Figure 2 | Raman response of X-cut TFLN and soliton microcomb generation. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Figure 2 | Raman response of X-cut TFLN and soliton microcomb generation.

Caption

Figure 2 | Raman response of X-cut TFLN and soliton microcomb generation. a, Polarization-dependent Raman spectra of X-cut TFLN, with the orientation angle (defined as the angle between the pump laser polarization and the LiNbO3 optical axis) varying from 0∘ to 90∘. b, Raman peak intensity of vibrational modes A(TO)1 and A(TO)4 as a function of the orientation angle. e-light: extraordinary light, o-light: ordinary light. c, Microscope image of X-cut LiNbO3 racetrack microresonators with e-light dominance. d, Optical spectrum of Raman lasing and four-wave mixing generated in the microresonator shown in (c). e, Microscope image of X-cut LiNbO3 racetrack microresonators with o-light dominance. f, Optical spectrum of soliton microcomb generated in the microresonator shown in (e). g, Electrical spectrum of the soliton repetition frequency (25.037 GHz). RBW: resolution bandwidth. h, Single-sideband phase noise of the soliton repetition frequency.

Credit

Binbin Nie et al.

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