Five-layer nonlinear waveguide for second harmonic generation

Duguay, M. A.; Weiner, J. S.
September 1985
Applied Physics Letters;9/15/1985, Vol. 47 Issue 6, p547
Academic Journal
We propose a new two-coupled-waveguide structure for second harmonic generation. An input TEω0 mode is phase matched to a harmonic TM2ω1 mode by varying the separation between the guides. Calculation of conversion efficiency in an AlGaAs structure gives 12% for 10 mW of input power at 1.3 μ over a 2-mm phase-matched length.


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