'Higher order modes' presentation slideshows

Wavefront Sensing II

998 views • 75 slides

VCSEL Reliability and Development of Robust Arrays

VCSEL Reliability and Development of Robust Arrays. Advantages and disadvantages of VCSELs Reliability theory Diagnostic techniques for VCSEL Failure Analysis ATLAS experience VCSEL failures Review failure rates for different systems Solutions Summary VCSEL reliability & ATLAS outlook.

1.19k views • 59 slides

Signal Degradation in Optical Fibers Dr Manoj Kumar Professor & Head(ECE)

Signal Degradation in Optical Fibers Dr Manoj Kumar Professor & Head(ECE). Signal Attenuation & Distortion in Optical Fibers . What are the loss or signal attenuation mechanism in a fiber? Why & to what degree do optical signals get distorted as they propagate down a fiber?

807 views • 55 slides

VCSEL Reliability & Understanding Failure Mechanisms under Humidity

VCSEL Reliability & Understanding Failure Mechanisms under Humidity. European VCSEL Day 2013 Tony Weidberg (Oxford) on behalf of the ATLAS collaboration. VCSELs @ LHC. VCSELs used for readout of all detector systems in the ATLAS experiment @ CERN LHC.

2k views • 55 slides

4. Optical Fibers

2.9k views • 49 slides

Electrical Tapes & Optical Links

Electrical Tapes & Optical Links. Electrical tapes Al/kapton tapes for SCT Wiggly tapes for SCT EC Lessons learned. Optical Links Survey reliability in ATLAS Focus on problematic systems Lessons learned and being learnt. Al/kapton Tapes. 50 um Al/50 um kapton

552 views • 41 slides

Improving the beam quality in LMA fibers by providing a passive ring in the cladding

Improving the beam quality in LMA fibers by providing a passive ring in the cladding. Emil Voiculescu,Technical University of Cluj, RO, Mircea Hotoleanu, Liekki Oy, FIN, Gabor Csipkes TUCN, RO. The problem.

437 views • 30 slides

HOM DIAGNOSTICS IN THIRD HARMONIC CAVITIES AT FLASH

HOM DIAGNOSTICS IN THIRD HARMONIC CAVITIES AT FLASH. Roger M. Jones University of Manchester/ Cockcroft Inst. Task 10.5 HOM Diagnostic in 3 rd Harmonic Cavities at FLASH. 10.5.1 HOM based B eam P osition M onitors (HOMBPM) 10.5.2 HOM based C avity D iagnostics (HOMCD)

467 views • 30 slides

ENE 428 Microwave Engineering

ENE 428 Microwave Engineering . Lecture 12 Power Dividers and Directional Couplers. 1. Power dividers and directional couplers . Passive components that are used for power division or combining. The coupler may be a three-port or a four-port component

510 views • 29 slides

PARALLEL-BAR RIDGED WAVEGUIDE DESIGNS

LHC-CC 11, CERN. 14-15 Nov ember 2011. PARALLEL-BAR RIDGED WAVEGUIDE DESIGNS. Acknowledgements. Subashini de Silva (ODU) HyeKyoung Park (JLab/ODU) Zenghai Li (SLAC) Lixin Ge (SLAC). Parallel Bar Cavity Activities at ODU/JLab. Deflecting Cavity

459 views • 29 slides

ENE 428 Microwave Engineering

ENE 428 Microwave Engineering . Lecture 12 Power Dividers and Directional Couplers. 1. Power dividers and directional couplers . Passive components that are used for power division or combining. The coupler may be a three-port or a four-port component

806 views • 29 slides

400 views • 28 slides

Squeezed light and GEO600

Squeezed light and GEO600. Simon Chelkowski 26.10.2006 LSC Meeting, Hannover. Outline . Introduction: Basic Idea of squeezed light in GW detection Estimated sensitivity increase for different scenarios Tasks to complete: Squeezing setup and integration into GEO setup

454 views • 27 slides

ERL RF Systems

515 views • 23 slides

Fiber Optics

Fiber Optics. FIBER PERFORMANCE. Fiber Optics. The purity of optical fiber is critical for the best transmission of an optical signal inside a fiber. Impurities are the unwanted things that can get into the fiber and become a product of its structure.

571 views • 23 slides

Nonlinear Oscillations of Levitated Gas Bubbles and Their Impact on Plasma Formation in Water

Nonlinear Oscillations of Levitated Gas Bubbles and Their Impact on Plasma Formation in Water. Bradley S. Sommers a John E. Foster b. (a) Dept. of Nuclear Engineering, University of Michigan, Ann Arbor, USA, bsso@umich.edu

305 views • 19 slides

Evaluation of EPI Approaches

Evaluation of EPI Approaches. Dennis Coyne 18 April 2003 EPI Design Review #2. Evaluation of EPI Approaches. HEPI is the default or primary approach MEPI was conceived as backup to reduce risk Both systems appear to meet requirements both systems have pros and cons

347 views • 17 slides

TCTP impedance

308 views • 15 slides

4GLS BBU

4GLS BBU. Emma Wooldridge. Background Threshold equation Methods of increasing the BBU threshold Future work. 4GLS Schematic. Multipass regenerative Beam Break Up is caused by interaction of the beam with dipole Higher Order Modes. Threshold current.

264 views • 14 slides

Christopher Glasman Manchester Christmas Meeting 2006

Higher Order Modes and Wake-Fields in Superconducting Accelerating Cavities for the International Linear Collider. Christopher Glasman Manchester Christmas Meeting 2006. We stretch to the Cockcroft Institute:. Daresbury Lab / Cockcroft Institute. Based on the TESLA design from DESY.

182 views • 8 slides