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29 July 2008


Eblana extends ultra-narrow-linewidth laser range to 400kHz 1550nm butterfly module

Eblana Photonics Ltd of Dublin, Ireland says that it has completed development of its EP1550-NLW-B Narrow Linewidth laser series and has begun commercial shipments. The latest series complements the firm’s existing product portfolio for applications such as GPON, GEPON, CATV and SONET/SDH.

EP1550-NLW-B series lasers have guaranteed emission line-widths specified at 400kHz and below, with highly linear light current characteristics and high side-mode suppression ratio (SMSR). The products are already being used in high-bandwidth coherent communications applications where, for example, high-spectral-efficiency, phase-encoded signals are used to overcome transmission bottlenecks. Devices are being used in various sensor, medical and imaging applications.

The laser is supplied in an industry-standard hermetically sealed 14-pin butterfly integrated with optical isolator, thermo-electric cooler (TEC), thermistor and power
monitor photodiode. Each device is shipped with individual test data of the measured linewidth.

Eblana says that its proprietary laser technology is the key to achieving the product’s unique features, which include mode-hop-free wavelength tuning by varying the bias current and/or temperature, and what the firm claims to be excellent wavelength stability.

“A key impact of our technology on the product’s performance is that the laser emits in an ultra-narrow line even at low emitted powers, unlike DFB [distributed feedback] lasers which have to be driven at extreme operating points to achieve even MHz line-widths,” says founder James O’Gorman.

“This product family extends our applications reach,” says Dr Bo Cai, VP of sales & business development, adding that “feedback from first users of the EP1550-NLW-B has been extremely positive”.

See related item:

Eblana ships ultra-narrow linewidth, low-noise 1310 and 1550nm lasers

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