000221745 001__ 221745
000221745 005__ 20180128061434.0
000221745 0247_ $$2doi$$a10.1002/lpor.201600006
000221745 022__ $$a1863-8880
000221745 02470 $$2ISI$$a000379958800008
000221745 037__ $$aARTICLE
000221745 245__ $$aFrequency comb generation in the green using silicon nitride microresonators
000221745 260__ $$aWeinheim$$bWiley-VCH Verlag Berlin$$c2016
000221745 269__ $$a2016
000221745 300__ $$a8
000221745 336__ $$aJournal Articles
000221745 520__ $$aOptical frequency combs enable precision measurements in fundamental physics and have been applied to a growing number of applications, such as molecular spectroscopy, LIDAR and atmospheric trace-gas sensing. In recent years, the generation of frequency combs has been demonstrated in integrated microresonators. Extending their spectral range to the visible is generally hindered by strong normal material dispersion and scattering losses. In this paper, we report the first realization of a green-light frequency comb in integrated high-Q silicon nitride (SiN) ring microresonators. Third-order optical non-linearities are utilized to convert a near-infrared Kerr frequency comb to a broadband green light comb. The 1-THz frequency spacing infrared comb covers up to 2/3 of an octave, from 144 to 226 THz (or 1327-2082 nm), and the simultaneously generated green-light comb is centered around 570-580 THz (or 517-526 nm), with comb lines emitted down to 517 THz (or 580 nm) and up to 597 THz (or 502 nm). The green comb power is estimated to be as high as -9.1 dBm in the bus waveguide, with an on-chip conversion efficiency of -34 dB. The proposed approach substantiates the feasibility of on-chip optical frequency comb generation expanding to the green spectral region or even shorter wavelengths.
000221745 6531_ $$aOptical frequency comb
000221745 6531_ $$aSilicon nitride
000221745 700__ $$aWang, Leiran$$uUniv Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
000221745 700__ $$aChang, Lin$$uUniv Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
000221745 700__ $$aVolet, Nicolas$$uUniv Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
000221745 700__ $$0247648$$aPfeiffer, Martin H. P.$$g203731
000221745 700__ $$0242444$$aZervas, Michael$$g176318
000221745 700__ $$0248824$$aGuo, Hairun$$g253712
000221745 700__ $$0244694$$aKippenberg, Tobias J.$$g182444
000221745 700__ $$aBowers, John E.$$uUniv Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
000221745 773__ $$j10$$k4$$q631-638$$tLaser & Photonics Reviews
000221745 909C0 $$0252348$$pLPQM
000221745 909CO $$ooai:infoscience.tind.io:221745$$particle$$pSTI$$pSB
000221745 917Z8 $$x222695
000221745 937__ $$aEPFL-ARTICLE-221745
000221745 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000221745 980__ $$aARTICLE