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Study of Laser Diode and Edfa $111.53 This book basically gives the over view about The properties of erbiumdoped fiber amplifier (EDFA) such as gain and noise figure have been studied. By determining the characteristics of the 980nm, 1480nm 1550nm laser sources and ASE (amplified spontaneous emission) at the output of the amplifier used to determine the gain and noise figure of EDFA. This model allows to follow the signal (1550nm), pump (980nm) and ASE as they propagate along the fiber and determine population inversion .The both forward and backward propagation ASE are important in determining the overall gain and noise figure. For the amplification of more than 80 channels the DWDM (Dense Wavelength Division Multiplexing) has required CBand (15251565)nm and LBand (15651610)nm EDFA.We show that a flat gain spectrum can be achieved in the range from 1565 to 1610 nm when the EDF length, pump power and pump configuration are appropriately chosen. Special care must be taken when selecting the EDF length. Author: Kumar, Pankaj/ Kumar, Chakresh/ Chack, Devendra Binding Type: Paperback Number of Pages: 68 Publication Date: 2011/06/19 Language: English Dimensions: 9.02 x 5.98 x 0.16 inches |
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High Power Diode Lasers: Technology and Applications $511.65 This book summarizes a five year research project, as well as subsequent results regarding high power diode laser systems and their application in materials processing. The text explores the entire chain of technology, from the semiconductor technology, through cooling mounting and assembly, beam shaping and system technology, to applications in the processing of such materials as metals and polymers. Includes theoretical models, a range of important parameters and practical tips. Author: Bachmann, Friedrich/ Loosen, Peter/ Poprawe, Reinhart Series Title: Springer Series in Optical Sciences Series Number: 128 Binding Type: Paperback Number of Pages: 560 Publication Date: 2010/11/29 Language: English Dimensions: 9.21 x 6.14 x 1.14 inches |
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Simulation of Ingan Blue Laser Diode $172.06 In this book, the design of InGaN LDs structures including multi quantum wells (MQWs) active region device are described and investigated by integrated system engineering technology computer aided design (ISE TCAD) device simulator. The parameters of the LDs structures are varied and optimized for high performance. This optimization study involves aspects such as thickness of active region, doping, thickness of stopper layer region, thickness of quantum wells and quantum barriers, number of quantum wells and several approaches to improve and achieve high efficiency, low threshold current and high output power of InGaN LDs. The basic LDs structures treated here are FabryPerot type InGaN double heterostructure (DH), separate confinement heterostructure (SCH) and multi quantum wells (MQWs).High performance LD has been obtained by using multi quantum wells incorporated with the optimized parameters. The lowest threshold current, higher external quantum efficiency and characteristic temperature are obtained when the number of InGaN well layers is two, at our laser emission wavelength of 415 nm, which is related to the problem of inhomogeneous carrier. Author: Thahab, Sabah Binding Type: Paperback Number of Pages: 232 Publication Date: 2011/01/31 Language: English Dimensions: 5.98 x 9.00 x 0.53 inches |
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Lenovo 43N3264 DVD-Writer - External $88.99 0.83" 1 Year Limited 12.30 oz 2 MB 24x 43N3264 43N3264 8x DVD±RW Drive 5.71" 6.10" 8x 8x DVD/24x CD The Lenovo USB Portable DVD Burner is a small form factor external portable DVD and CD recordable drive that can be attached to notebooks to a functional USB 2.0 port(s). The drive is powered by one or two available USB 2.0 ports with one USB Y cable, depending on configuration. No power adapter is included or necessary. The included comprehensive software bundle consists of: WinDVD for playback of MPEG-2 files and DVD movies. Creator Business Edition burning software for recording to CD and DVD supported media. My DVD for capturing, editing, and creating your own videos. DVD-Writer Double-layer - DVD-RAM/±R/±RW External Lenovo Lenovo Group Limited USB USB 2.0 - USB www.lenovo.com/us/en/ |
