phase matching

How is Phase Matching Achieved?

Phase matching can be achieved through several techniques:
1. Quasi-Phase Matching (QPM): This involves periodically modulating the material properties to compensate for phase mismatches.
2. Birefringent Phase Matching: Utilizing materials with different refractive indices along different axes to maintain phase coherence.
3. Waveguide Engineering: Designing waveguides with specific dimensions and materials to achieve phase matching for guided modes.

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