R
R. Frahm
Researcher at Alcatel-Lucent
Publications - 28
Citations - 947
R. Frahm is an academic researcher from Alcatel-Lucent. The author has contributed to research in topics: Optical switch & Insertion loss. The author has an hindex of 15, co-authored 28 publications receiving 914 citations. Previous affiliations of R. Frahm include Bell Labs & European Southern Observatory.
Papers
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Journal ArticleDOI
1100 x 1100 port MEMS-based optical crossconnect with 4-dB maximum loss
Jungsang Kim,Carl J. Nuzman,Bharat Kumar,Daniel Francis Lieuwen,J.S. Kraus,A. Weiss,C.P. Lichtenwalner,A.R. Papazian,R. Frahm,Nagesh R. Basavanhally,D.A. Ramsey,Vladimir A. Aksyuk,Flavio Pardo,Maria Elina Simon,Victor A. Lifton,Ho Bun Chan,M. Haueis,A. Gasparyan,Herbert Shea,S. Arney,C. Bolle,Paul Kolodner,Roland Ryf,David T. Neilson,John Vanatta Gates +24 more
TL;DR: In this article, a microelectromechanical system-based beam steering optical crossconnect switch core with port count exceeding 1100 was presented, featuring mean fiber-to-fiber insertion loss of 2.1 dB and maximum insertion loss 4.0 dB across all possible connections.
Journal ArticleDOI
Beam-steering micromirrors for large optical cross-connects
Vladimir A. Aksyuk,Flavio Pardo,D. Carr,Dennis S. Greywall,Ho Bun Chan,Maria Elina Simon,A. Gasparyan,Herbert Shea,Victor A. Lifton,C. Bolle,S. Arney,R. Frahm,M. Paczkowski,M. Haueis,R. Ryf,David T. Neilson,Jungsang Kim,Clinton Randy Giles,David J. Bishop +18 more
TL;DR: In this paper, Si-micromachined two-axis beam-steering micromirrors and their performance in 256/spl times/ 256- and 1024 /spl times / 1024-port large optical cross-connects (OXCs) are described.
Proceedings ArticleDOI
1296-port MEMS transparent optical crossconnect with 2.07 petabit/s switch capacity
Roland Ryf,Jungsang Kim,J.P. Hickey,Alan H. Gnauck,Dustin W. Carr,Flavio Pardo,C. A. Bolle,R. Frahm,Nagesh R. Basavanhally,C. Yoh,David A. Ramsey,Robert Albert Boie,R. George,J. Kraus,C. Lichtenwalner,R. Papazian,John Vanatta Gates,Herbert Shea,Arman Gasparyan,V. Muratov,J.E. Griffith,J.A. Prybyla,Suresh Goyal,Carolyn D. White,M.T. Lin,R. Ruel,C. Nijander,Susanne Arney,David T. Neilson,David J. Bishop,Paul Kolodner,S. Pau,Carl J. Nuzman,A. Weis,B. Kumar,D. Lieuwen,Vladimir A. Aksyuk,Dennis S. Greywall,T. C. Lee,H.T. Soh,William M. Mansfield,S. Jin,W.Y.C. Lai,H.A. Huggins,D.L. Barr,Raymond A. Cirelli,Gregory R. Bogart,K. Teffeau,R. Vella,Hareesh Mavoori,Ainissa G. Ramirez,N.A. Ciampa,F. Klemens,M.D. Morris,T. Boone,J.Q. Liu,J.M. Rosamilia,Clinton Randy Giles +57 more
TL;DR: In this article, a 1296-port MEMS transparent optical crossconnect with 5.1dB insertion loss at 1550 nm is reported, and the worst-case optical crosstalk in a fabric was n38 dB and nominal switching rise/fall times were 5 ms.
Journal ArticleDOI
Effects of electrical leakage currents on MEMS reliability and performance
Herbert Shea,Arman Gasparyan,Ho Bun Chan,Susanne Arney,R. Frahm,Daniel Lopez,Sungho Jin,R.P. McConnell +7 more
TL;DR: In this article, the reliability and performance implications of leakage currents in the bulk and on the surface of the dielectric insulating the drive (or sense) electrodes from one another are discussed.
Journal ArticleDOI
238 x 238 micromechanical optical cross connect
Vladimir A. Aksyuk,S. Arney,Nagesh R. Basavanhally,David J. Bishop,C. Bolle,C.C. Chang,R. Frahm,A. Gasparyan,J.V. Gates,R. George,Clinton Randy Giles,Jungsang Kim,Paul Kolodner,T.M. Lee,David T. Neilson,C. Nijander,Carl J. Nuzman,Mark Anthony Paczkowski,A.R. Papazian,Flavio Pardo,David A. Ramsey,R. Ryf,R.E. Scotti,Herbert Shea,Maria Elina Simon +24 more
TL;DR: In this article, a 238/spl times/238 beam-steering optical cross-connector constructed using surface micromachined mirrors is described. But the performance of the beamforming was not evaluated.