Abstract

Mid-infrared (MIR) integrated waveguides with strong local field enhancement and relatively low loss have shown their potential in nonlinear optical applications. We present a novel highly nonlinear silicon hybrid waveguide by setting an insulator-metal-insulator structure with [2-[4-(dimethylamino)phenyl]-3-([4-(dimethylamino)phenyl]ethynyl)buta-1,3-diene-1,1,4,4-tetracarbonitrile] (DDMEBT) and silver materials into the silicon slot. The mode field is strongly confined in the DDMEBT layers via the surface plasmon polariton effect. Two rectangular silicon nanobridges are used to further confine the optical field and reduce the loss simultaneously. The waveguide dimensions are optimized to obtain a figure of merit as high as 0.55 at 2.1 μm and a zero-dispersion wavelength of 2.06 μm. In a 6.6-mm-long waveguide, a maximum four-wave mixing efficiency of 6.65  dB and a bandwidth of 512 nm (1.894–2.406 μm) can be simultaneously obtained, pumped by a 2.104-μm source with a power of only 500 mW. Our designed waveguide exhibits excellent overall performance for nonlinear optical applications such as all-optical signal processing in the MIR band.

© 2018 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
High nonlinear figure-of-merit amorphous silicon waveguides

J. Matres, G. C. Ballesteros, P. Gautier, J-M Fédéli, J. Martí, and C. J. Oton
Opt. Express 21(4) 3932-3940 (2013)

Design of mid-infrared nonlinear silicon–germanium waveguides for broadband/discrete-band wavelength conversion

Dongsheng Lyu, Qiang Jin, and Shiming Gao
J. Opt. Soc. Am. B 35(4) 741-751 (2018)

Highly nonlinear hybrid silicon-plasmonic waveguides: analysis and optimization

Alexandros Pitilakis and Emmanouil E. Kriezis
J. Opt. Soc. Am. B 30(7) 1954-1965 (2013)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (10)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription