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5 February 2019

POET’s DenseLight launches two 1650nm-range DFB lasers

POET Technologies Inc of Toronto, Canada and San Jose, CA, USA — a designer and manufacturer of optoelectronic devices, including light sources, passive waveguides and photonic integrated circuits (PIC) for the sensing and datacom markets — and its Singapore-based subsidiary DenseLight Semiconductor have launched two new high-performance lasers (available for immediate delivery).

DenseLight’s newest line of 1653 DFB (distributed feed-back) lasers are targeted at the methane gas sensing markets. Providing human-eye-safe detection of methane using laser light provides a safer, more effective laser solution than competing detection methods, the firm says. Methane is an odourless, explosive gas and exposure to it can lead to unconsciousness or death through suffocation. Detecting its presence is critical in industrial, commercial and residential settings.

The new mid-infrared indium phosphide (InP)-based lasers are available in a narrow spectrum range of +/-2nm (centred at 1653nm) and both as a chip and in a cooled butterfly package, offering a competitive price range for different detection applications. Key features of 1653 DFB lasers also include: a minimum output power of 6mW; cooled operation at 25°C; and a minimum side-mode suppression ratio (SMSR) of 35dB.

DenseLight is also shipping quantities of its new high-power 1650nm Fabry-Perot (FP) lasers for test & measurement applications, targeted at the OTDR (optical time-domain reflectometer) market where equipment is used to detect faults and understand the losses along a given length of fiber-optic cable in networking and datacoms systems. DenseLight’s 1650nm FP lasers are used in test equipment for both in-cable manufacturing and routine maintenance of fiber-optic cables. They deliver what is reckoned to be a higher-than-market-average pulsed power performance demanded by manufacturers to enhance the dynamic range of their OTDR equipment.

For flexibility in design and performance, the lasers are available in a transistor outline (TO) package with an aspherical lens or in a TO pigtail form. Key features of the 1650 FP lasers include: 50mW pulsed (TO-pigtail); 110mW pulsed (TO-A); uncooled operation; operating temperature of 0-60°C; and pulsed current up to 1A.

DenseLight is exhibiting its suite of standard components for datacoms and sensing applications in booth 4085 at the SPIE Photonics West 2019 event in San Francisco (5–7 February).

Tags:  POET

Visit:  http://spie.org/photonics-west.xml

Visit:  www.denselight.com

Visit:  www.poet-technologies.com

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