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Wavelength Services For Enterprise Applications
Leasing a fiber optic wavelength gives you high bandwidth on a secure private fiber optic network service

By: John Shepler

Once needed only by telecom carriers, wavelength services are now available for enterprise users. These higher bandwidth fiber optic services are needed by hospitals, medical centers, banks, financial institutions, service providers to government, video production and distribution houses, content delivery networks and research facilities. Every day more applications cross that threshold of needing faster pipes to transfer data. Should those faster pipes be wavelength services?

What is a Wavelength?
A wavelength or lambda is light at a particular frequency or color. This characteristic is generally expressed in terms of wavelength in nanometers rather than frequency in terabits per second. Just as frequencies can be multiplexed to create a broadband wireline service, wavelengths can be multiplexed to offer multiplepaths through a single fiber strand.

The multiplexing process at the physical level for fiber optics is called WDM or Wavelength Division Multiplexing. There are two technologies available. CWDM or Coarse Wavelength Division Multiplexing creates anywhere from 2 to 20 independent wavelengths, with 16 being a standard. DWDM or Dense Wavelength Division Multiplexing requires more precise equipment to create from 40 to 128 or more independent wavelengths.

Where Wavelength Services Are Useful
As you can imagine, having dozens of independent wavelengths per fiber optic core and perhaps 100 cores in a cable, the amount of available bandwidth is truly staggering. So much so, that carriers are leasing out entire wavelengths to companies and organizations that need high bandwidth conduits. Wavelength services are similar to point to point T1 lines in that you have exclusive use of the wavelength. While the wavelengths in any particular core may be leased by dozens of different users, any multiplexing on the particular wavelength you are leasing is up to you. It's a private line service, with the line being a particular wavelength of light.

What bandwidths are available on these wavelength services?Commonly available speeds are 2.5 Gbps and 10 Gbps. Other increments of 1 Gbps and 5 Gbps are also increasingly available. Need more than 10 Gbps? It's possible to get as much as 40 Gbps in some areas. Can 100 Gbps be far behind?

Another advantage of wavelength services is that they are not locked into a particular protocol. You can use your wavelengths to transport Fast Ethernet (100 Mbps), Gigabit Ethernet, SONET OC-3, OC-12, OC-48, Fibre Channel, ESCON and Frame Relay.

How Do You Get Wavelength Services?
Who's offering wavelength services suitable for large enterprise and other organizational use? Major competitive carriers such as Level 3, XO Communications and AboveNet have these and other fiber optic bandwidth services available right now.

How do you find them? The easy way is to use a telecom brokerage service that represents a dozen or more carriers, so you can get the best price for the network services that meet your needs. We make that quick and easy for you through our affiliation with Telarus, Inc., the premier telecom broker with expertise for high bandwidth fiber optic network services.

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