PPT-Tunable Directional Coupler

Monireh Moayedi Pour Fard Monirehmoayedipourfardmailmcgillca Photonics system group McGill University July 2012 Directional Coupler has many applications in photonic systems and optical . It i not necessary to lift the chestpiece from the patient index the stem of t he chestpiece and reposition Ra ther use light contact with the chestpiece to hear lowfrequency sounds b ell mode Use firm pressure to hear highfrequency sounds diaphragm Here we first develop the basic understanding of the directional coupler and then we will study its implementation in an integrated form The directional coupler consists of two channel optical waveguides placed close to each other so that their fiel Merrimac directional couplers are precision devices carefully designed for monitoring incident and reflected power Merrimac directional couplers are available in four different classes 1 Three port directional couplers 2 Four port bidirectional coup 00 005 2 1 3 4 in mm 1 2 3 4 Output Input Coupling Terminate Directional Input Mark 050 015 025 015 010 040 max 050 005 030 015 010 010 005 LDC18Q Series in mm 1 Main OUT 2 IN 3 Coupled OUT 4 Terminate A Directional Input Mark 16 01 1 2 4 3 09 01 Microwave Engineering . Lecture 12. . Power Dividers and Directional Couplers. 2. 2. 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. The preceding MAC protocols have been designed for omni-directional transmissions, and may not fully exploit the potentialsof directional antennas. The physical CS may suffer fromdirectional transmis Presented by,. -Shreyanka Subbarayappa,. . Sadaf. . Ahamed. ,. . Tejas. . Sathe. ,. . Priyadarshini. . Anjanappa. K. R. RAO. 1. Conventional Framework for Image Coding [9] . The 2-D discrete cosine transform (DCT) of a square or a rectangular block shape is used for almost all . Preparation of. . crab cavities for KEKB. RF aging of input couplers.. 17. th. September 2009 , LHC-CC09 at CERN. K.Nakanishi. Fabrication Procedure of Crab Cavity. Nb Sheet. Half Cell Hydro-forming. iPrint* Epson’s original ink tank system printers now bring even better performance with a blazing print speed of up to 34ppm/cpm for round-the-clock businesses such as hotels, hospitals and reta Veterinary Assistant. Level 2. Latissa Higgins, . LVT. Kathleen . Magsam. , LVT. Objectives. By the end of this lesson, you will be able to:. Use correct directional terms to describe the position of an animal.. The tunable laser could be set to any desired wavelength either in the factory or in the field by a software command.. The performance parameters are:. Power. Spurious mode suppression. Wavelength stability. or . color, in a given spectral range. .. As such, . these . quantum devices have found numerous applications in many diverse fields. .. In particular, tunable lasers have played a crucial and sustained role in advancements of fundamental physics and science. Lecture 12. . Power Dividers and Directional Couplers. 2. 2. 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. Basic properties of combiners and dividers. EEE 211 Microwave Engineering. Power Dividing/Combining. It seems a simple task…. But it is difficult because we want to divider to be matched, reciprocal and lossless..