Yenista XTM-50 filters manually to 6.25 GHz

July 19, 2010
JULY 19, 2010 -- Yenista Optics has released the XTM-50, a manually tunable filter. The optical filter has adjustable bandwidth down to 6.25 GHz (50 pm), which Yenista asserts is a record for diffraction grating based devices.

JULY 19, 2010 -- Yenista Optics has released the XTM-50, a manually tunable filter. The optical filter has adjustable bandwidth down to 6.25 GHz (50 pm), which Yenista asserts is a record for diffraction grating based devices.

The development of next-generation 100G systems has created a need for filters with extremely narrow tunability to investigate sub-bands of the 100G multiplexed signal. The XTM-50 has a wavelength tuning range from 1450 to 1650 nm and a bandwidth adjustment range from 50 pm to 800 pm. It is designed to enable engineers to extract channels with low insertion loss and no distortion of signal thanks to 0.2 dB flatness and 550 dB/nm steep edges.

“New transmission technologies related to 100G, like OFDM, are rapidly emerging in labs and create the need for new analysis tools. If you are looking at multiplexing four different optical streams in a 50-GHz filter, you cannot use anymore your old Gaussian or semi-flat-top filter; you need something really narrow with very steep edges,” said Nicephore Nicolas, Yenista's sales and marketing manager. “With this new manually tunable filter, Yenista provides an innovative solution for studying new modulation formats, high bit rate transmission, and cascaded ROADMs. Moreover, this manual version offers a very attractive price-performance ratio.”

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