Subwavelength-grating metamaterial integrated devices for the near- and mid-infrared wavelengths

The subwavelength patterning of planar structures is now widely used in silicon photonics, enabling the synthesis of metamaterials with engineered optical properties, including refractive index, dispersion, and anisotropy. A wide range of integrated devices based on subwavelength grating (SWG) metamaterials have been demonstrated at telecom wavelengths, some with unprecedented performance. The benefits of SWG metamaterials can be leveraged not only in the typical telecom near-infrared bands, but also at the longer mid-infrared wavelengths. In this invited presentation, we will review our latest developments in SWG-based silicon and germanium photonic devices for the near- and the midinfrared.

[1]  Siegfried Janz,et al.  Sub-wavelength grating mode transformers in silicon slab waveguides. , 2009, Optics express.

[2]  W. Freude,et al.  In situ 3D nanoprinting of free-form coupling elements for hybrid photonic integration , 2018 .

[3]  T. Hall,et al.  Refractive Index Engineering With Subwavelength Gratings in Silicon Microphotonic Waveguides , 2011, IEEE Photonics Journal.

[4]  I Molina-Fernández,et al.  Suspended silicon mid-infrared waveguide devices with subwavelength grating metamaterial cladding. , 2016, Optics express.

[5]  P. Cheben,et al.  Subwavelength waveguide grating for mode conversion and light coupling in integrated optics. , 2006, Optics express.

[6]  Jens H. Schmid,et al.  Subwavelength integrated photonics , 2018, Nature.

[7]  Robert Halir,et al.  Subwavelength-Grating Metamaterial Structures for Silicon Photonic Devices , 2018, Proceedings of the IEEE.

[8]  J. Leuthold,et al.  Compact, ultra-broadband plasmonic grating couplers. , 2019, Optics express.

[9]  Theodor Tamir,et al.  Analysis and Design of Grating Couplers , 1980 .

[10]  Guo-Qiang Lo,et al.  Wide bandwidth and high coupling efficiency Si3N4-on-SOI dual-level grating coupler. , 2014, Optics express.

[11]  Robert Halir,et al.  Suspended Germanium Waveguide for Infrared Wavelengths , 2019, 2019 21st International Conference on Transparent Optical Networks (ICTON).

[12]  Ray T. Chen,et al.  Mid-infrared silicon photonic waveguides and devices [Invited] , 2018 .

[13]  Alejandro Ortega-Moñux,et al.  Fourier Based Combined Techniques to Design Novel Sub-Wavelength Optical Integrated Devices , 2012 .

[14]  Richard A. Soref,et al.  Silicon waveguided components for the long-wave infrared regionThis article was submitted to the spe , 2006 .

[15]  Siegfried Janz,et al.  Subwavelength Grating Structures in Silicon-on-Insulator Waveguides , 2008 .

[16]  Pavel Cheben,et al.  Broadband fiber-chip zero-order surface grating coupler with 0.4  dB efficiency. , 2016, Optics letters.

[17]  R. Soref.  Mid-infrared photonics in silicon and germanium , 2010 .

[18]  Daniel Benedikovic,et al.  Germanium-based integrated photonics from near- to mid-infrared applications , 2018, Nanophotonics.

[19]  Anwar Faizd Osman,et al.  Suspended silicon waveguides for long-wave infrared wavelengths. , 2017, Optics letters.

[20]  Cale M. Gentry,et al.  75% efficient wide bandwidth grating couplers in a 45 nm microelectronics CMOS process , 2015, 2015 IEEE Optical Interconnects Conference (OI).

[21]  R. Baets,et al.  Compact efficient broadband grating coupler for silicon-on-insulator waveguides. , 2004, Optics letters.

[22]  P. Cheben,et al.  Gradient-index antireflective subwavelength structures for planar waveguide facets. , 2007, Optics letters.

[23]  Steven G. Johnson,et al.  Photonic Crystals: Molding the Flow of Light , 1995 .

[24]  Cosimo Lacava,et al.  Coupling strategies for silicon photonics integrated chips [Invited] , 2019, Photonics Research.

[25]  Pavel Cheben,et al.  Mid‐infrared suspended waveguide platform and building blocks , 2019, IET Optoelectronics.

[26]  G. Mashanovich,et al.  Design of a suspended germanium micro-antenna for efficient fiber-chip coupling in the long-wavelength mid-infrared range. , 2019, Optics express.