Keysight Technologies Expands Spectral Test Portfolio with New Tunable Laser Sources


New Models Offer Price-Performance Choices for High-Throughput Testing of Optical Components

SANTA ROSA, Calif., Sept. 22, 2015

Keysight Technologies, Inc. (NYSE: KEYS) today introduced the 81607A, 81608A and 81609A tunable laser sources, a range of modules for the Keysight 8164B lightwave measurement system. The new modules extend  the product family that debuted in March 2015 with the Keysight 81606A tunable laser source, an instrument with unmatched sub-picometer tuning repeatability and best-in-class wavelength accuracy that is maintained even in full-speed, two-way sweeps.

The new value and basic line models share the 81606A's new design with low spontaneous emission and narrow line width, its industry-leading power repeatability and long-term stability. The new modules offer engineers additional price-performance options based on output power, tuning speed, wavelength accuracy and repeatability. Whether engineers need to verify the design of demanding optical components or adjust more wavelength-selective switches per hour, or they simply need a stable, tunable optical source, the 8160xx family of tunable lasers offers a suitable model.

The new 81607A value line tunable laser source complements the top line 81606A model at a more moderate output power. With a typical wavelength repeatability of ±1 pm, even during 200-nm/s two-way sweeps, it is ideal for high-throughput test and automated adjustment of passive optical components.

The new 81608A, another member of the value line tunable laser sources, offers more than +12-dBm peak output power, at least 75 dB/nm above its spontaneous emission level. The 81608A features ±1.5-pm typical wavelength repeatability at two-way sweeps up to 200 nm/s. The laser's balance of features, performance and price makes it suitable for both coherent transmission experiments and cost-efficient manufacturing-floor component testing.

The new 81609A basic line module can step within 300 milliseconds to discrete wavelengths with 0.1-pm resolution and ±3-pm typical wavelength repeatability, making them ideal for cost-effective testing of broadband optical devices. Like the other modules in the family, the 81609A delivers more than +12-dBm peak output power with low spontaneous emission levels. At ±0.01-dB power stability over an hour, it can also serve as a static local oscillator with a wide tuning range for receiver testing or transmission experiments.

All members of the new tunable laser family are compatible with the current 81600B laser commands and the N7700A Photonic Application Suite, a collection of advanced software tools for making fast and accurate optical measurements, controlling fiber optic instruments and analyzing measurement results. This commonality makes it easy for engineers to transition smoothly to the new modules or expand their collections to include the new modules.

"For production managers, higher throughput and lower cost of ownership of their test equipment is key to optimize their organization's cost efficiency," said Juergen Beck, vice president and general manager of Keysight's Digital and Photonic Test Division. "We designed the new tunable laser family to ensure the highest long-term stability and to enable cost-efficient servicing. A range of performance classes allows our customers to scale their investment without compromising manufacturing efficiency."

U.S. Pricing and Availability

The Keysight 81607A and 81608A value line tunable laser source modules are available now at a list price starting at $49,358. The Keysight 81609A basic line tunable laser source module is available now at a list price starting at $35,409. Two options provide a choice of tuning ranges: Option 216 (available for 81608A and 81609A) offers tuning from 1450 nm to 1650 nm, and Option 116 (available for all three products) covers the tuning range from 1490 nm to 1640 nm. All tunable laser modules are compatible with the Keysight 8164B lightwave measurement system mainframe.

More information about the Keysight 8160xx family of tunable laser sources is available at Product images are available at

A video of the family's top line 81606A model is available at Additional videos about Keysight's photonic solutions are available on the Keysight Photonic Test YouTube channel at

Keysight will demonstrate the latest optical test solutions, including the 8160xx family of tunable laser sources, at ECOC 2015, Booth 402, Feria Valencia, Spain, Sept. 28-30.

About Keysight Technologies

Keysight Technologies (NYSE:KEYS) is a global electronic measurement technology and market leader helping to transform its customers' measurement experience through innovations in wireless, modular, and software solutions. Keysight's electronic measurement instruments, systems, software and services are used in the design, development, manufacture, installation, deployment and operation of electronic equipment. The business had revenues of $2.9 billion in fiscal year 2014. Information about Keysight is available at

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