Category Archives: Fiber Optic Transport

User’s Guide to Fiber Optic Video Transmission – Introduction to Fiber Optics – Part 1

FiberOptic Medium

Fiber optics is a method of carrying information using optical fibers. An optical fiber is a thin strand of glass or plastic that serves as the transmission medium over which information is sent. It thus fills the same basic function as a copper cable carrying a telephone conversation, computer data, or video. Unlike the copper cable, however, the optical fiber carries light instead of electrons. In so doing, it offers many distinct advantages that make it the transmission medium of choice for applications ranging from telephone calls, television, and machine control.

The basic fiber-optic system is a link connecting two electronic circuits. Figure 1 shows a simple fiber-optic link.

There are three basic parts to a fiber-optic system:

•  Transmitter: The transmitter unit converts an electrical signal to an optical signal. The light source is typically a light-emitting diode, LED, or a laser diode. The light source performs the actual conversion from an electrical signal to an optical signal. The driving circuit for the light source changes the electrical signal into the driving current.

•  Fiber-optic cable: The fiber-optic cable is the trans- mission medium for carrying the light. The cable includes the optical fibers in their protective jacket.

•  Receiver: The receiver accepts the light or photons and converts them back into an electrical signal. In most cases, the resulting electrical signal is identical to the original signal fed into the transmitter. There are two basic sections of a receiver. First is the detector that converts the optical signal back into an electrical signal. The second section is the output circuit, which reshapes and rebuilds the original signal before passing it to the output.

Depending on the application, the transmitter and receiver circuitry can be very simple or quite complex. Other components that make up a fiber-optic trans- mission system, such as couplers, multiplexers, optical amplifiers, and optical switches, provide the means for building more complex links and communications networks. The transmitter, fiber, and receiver, how- ever, are the basic elements in every fiber-optic system.

Beyond the simple link, the fiber-optic medium is the fundamental building block for optical communications. Most electrical signals can be transported optically. Many optical components have been invented to permit signals to be processed optically without electrical conversion. Indeed, one goal of optical communications is to be able to operate entirely in the optical domain from system end to end.

FIGURE 1    Basic building blocks of a fiber-optic system.

Click for Part 2 on Snell’s Law

Posted in Fiber Optic Medium, Fiber Optic Transport, Introduction to Fiber Optics, Users Guide to Fiber Optic Video Transmission, Users Guides | Tagged | 1 Comment

VidOptic series CATV Cable TV and L-BAND RF Fiber Optic Links from VidOvation

CATV Cable TV and L-BAND RF Fiber Optic Links

VidOvation provides VidOptic series of Broadband RF signal distribution and transport over fiber optic cabling and infrastructure. The VidOptic family offers CATV and Cable TV transport via 1550nm and 1310nm wavelength fiber transmission products using Ortel-Emcore DFB laser with pre-distortion circuit, laser power from 4mW to 31mW. Fiber to the Home and Fiber to the Building FTTH/FTTB offer Triple-play capability. VidOptic systems are available for L-Band Satellite RF signal distribution.

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VidOvation Launches New Line of Fiber Optic Video Extenders

VidOvation  offer a wide range of fiber extenders to deliver high-quality digitized VGA, DVI,

HDMI, USB and control signals over fiber optic cable.  Fiber optic cables are superior to conventional cables and are capable of transmitting over very long distances digitally with no signal loss. They are immune to electromagnetic interference and in situations where there is considerable interference, fiber optic cabling may be the only solution. They are much more secure than traditional cabling because they cannot be easily tapped. For this reason, military and law enforcement agencies use fiber optic cables for the transmission of sensitive data. They are also relatively inexpensive and small enough to be routed through small spaces. Visit our web site to learn more at www.vidovation.com

 

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VidOvation Showcases New Product Additions for its Broadcast, Corporate, and Government AV Product Lines at NAB 2013

Moving Video ForwardPress Contact:
Curtis Chan
Cognitive Impact
714.447.4993
curtis@cognitiveimpact.com
or pr@vidovation.com

For Immediate Release


VidOvation Showcases New Product Additions for its Broadcast, Corporate, and Government AV Product Lines at NAB 2013

Innovative IPTV, Webcasting, 60GHz wireless HD-SDI, and Fiber Optic Transport systems delivers broadcast quality audio/video at 1/3 the cost


Las Vegas, Nevada, April 3, 2013 – NAB Booth #:
N1307 – VidOvation, a leading technology provider of video and data communication systems to the broadcast television, sports, corporate audio-visual, and government markets, announced today that they will debut at NAB, as part of their expanded business strategy, a new line of product families for IPTV, Webcasting and Fiber Optic Transport designed to increase system performance and flexibility while dramatically reducing overall acquisition, implementation and support costs. The new product families include:

1)    The VidLink II-5 60GHz wireless video link system can be used in ad hoc or permanent installations and features zero frame delay, zero interference, uncompressed 1.5G HD-SDI video, 270Mb/s SD and DVB ASI, globally allocated unlicensed 60 GHz spectrum, no channel coding, ruggedized and water resistant enclosure, water resistant connections, and range for HD of 500m and SD greater than 1000m. Continue reading

Posted in Applications - Industries, AV Technology, Broadcast, Broadcast Engineering, Editorial Coverage, Fiber Optic Transport, Government and Military, GSN - GOVERNMENT SECURITY NEWS, NAB Show, News, NHL - National Hockey League, Professional AV - Pro AV, Satnews Daily, Sports, Sports Video Group - SVG, Trade Shows, TV Technology | Tagged , , , , , , , , | Leave a comment