» Setting a new standard for stability, control and repeatability

QUEBEC CITY, CANADA, March 13, 2008 - EXFO Electro-Optical Engineering Inc.'s Life Sciences & Industrial Division (NASDAQ: EXFO, TSX: EXF) announced today the expansion of its X-Cite® Fluorescence Microscopy Illumination System product line with the launch of the new X-Cite® exacte.

The X-Cite® exacte is designed for demanding imaging applications such as live cell, high speed and quantitative imaging, all of which require illumination stability and precise repeatability. Controlling illumination variability allows researchers to significantly improve productivity by reducing or even eliminating time-consuming image processing steps to normalize data.

The X-Cite® exacte provides ultra-stable illumination by employing a DC-powered lamp coupled with EXFO's patented Closed-Loop Feedback technology. In addition, light output can be calibrated in absolute power units using the external X-Cite® Radiometer. This allows repeatable experiments whether they are performed over several weeks or around the world in different laboratories.

With the X-Cite® exacte's high-speed internal shutter, intensity adjustment in increments as small as 1%, computer programmability and a graphical user interface that records real-time stability data, EXFO once again sets a new standard for fluorescence illuminators.

"The original X-Cite® was a huge success as it was the first illuminator of its kind with innovative features such as the convenience of pre-aligned, long-life lamps and superior illumination uniformity," said Allan Firhøj, Vice-President and General Manager of EXFO's Life Sciences & Industrial Division. "The X-Cite® exacte is another major industry-first, giving researchers an unprecedented level of stability and control of intensity. By making it easier to design and perform repeatable experiments, researchers can obtain accurate results more efficiently, and arrive at conclusions faster."

"Our work relies on accurate quantitative measurements of fluorescence intensities in cells over the duration of an experiment which can be a few hours or multiple weeks," said Damir Sudar, staff scientist from the Lawrence Berkeley Laboratory in Berkeley, CA. "The X-Cite® exacte provides both short-term stability with the Closed-Loop Feedback, and long-term stability with the calibrated light output feature. The X-Cite® exacte has greatly enhanced our capability to do quantitative fluorescence imaging work."

About EXFO
EXFO is a Tier-1 test and measurement expert in the global telecommunications industry, especially in the portable test market segment. The Life Sciences & Industrial Division offers value-added light-based solutions in high-precision medical device and opto-electronics assembly sectors, and advanced fluorescence microscopy and electrophysiology solutions for the life sciences sector. The Telecom Division, which represents about 85% of the company's business, offers a full suite of test solutions and monitoring systems to network service providers, cable TV operators, telecom system vendors and component manufacturers in approximately 70 countries. For more information about EXFO's Telecom Division, visit www.EXFO.com, and for its Life Sciences & Industrial Division, visit www.EXFO-LSI.com.

QUEBEC CITY, CANADA, February 21, 2008 - EXFO Electro-Optical Engineering Inc. (NASDAQ: EXFO, TSX: EXF) announced today the introduction of the new IQS-8140 Transport Blazer - a SONET/SDH/OTN (optical transport network) test module for high-speed performance validation and monitoring applications at 40/43 Gbit/s. The IQS-8140 Transport Blazer automates next-generation SONET/SDH/OTN and ROADM (reconfigurable optical add/drop multiplexer) testing with a broad range of SCPI (standard commands for programmable instrumentation) and intuitive macro-recorder functionalities to address growing requirements of network equipment vendors in system verification, manufacturing and troubleshooting of network elements to meet industry standards.

The IQS-8140 Transport Blazer test module includes an intuitive, feature-rich user interface to streamline testing of OC-768, STM-256 and OTN links (with ITU-T G.709 forward error correction (FEC)) without compromising on functionality. The IQS-8140 is also compatible with NRZ, ODB, DSPK, and DQPSK optical transmission protocols to address all transport testing needs while ensuring future scalability.

Network equipment manufacturers can extract the maximum value from their investment in the IQS-8140 Transport Blazer by leveraging EXFO's IQS-600 modular and highly scalable PC-based Integrated Qualification System which offers the widest range of optical test capabilities (Polarization Mode Dispersion Analyzer, Optical Spectrum Analyzer, Variable Optical Attenuators, Wavelength Meters, etc.) and transmission test modules (Ethernet with VoIP/IPTV capabilities, SONET/SDH, OTN, Fibre Channel), thus providing a truly unified platform for physical and transmission testing. This future-proof test platform and its wide range of modules are perfectly suited for test automation applications requiring speed, flexibility and scalability.

In addition, the IQS-8140 Transport Blazer module can be matched with the recently introduced IQS-8130NGE Power Blazer to address DSn/PDH, SONET/SDH (155M to 40G), OTN (2.7G to 43G) and Ethernet (10M to 10GigE LAN/WAN) testing requirements in a single platform.

"Leading network equipment manufacturers worldwide are aggressively developing next-generation 40 Gbit/s SONET/SDH and 43 Gbit/s OTN core transmission equipment to support the ever-increasing global demand for IP-based services, " said Etienne Gagnon, EXFO's Vice-President of Product Management and Marketing. "EXFO's IQS-600/IQS-8140 Transport Blazer provides system verification, R&D and manufacturing teams with carrier-grade testing capabilities to easily, efficiently and reliably validate network elements in a controlled, repeatable environment."

For more information about the IQS-8140 Transport Blazer test module, please visit www.EXFO.com.

About EXFO

EXFO is a Tier-1 test and measurement expert in the global telecommunications industry, especially in the portable test market segment. The Telecom Division, which represents about 85% of the company's business, offers a full suite of test solutions and monitoring systems to network service providers, cable TV operators, telecom system vendors and component manufacturers in approximately 70 countries. EXFO is the global market leader for portable optical test solutions with an estimated 25.5% market share and a leading supplier of protocol and access test solutions to enable triple-play deployments and converged IP networking. Its Windows-based modular AXS-200, FTB-200, FTB-400 and IQS-600 test platforms host a wide range of modular test solutions across optical, physical, data and network layers, while maximizing technology reuse across several market segments. The Life Sciences & Industrial Division offers value-added light-based solutions in high-precision medical device and opto-electronics assembly sectors, and advanced fluorescence microscopy and electrophysiology solutions for the life sciences sector. For more information about EXFO's Telecom Division, visit www.EXFO.com, and for its Life Sciences & Industrial Division, visit www.EXFO-lifesciences.com.