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SUMMARY:Ultra-Low Loss Si3N4 Integration Platform for Passive and Active C
 omponents for Next Generation Photonic Integrated Circuits - Prof Daniel J
 . Blumenthal\, University of California Santa Barbra
DTSTART:20170727T093000Z
DTEND:20170727T103000Z
UID:TALK74711@talks.cam.ac.uk
CONTACT:Michael Crisp
DESCRIPTION:As we head towards ultra scale capacity networks and communica
 tions systems\, the network architecture\, system design and engineering\,
  bandwidth and capacity scaling\, power dissipation and form factor\, and 
 other scaling issues at the physical and higher layers will increasingly b
 enefit from next generation photonics.\n \nProgress towards the realizatio
 n of a new class of ultra low-loss Si3N4 planar waveguide technologies wil
 l be described. This platform has yielded a wealth of active and passive b
 uilding blocks with on-chip waveguide losses lower than 0.45dB/m and can b
 e integrated with Silicon Photonics and InP. Important system scaling issu
 es like bandwidth\, form factor\, power density\, the power spreading prob
 lem and power management\, system design\, bandwidth management and manufa
 cturability are addressed. \nThe next generation ULLW platform opens up a 
 wide array of functions and applications that require very low loss integr
 ated optical circuits to perform equivalent functions at lower power consu
 mption than purely electronic solutions and offer a complementary integrat
 ion feature set to silicon photonics and InP PICs that addresses shortcomi
 ngs of using these technologies alone. A wide range of passive and active 
 components have been demonstrated including long delay and tunable delay l
 ines\, 3D photonic chip stacking\, low kappa long gratings\, ultra high ex
 tinction ratio tunable filters\, erbium doped waveguide amplifiers\, reson
 ators\, switches\, vertical couplers and mode matchers and component appli
 cations including 1.55 and 1.31 um and narrow linewidth lasers\, adaptive 
 dispersion compensators and transversal optical filters\, optical regenera
 tors and optical signal processing. \nWe will also talk briefly about next
  generation technology … what lies beyond Silicon Photonics and what adv
 antages might exist further down the road.\n\nBio: \nDaniel J. Blumenthal 
 is Professor of ECE at UCSB\, Director of the Terabit Optical Ethernet Cen
 ter and heads the Optical Communications and Photonics Networks (OCPN) gro
 up (www.ocpn.ece.ucsb.edu). He co-Founded Packet Photonics and Calient Net
 works\, holds 19 US patents and has over 400 publications in optical commu
 nications\, optical packet switching\, gyro sensors\, InP/silicon-photonic
  integration\, ultra low-loss waveguides and integration technology\, nano
 -photonic devices and optical signal processing. He co-authored Tunable La
 ser Diodes and Related Optical Sources (IEEE–Wiley\, 2005). Dr. Blumenth
 al holds a PhD from the University of Colorado Boulder. He is Fellow of th
 e IEEE and OSA and is recipient of a Presidential Early Career for Scienti
 sts and Engineers (PECASE) award and National Science Foundation Young Inv
 estigator and Office of Naval Research Young Investigator Program awards. 
 He served on the National Lambda Rail Board of Directors and held an elect
 ed Researcher Seat on the Internet-2 Architecture & Operations Advisory Co
 uncil.\n
LOCATION:Electrical Engineering Division Seminar Room\, 9 J J Thomson Aven
 ue
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