic generation of an 884-nm cw semiconductor laser using an organic crystal-cored fiber. The organic material used is a newly developed 3,5-dimethyl-l-(4-nitrophenyl) pyrazole (DMNP)⁴ having a relatively large nonlinear optical coefficient.

© 1990 Optical Society of America