Phase-dependent interference between frequency doubled comb lines in a chi((2)) phase-matched aluminum nitride microring
- Phase-dependent interference between frequency doubled comb lines in a chi((2)) phase-matched aluminum nitride microring
- 정호중; Xiang Guo; Na Zhu; Scott B. Papp; Scott A. Diddams; Hong X. Tang
- Issue Date
- Optics letters
- VOL 41, NO 16-3750
- Nonlinear optical conversion with frequency combs is important for self-referencing and for generating shorter wavelength combs. Here we demonstrate efficient frequency comb doubling through the combination of second-harmonic generation (SHG) and sum-frequency generation (SFG) of an input comb with a high Q, phase-matched chi((2)) microring resonator. Phase coherence of the SHG and SFG nonlinear conversion processes is confirmed by sinusoidal phase-dependent interference between frequency doubled comb lines.
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