Title

Cascaded Integration Of Optical Waveguides With Third-Order Nonlinearity With Lithium Niobate Waveguides On Silicon Substrates

Keywords

nanophotonics; nonlinear optics; Photonic integrated circuits; silicon photonics

Abstract

The cascaded integration of optical waveguides with third-order optical nonlinearity (χ(3) susceptibilitiy) with lithium niobate (LiNbO3) waveguides is demonstrated on the same chip. Thin-film (LiNbO3) and chalcogenide (ChG) glass (Ge23Sb7S70) waveguides are integrated on silicon (Si) substrates. An optical mode transition between the two waveguides is achieved through low-loss mode-converting tapers, with a measured loss of ∼1.5 dB for transverse-electric and ∼1.75 dB for transverse-magnetic input polarizations. For nonlinear characterization, wavelength conversion via four-wave mixing is demonstrated on the ChG-LN waveguides. This platform provides an efficient method for the utilization of second- and third-order optical nonlinearities on the same chip, rendering it ideal for nonlinear applications such as stabilized octave-spanning optical frequency comb generation.

Publication Date

6-1-2018

Publication Title

IEEE Photonics Journal

Volume

10

Issue

3

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/JPHOT.2018.2827995

Socpus ID

85045755644 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85045755644

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