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Second harmonic generation in ridge Bragg reflection waveguides
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View: Figures


Image of FIG. 1.
FIG. 1.

Intensity maps of the modes used in this work. The dimensions of the fabricated structure are indicated.

Image of FIG. 2.
FIG. 2.

Phase-matching tuning curve revealing a distinct peak at with FWHM of . The peak is modulated by FP fringes of the fundamental. The phase-matching peak is shown to redshift, by the value , with increasing temperature at a rate of (inset, black dots). The gray line (inset) is the theoretical simulation. Powers shown are inside the sample.

Image of FIG. 3.
FIG. 3.

Simulated ridge width vs phase-matching wavelength shift from the case of the slab, . For a waveguide width , fabrication-induced variation in the mask width can account for spectral broadening. Inset: comparison second-harmonic spectra at phase-matching for the slab (left) and ridge (right) cases.

Image of FIG. 4.
FIG. 4.

Spectra of a typical input fundamental (FN), unphase-matched (SH1), and phase-matched second harmonics (SH2). The input fundamental power vs output second-harmonic power at the phase-matched wavelength has the expected slope of on a log-log plot (inset).


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Second harmonic generation in ridge Bragg reflection waveguides