Global market for optical circulators shows 'significant increase'

Nov. 1, 2003
The worldwide consumption value or use of optical circulators in telecom applications is showing signs of recovery in 2003, contends a new market study from ElectroniCast (San Mateo, CA).

"In 2000, the value of optical circulators actually consumed in telecommunications networks was $71.4 million," reports ElectroniCast president Stephen Montgomery. "After seeing the market slip in 2001 and 2002, we are now seeing a significant increase in both volume (number of units) and value in 2003; three-port units are leading with a relative market share of more than 80%, but by 2007, the three-port share will slip to 70%."

Optical circulators are used in several applications, including bidirectional transport systems for multiplexing the forward and reverse paths of the optical signal. They also are appropriate in sensing and fiber-optic instrumentation such as in optical time domain reflectometers to counter the optical signal loss associated with a double pass of a 3-dB fiber-optic coupler/splitter. In addition, they can be used with optical-fiber gratings to build wavelength-division multiplexers and optical add/drop multiplexers for WDM transport systems and other applications.

For more information on the report, "Optical Circulator Global Market Forecast Service," visit