Tip of the Week – 20 Jan 2014

Tip of the Week: Multimode Fiber Optical Mode OM Levels

The two multimode fiber core diameters are identified by their core/cladding diameters, such as 50/125 and 62.5/125 fiber. Since they both have the same outer cladding diameter of 125 um they can use the same fiber connector type, which is typically ST or SC (SC is much better quality). These core sizes are further categorized into four optical mode (OM) fiber cable types by Standard ISO/IEC 11801, as follows:

multimode_table

Actual maximum transmission reach for each OM level depends on the transceiver type and data rate. Feel free to download our transceiver pluggables Standards chart for this info and much more, http://telecomengineering.com/products/pluggable-transceivers/

Pertinent Products/Services:

* Industry First DWDM or CWDM M-ROADM *

Manually reconfigurable add/drop multiplexer, add/drop 1 to 44 channels in any DWDM or CWDM (1 to 18 channels) network. Very economical, great for locations where full ROADM cost cannot be justified. * Patent Pending

Applications:
– metro fiber networks
– long haul fiber networks
– any other network that requires DWDM or CWDM channel add/drops

Features include:
– completely reconfigurable, add/drop or pass through any CWDM or DWDM channels
– 40G and 100G compatible
– completely passive, no power and no cooling required
– completely reconfigurable, add/drop or pass through any channels
– 2 degree unit can be expanded by adding additional units
– transparent to all protocols
– manual VOAs for individual channel power balancing
– very simple to install, operate and maintain
– high reliability
– economical
– Lifetime Warranty

DWDM and CWDM OADM available add/drop up to 16 channels
Applications:

– metro fiber networks
– long haul fiber networks
– any other network that requires DWDM or CWDM channel add/drops

Features include:
– completely passive, no power and no cooling required
– 2 degree unit
– transparent to all protocols
– very simple to install, operate and maintain
– high reliability
– economical
– Lifetime Warranty

More details here: http://www.telecomengineering.com/products.htm

To learn more about this topic and other fiber optic network topics, refer to my following books (publisher McGraw-Hill):

“Planning Fiber Optic Networks”, ISBN 0-07-1499199 available from Amazon.com.
Table of contents can be seen here: http://www.TelecomEngineering.com/products/resources/planningfibernetworks.htm