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Guided wave opto-acoustic device

Patent ·
OSTI ID:1239677

The various technologies presented herein relate to various hybrid phononic-photonic waveguide structures that can exhibit nonlinear behavior associated with traveling-wave forward stimulated Brillouin scattering (forward-SBS). The various structures can simultaneously guide photons and phonons in a suspended membrane. By utilizing a suspended membrane, a substrate pathway can be eliminated for loss of phonons that suppresses SBS in conventional silicon-on-insulator (SOI) waveguides. Consequently, forward-SBS nonlinear susceptibilities are achievable at about 3000 times greater than achievable with a conventional waveguide system. Owing to the strong phonon-photon coupling achievable with the various embodiments, potential application for the various embodiments presented herein cover a range of radiofrequency (RF) and photonic signal processing applications. Further, the various embodiments presented herein are applicable to applications operating over a wide bandwidth, e.g. 100 MHz to 50 GHz or more.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
9,268,092
Application Number:
14/055,774
OSTI ID:
1239677
Country of Publication:
United States
Language:
English

References (5)

Ultra-low loss photonic integrated circuit with membrane-type photonic crystal waveguides journal January 2003
Tailoring optical forces in waveguides through radiation pressure and electrostrictive forces journal January 2010
Slow light in photonic crystal waveguides journal April 2007
Giant Enhancement of Stimulated Brillouin Scattering in the Subwavelength Limit journal January 2012
Tailorable stimulated Brillouin scattering in nanoscale silicon waveguides journal June 2013

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