Abstract
As a tool to evaluate the performance of a quasi-phase-matched device, we propose a contour map of conversion efficiency as a function of input power and phase mismatch. We demonstrate, using numerical analyses, that the map reflects the error of domain lengths; the map of a device with random duty cycle error is essentially similar to that of an ideal device. On the other hand, the map of a device with random period error is severely deformed, suggesting the necessity of simultaneous tuning of phase mismatch and input power.
© 1999 Optical Society of America
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