An octave-spanning mid-infrared frequency comb generated in a silicon nanophotonic wire waveguide

被引：205

作者：

Kuyken, Bart ^{[1
,2
]}

Ideguchi, Takuro ^{[3
]}

Holzner, Simon ^{[3
,4
]}

Yan, Ming ^{[3
,4
]}

Haensch, TheodorW. ^{[3
,4
]}

Van Campenhout, Joris ^{[5
]}

Verheyen, Peter ^{[5
]}

Coen, Stephane ^{[6
]}

Leo, Francois ^{[1
,2
]}

Baets, Roel ^{[1
,2
]}

Roelkens, Gunther ^{[1
,2
]}

Picque, Nathalie ^{[3
,7
]}

机构：

[1] Univ Ghent, IMEC, Dept Informat Technol, Photon Res Grp, B-9000 Ghent, Belgium

[2] Univ Ghent, Ctr Nano & Biophoton NB Photon, B-9000 Ghent, Belgium

[3] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

[4] Univ Munich, Fak Phys, D-80799 Munich, Germany

[5] IMEC, B-3001 Louvain, Belgium

[6] Univ Auckland, Dept Phys, Auckland, New Zealand

[7] CNRS, Inst Sci Mol Orsay, F-91405 Orsay, France

来源：

NATURE COMMUNICATIONS | 2015年 / 6卷

关键词：

DOPED FIBER LASER; SUPERCONTINUUM GENERATION; PHOTONICS; CHALCOGENIDE; ABSORPTION; CYCLE; BAND;

D O I：

10.1038/ncomms7310

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Laser frequency combs, sources with a spectrum consisting of hundred thousands evenly spaced narrow lines, have an exhilarating potential for new approaches to molecular spectroscopy and sensing in the mid-infrared region. The generation of such broadband coherent sources is presently under active exploration. Technical challenges have slowed down such developments. Identifying a versatile highly nonlinear medium for significantly broadening a mid-infrared comb spectrum remains challenging. Here we take a different approach to spectral broadening of mid-infrared frequency combs and investigate CMOS-compatible highly nonlinear dispersion-engineered silicon nanophotonic waveguides on a silicon-on-insulator chip. We record octave-spanning (1,500-3,300 nm) spectra with a coupled input pulse energy as low as 16 pJ. We demonstrate phase-coherent comb spectra broadened on a room-temperature-operating CMOS-compatible chip.

引用

页数：6

共 39 条

[1] Silicon-on-sapphire integrated waveguides for the mid-infrared [J].