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Cavalry CAEDVDRW8U2 DVD-Writer - External $53.99 0.75" 1.10 lb 2 MB 24x 24x DVD 5.25" 6" 6x 6x DVD/24x CD 8x 8x DVD/24x CD CAEDVDRW8U2 8x DVD±RW Slim Drive USB 2.0 Y-Cable User Guide Easily burn your favorite music or movies to DVDs or CDs wherever you go. With automatic installation, no additional software is required to begin burning. The portable size of the writer allows you to attach it to any computer since the USB 2.0 connection is all that it needs to power the device. With a simple click, you can begin burning to dual layered DVDs. CAEDVDRW8U2 CAEDVDRW8U2 8x DVD±RW Slim Drive Cavalry Cavalry Storage, Inc DVD-Writer Double-layer - DVD±R/±RW External USB USB 2.0 - USB www.cavalrystorage.com |
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Diode Laser and Naocl as Root Canal Disinfectant $111.53 Enterococc faecalis considered to be the mostresistant bacteria of the root canal, in the presentstudy we used two types of root canal disinfectant toshow their effect on this type of bacteria, the firstis the diode laser and the second NaOCl solution withspecial concentrations and times. the study conductedon human decoronated extracted teeth, adjusted with13mm root length, filled with a suspension of E.faecalis, Samples were divided into 14 groups eachgroup consisted of 10 prepared roots, sixty sampleswere irrigated with NaOCl solution at differentconcentrations (0.5, 2.5 and 5.25) at twoselected times (2 minutes and 5 minutes) for eachconcentration.Sixty samples were irradiated at different powers (2W, 2.5W and 3W); each power at thetotal irradiation time 30 and 60 seconds. Whencomparison was made between NaOCl irrigant and diodelaser in a combination among differentconcentrations, powers and times the result showedthat 5.25 NaOCl at both 2 minutes and 5 minutes hadthe highest antimicrobial effect with no significantdifferences from 3W laser / 10 sec (6 cycles) butsignificantly different from 3W / 5 sec (6 cycles). Author: Shehab, Najwan F./ Zakaria, Assistant Prof Nawfal a./ Taha, Prof Dr Mahmoud y. Binding Type: Paperback Number of Pages: 104 Publication Date: 2011/07/29 Language: English Dimensions: 9.02 x 5.98 x 0.25 inches |
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Laser Diode Microsystems $301.11 Laser Diode Microsystems provides the reader with the basic knowledge and understanding required for using semiconductor laser diodes in optical microsystems and microoptical electromechanic systems. This tutorial addresses the fundamentals of semiconductor laser operation and design, coupled with an overview of the types of laser diodes suitable for use in Microsystems, along with their distinguishing characteristics. Emphasis is placed on laser diode characterization and measurement as well as the assembly techniques and optical accessories required for incorporation of semiconductor lasers into complex microsystems. Equipped with typical results and calculation examples, this handon text helps readers to develop a feel for how to choose a laser diode, characterize it and incorporate it into a microsystem. Author: Zappe, Hans P./ Zappe, H. Series Title: Microtechnology and Mems (Hardcover) Binding Type: Hardcover Number of Pages: 355 Publication Date: 2003/10/10 Language: English Dimensions: 9.21 x 6.14 x 0.81 inches |
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Sony DRX-S77U DVD-Writer - Gold - External $57.99 0.75" 10.56 oz 2 MB 24x 5.37" 5.77" 8x 8x DVD/24x CD DRX-S77U 8x DVD±RW Drive Product Information USB Cable AC Adaptor AC Power Cord Quick Start Guide User Manual Warranty Card Nero 9 DRX-S77U DRX-S77U 8x DVD±RW Drive DRX-S77U/N DVD-Writer Double-layer - DVD-RAM/±R/±RW External Gold Sony Sony Corporation USB USB 2.0 - USB www.sony.com |
