Product category:
Optoelectronic Sensors, Switches and Receivers
News Release from: Bookham | Subject: 1- and 8-channel EVOAs
Edited by the Electronicstalk Editorial
Team on 12 July 2001
Solid-state attenuators aid network
reliability
Bookham Technology has launched two new products designed for use in the metro and long-haul dense wavelength division multiplexing (DWDM) markets.
Bookham Technology has launched two new products designed for use in the metro and long-haul dense wavelength division multiplexing (DWDM) markets Using highly-efficient free carrier injection technology, the 1- and 8-channel electronic variable optical attenuators (EVOAs) combine a market leading response speed of over 2MHz with a very high dynamic range of up to 45dB of attenuation
This article was originally published on Electronicstalk on 28 Feb 2008 at 8.00am (UK)
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The significant speed advantage of the 1-channel EVOA opens new application areas, such as switching and transient suppression, not available to low-speed 1-channel VOAs.
Transient suppression can cause significant problems for vendors of metro OADM systems.
The high response speed of the 1-channel EVOA enables regulation of the power spikes generated as channels are added and dropped from the system, eliminating the need for complicated multi-pump control.
The combination of high attenuation and fast response speed allows the products to be used as "blocking" components in protection-switching applications, for increased network reliability.
Their fast response also enables analogue signal modulation over a digital data stream, without causing distortion within the erbium-doped fibre amplifiers (EDFA) gain profile.
The two new products extend the BKM 520x6 family that started with the 4-channel EVOA, creating a comprehensive EVOA product line that enhances the modularity available to DWDM vendors.
All products utilise extremely small form factor packages and offer low power consumption of 150mW per channel.
The EVOA devices are manufactured using ASOC technology, which uses high-volume production methods to build reliable integrated optical devices.
ASOC EVOAs use solid-state attenuation and as a result are more reliable than competing components that use moving parts.
"Bookham Technology is continuing to strengthen its DWDM product line by offering high performance solutions to our customers based on the robust and highly scalable ASOC technology", said Patrick Grant, Product Line Manager for EVOA, Bookham Technology.
"We are already sampling to qualified customers and the response has been excellent".
Volume production quantities are available now.
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