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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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JVC WMA/MP3 (CD-R/RW) 400W Power CD Compact Component System MX-KC68 $134.96 JVC WMA/MP3 (CD-R/RW) 400W Power CD Compact Component System MX-KC68 |
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Buslink CD-RW $82.99 10.40" 15.40" 24x 4.30" 5.10 lb 52x 52X Zone-CLV Writing, 24X Re-write & 52X Max CAV Reading Average access time is 80 ms (typical) Access all format CD-ROM , CD-R , CD-RW title & disc Conforms to Orange Book Part 2, 3 & Volume 2 : High Speed Vibration Absorber System (VAS)R to reduce vibration & noise Buffer Under Run Free Standard ATAPI/E-IDE interface supporting DMA, MMC2 commands Plug & Play ready ; Emergency manual eject Supporting DOS, Win 3.1/95/98/2000/NT/ME/XP Media condition check & Data verifying function NERO AUTHORING SOFTWARE Pentium II processor at 350 MHZ or higher Or Celeron 350 processor or higher Or K6-2 processor at 380 MHz or higher At least 32 MB RAM Windows 98, 98se, ME, & 2000. Quick Installation Guide(Manual/driver) USB A to B Cable, Power Adapter BUSlink CD-ReWritable Drive allows you to write and rewrite data files. To record your favorite music CD, to copy other CDs, and to backup your important files with unsurpassed reliability. Do it all with BUSlink CD-ReWritable Drive. Buslink Buslink Media CD-RW CD-Writer External UII-RW52E USB 2.0 www.buslink.com |
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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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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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LG 8x External USB 20 Double-Layer DVD RW/CD-RW Drive $79.99 Get creative with this double-layer DVD RW/CD-RW drive that allows you to make customized CDs and DVDs. The drive is USB-powered for use with most computers, without the need for a separate power source. |
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Apricorn 8x DVD RW/CD-RW Drive with LightScribe $63.99 0.75" 1 Year 12 oz 2 MB 24x 3.52 MBps Re-write CD-RW 3.52 MBps Read CD-ROM 3.52 MBps Write CD-R 5.50" 60 MBps External USB 2.0 8x 8x DVD/24x CD 8x DVD±RW/CD-RW Drive with LightScribe 8x DVD±RW/CD-RW Dirve with Light Scribe Optical drive enclosure USB cable AC adapter software Media Ahead Nero OEM Suite Cyberlink Power DVD 5 LightScribe System Software CPU: Intel Pentium II 350MHz RAM: 64MB /li> Disc Space: 40 MB Interface: USB 2.0 (recommended for playing DVD's) OS Support: Windows 2000 Windows XP Apple OS 10.4 or later At just 12 ounces, EZ Writer allows mobile users to create, store, play music and digital video and burn labels directly onto CD's and DVD's. With its Hi-Speed USB 2.0 interface (backwards compatible with USB 1.1), EZ Writer LightScribe provides the perfect combination of performance and software to effortlessly burn discs and play DVDs and burn labels directly onto CD's and DVD's. Its sleek design is the ultimate portable solution for the mobile user. Plug-n-play Apricorn Apricorn, Inc DVD-Writer Double-layer - DVD±R/±RW EZ Writer EZ-WTR-DVD-DL4-LS PC Portable USB USB 2.0 - USB www.apricorn.com |
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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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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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External USB Slim 8x DVD RW Portable Burner CD Writer $72.2 Super slim, lightweight and external design for easy travelingNo Power require for USB 2.0 (Some Notebook still require USBPower or PS/2 Power due to the notebook design of the manufacturer)USB 2.0 InterfaceSlim design for dimension only 5.5 in X 5.2 inch X 0.6 inchPlug and PlayLow power consumptionBootable for nearly all the notebook computer (Required BIOS support for boot up using USB CDROM)Maximum read speed in 24X (CD-ROM) or 8X (DVD)Driver-less for windows XP (Windows 98 se require driver)Format Supported: DVD+R, DVD+RW, DVD-R, DVD-RW, DVD-ROM,DVD-video, CD-R/RW, CD-ROM/XA, CD-ROM, Audio CD, CD-I/VCD, Photo CD,CD-EXTRA, CD-TEXTMaximum write speed: 8x DVD+R, 4x DVD+RW, 8x DVD-RW, 2.4x DVD+R9, 24x CD-R, 16x CD-RW2MB Cache bufferSupport Windows 98SE / ME / 2000 / XPPacking include100% Brand New8x DVD/RW External DriveConnection Cable, (Power Supply or Power Cable)Please use the XP build in function for burning DVD or installthird party software such as NERO for burning (Package not include NERO) |
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HP 16x DVD RW Drive $108.99 1 x 7-pin Serial ATA/150 - Serial ATA 16.26" 16x 16x DVD/40x CD 16x DVD±RW Drive 2 MB 32x 40x 447328-B21 5.25" 1/2H Internal 5.75" 7.87" 8x 8x DVD/32x CD 16x DVD±RW Drive Installation guide Warranty card Software Media SATA data and power cables Drive supports major Operating Systems for reading media Software support is required for writing to media Compatibility: ProLiant ML (expansion-optimized): HP ProLiant ML110 G5 HP ProLiant ML115 G2 HP ProLiant ML150 G5 HP ProLiant ML310 G5 DVD-Writer Double-layer - DVD-RAM/±R/±RW HP Hewlett-Packard Internal Roxio software Serial ATA The HP DVD RW is the first generation of SATA optical drives for HP ProLiant servers. The DVD RW drive will be capable of reading DVD 4.7 GB through 8.5 GB media. It will also be able to read standard stamped, CD-R, and CD-RW media. The drive supports writing to CD-R, CD-RW, DVD +R/RW, and DVD -R/RW media. www.hp.com |
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IBM Server System x3550 Xeon Dual-Core 2.33GHz Ram 4GB DVD-ROM/CD-RW 2 X Power Supply Rack 7978AC1B62 $258.98 IBM Server System x3550 Xeon Dual-Core 2.33GHz Ram 4GB DVD-ROM/CD-RW 2 X Power Supply Rack 7978AC1B62 |
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Lenovo Ideapad G550 CD-RW / DVD-RW Multi Drive AD7580S $39.92 Lenovo Ideapad G550 CD-RW / DVD-RW Multi Drive AD7580S |
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Lenovo CD-RW/DVD-RW Rambo V Drive 39T2779 $42.2 Lenovo CD-RW/DVD-RW Rambo V Drive 39T2779 |
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24/8/8/4/24X Lenovo DVD-RW/CD-RW Combo IV Drive 39T2676 $57.02 24/8/8/4/24X Lenovo DVD-RW/CD-RW Combo IV Drive 39T2676 |
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Lenovo Ideapad Y430 CD-RW / DVD-RW Multi Drive 25007719 $46.76 Lenovo Ideapad Y430 CD-RW / DVD-RW Multi Drive 25007719 |
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16x48x HP DVD RW/CD RW IDE 5.25" 51882574 $119.25 16x48x HP DVD RW/CD RW IDE 5.25" 51882574 |
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Dell CD-RW/DVD-RW Laptop Drive L632 $28.52 Dell CD-RW/DVD-RW Laptop Drive L632 |
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8x Dell CD-RW DVD+/-RW Combo Drive Silver TW039 $33.08 8x Dell CD-RW DVD+/-RW Combo Drive Silver TW039 |
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Dell DVD-RW IDE CD-R RW Combo FH630 $57.02 Dell DVD-RW IDE CD-R RW Combo FH630 |
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Homemade Laser Show machine built from a DVD burner diode
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