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ASUS DRW-22B2S DVD-Writer - Black - Internal $22.99 1.43 lb 1.61" 16x 16x DVD/48x CD 2 MB 22x 22x DVD/48x CD 32x 48x 5.25" 1/2H Internal 5.75" 6.69" 8x 8x DVD/32x CD 90-D40EHS-UBN10- The DRW-22B2S is a power saving X Multi DVD±R/RW drive capable of reading and writing data on DVD±R/±RW, DVD-RAM formats. This drive provides you with flexibility and efficiency in terms of multimedia data storage and sharing. ASUS ASUS Computer International Black DRW-22B2S DRW-22B2S 22x DVD±RW Drive DVD-Writer Double-layer - DVD-RAM/±R/±RW EIDE/ATAPI IDC EIDE/ATAPI Internal usa.asus.com |
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Kanguru U2-DVDRW-24X External DVD-Writer $104.15 The Kanguru USB2.0 24x DVDRW drive provides high speed DVD and CD burning for PC and Mac users. Dual Layer technology allows you to burn nearly twice as much data (up to 8.5GB) to a single disc, allowing you to create high quality DVDs. These high-speed USB2.0 DVDRWs are a great way to add the ability to burn DVDs and CDs to your computer. The Kanguru DVDRW utilizes USB2.0 connectivity, providing plug and play ability and speeds 40 times faster than USB1.1. This allows you to take advantage of some of the fastest burn speeds ever! Discs are created using BURN Proof technology to ensure fast, accurate burns. Simply plug the drive into an available USB port for instant access to a 24x DVD/RW drive. As an added benefit, the Kanguru DVDRW Drive is bundled with DVD burning and playback software for the PC. Manufacturer: Kanguru Solutions Manufacturer Part Number: U2-DVDRW-24X Manufacturer Website Address: www.kanguru.com Brand Name: Kanguru Product Model: U2-DVDRW-24X Product Name: U2-DVDRW-24X 24x DVD?RW Drive Product Type: DVD-Writer Technical Information: Optical Media Supported: DVD-RAM/?R/?RW Technical Information: Dual-Layer Media Supported: Yes Interfaces/Ports: Host Interface: USB 2.0 Physical Characteristics: Form Factor: External Package Contents: U2-DVDRW-24X 24x DVD?RW Drive USB 2.0 Cable Power Adapter Quick Start Guide Registration Form |
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I/OMagic IDVD24DLSE DVD-Writer - External $82.99 1 Year Limited 24x 24x DVD/48x CD 32x 48x 8x 8x DVD/32x CD IDVD24DLSE 24x DVD±RW Drive with LightScribe Quick Install Guide CD/DVD Mastering Software Power Cable USB Cable I/OMagic's blazing fast 24x DVD±RW/±R simplifies DVD ReWritable technology with one unit that does it all; giving you the ability to read and write to popular formats including, DVD+R, DVD+R(DL), DVD-R, DVD-RW, DVD+RW, CD-R, and CD-RW. Dual Format technology gives you the freedom to choose the media format (-R, -RW, +R, +RW) that is most compatible with your computer or home DVD player, while the Double Layer technology allows you to store twice as much data on DVD DL media; that's up to 8.5GB of storage! With an increased write speed of 24x for +R and -R, and 8x for +RW, you can create your own DVD movies and music CDs in minutes! DVD-Writer Double-layer - DVD±R/±RW External I/OMagic I/OMagic Corporation IDVD24DLSE IDVD24DLSE 24x DVD±RW Drive with LightScribe USB USB 2.0 - USB www.iomagic.com |
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EXTERNAL USB DVD WRITER DRIVE $57.99 EXTERNAL USB DVD WRITER DRIVE |
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Primera DVD-Writer - USB 63500 $2667.9 Primera DVD-Writer - USB 63500 |
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Primera DVD-Writer - USB 63502 $2932.13 Primera DVD-Writer - USB 63502 |
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EZdupe DVD-ROM, DVD-Writer LSLGNB3 $411.93 EZdupe DVD-ROM, DVD-Writer LSLGNB3 |
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EZdupe DVD-ROM, DVD-Writer LSLGNB5 $582.05 EZdupe DVD-ROM, DVD-Writer LSLGNB5 |
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LightEmitting Diode $68.51 Light emitting diode. Oleg Losev, List of LED failure modes, Organic light emitting diode, Miniature light emitting diode, Solid state lighting, LED lamp, LED power sources, Electrical polarity of LEDs, LED circuit, LED as light sensor Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 74 Publication Date: 2009/10/08 Language: English Dimensions: 5.98 x 9.01 x 0.17 inches |
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ASUS 90-XB0U00DR00010- DVD-Writer $53.99 11.20 oz 90-XB0U00DR00010- 90-XB0U00DR00010- Slim External DVD-RW Writer ASUS ASUS Computer International DVD-R/RW DVD-Writer usa.asus.com |
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