公开(公告)号：DE112011101187B4

公开(公告)日：2014-03-13

申请号：DE112011101187

申请日：2011-05-24

Applicant: IBM

Inventor： RYLYAKOV ALEXANDER ,  GREEN WILLIAM MICHAEL ,  SCHOW CLINT L ,  VLASOV YURII

IPC: G02F1/01 ,  G02F1/025 ,  H04B3/40

Abstract: Verfahren zum Realisieren einer Breitband-Übertragungsleitung (104), aufweisend: Ausgleichen der Kapazität eines optischen Modulators einer Breitband-Übertragungsleitung (104), um eine Leitungswellenimpedanz für die Übertragungsleitung (104) zu erzielen, indem ein diskreter Induktor (102, L) zwischen benachbarten Segmenten (106) der Übertragungsleitung (104) angeschlossen wird; und Abstimmen eines Regelkreises, um die Geschwindigkeit zwischen einem elektrischen Signal und einem optischen Signal abzugleichen, die sich auf der Übertragungsleitung (104) bewegen.

公开(公告)号：DE112011101187T8

公开(公告)日：2013-03-21

申请号：DE112011101187

申请日：2011-05-24

Applicant: IBM

Inventor： RYLYAKOV ALEXANDER ,  GREEN WILLIAM MICHAEL ,  SCHOW CLINT L ,  VLASOV YURII

IPC: G02F1/01 ,  G02F1/025 ,  H04B3/40

公开(公告)号：GB2494497B

公开(公告)日：2013-11-27

申请号：GB201210868

申请日：2012-06-20

Applicant: IBM

Inventor： SADHU BODHISATWA ,  PLOUCHART JEAN-OLIVIER ,  TIERNO JOSE ,  RYLYAKOV ALEXANDER ,  REYNOLDS SCOTT KEVIN

IPC: H03B5/12

Abstract: There is provided a tank based oscillator. The oscillator includes one or more active devices, one or more passive devices, and a tank circuit decoupled from the active devices using at least one of the one or more passive devices. A coupling ratio between the tank circuit and the one or more active devices is set such that a maximum value of an oscillation amplitude of the tank circuit is limited based upon a breakdown of only the one or more passive devices.

公开(公告)号：GB2494497A

公开(公告)日：2013-03-13

申请号：GB201210868

申请日：2012-06-20

Applicant: IBM

Inventor： SADHU BODHISATWA ,  PLOUCHART JEAN-OLIVIER ,  TIERNO JOSE ,  RYLYAKOV ALEXANDER ,  REYNOLDS SCOTT KEVIN

IPC: H03B5/12

Abstract: An oscillator includes an LC tank circuit 140, active devices 131 & 132 and capacitors (passive devices) Ct and Cd. The tank circuit 140 is indirectly coupled to the active devices 131, 132 via the capacitors. The amplitude of the oscillation in the tank circuit 140 is reduced by a divider formed by capacitors Cd and Ct (see fig.2) before application to the gates of the active devices 131 & 132. The division ratio ( coupling ratio ) between the tank circuit 140 and the active devices 131, 132 allows an amplitude of oscillation in the tank circuit that would otherwise cause breakdown of the active devices. The maximum amplitude is now limited by the breakdown of the passive devices. In an embodiment, the oscillation amplitude may be 40V and the capacitive divider reduces and decouples this from the active devices which may have breakdown voltages of around 1V. The use of a high amplitude oscillation in the tank circuit gives low phase noise. It is also disclosed that the oscillation amplitude is highest and phase noise lowest if the biasing inductors 111 & 112 are tuned just below the oscillation frequency of the tank circuit 140.

公开(公告)号：GB2494035A

公开(公告)日：2013-02-27

申请号：GB201214380

申请日：2011-05-24

Applicant: IBM

Inventor： RYLYAKOV ALEXANDER ,  SCHOW CLINT LEE ,  GREEN WILLIAM MICHAEL ,  VLASOV YURIL

IPC: G02F1/01 ,  G02F1/025 ,  H04B3/40

Abstract: A transmission line (304) includes a plurality of segments forming an electrical path (203) and a continuous optical waveguide (205) passing through the segments. Discrete inductors (102) are formed between and connect adjacent segments. The inductors (102) are formed in a plurality of metal layers of an integrated circuit so as to balance the capacitance of an optical modulator which includes the transmission line (304) formed on the optical waveguide (205), thereby achieving a predetermined characteristic impedance for the transmission line. A delay locked loop (305) is used to control varactors (302) so as to match the delays of the optical and electrical signals. Optical waveguide segments (210) may be used to match the delays.