Keysight Technologies Introduces Tunable Laser Sources for Testing Data Center Devices, Integrated Components


+17dBm Enables Verification of Silicon Photonics Designs, New O-Band Option Accelerates High-Volume Testing


  • Extra high power tunable laser model extends power budget limits in test setups and speeds fiber or probe alignment by getting first light faster
  • Photonic devices can be tested at relevant signal levels, even with probe coupling or external modulation
  • Improved test throughput for manufacturers of 100GBASE-LR4 receiver optical subassemblies and optical demultiplexers

SANTA ROSA, Calif., March 23, 2016

Keysight Technologies, Inc. (NYSE: KEYS) today introduced the 81602A, an extra high power tunable laser. The 81602A eases tolerance for power budgets in test setups and speeds fiber or probe alignment by getting first light faster. Keysight also introduced new wavelengths for its recently released 8160xA family of tunable laser modules for the 8164B lightwave measurement system.

The new 81602A extra high power tunable laser reaches an optical power level of over +17 dBm (50 mW). The high output power helps compensate for the coupling loss of optical surface probes or the insertion loss of external modulators during the verification of integrated photonic designs. This allows testing photonic devices at relevant signal levels and wavelengths. With a tuning range of 1250 nm to 1370 nm, the laser addresses the latest silicon photonics research.

With the new 8160xA models, manufacturers of LR4 and CWDM receiver optical subassemblies (ROSA) and of optical demultiplexers can improve their test throughput.

81606A and 81608A tunable laser modules with the new option 113 cover the wavelength range from 1240 nm to 1380 nm, and offer a peak output power above +13 dBm with low spontaneous emission. This allows customers to measure spectral response and sensitivity of 100-Gigabit-Ethernet ROSAs well above noise levels, and to verify the isolation of multiplexers/demultiplexers at high measurement dynamic range.

The new option 113 is available for the 81606A, the family's top line model with a spontaneous emission level 80 dB/nm below the signal, outstanding tuning accuracy and sub-picometer repeatability even at 200-nm/s two-way sweeps. Option 113 is also available for the 81608A value line tunable laser which features ±1.5-pm wavelength repeatability at bidirectional sweeps up to 200 nm/s and offers a spontaneous emission level 75 dB/nm below the signal, as well as for the 81609A basic line, step-tunable laser.

All members of the new tunable laser family are compatible with the current 81600B tunable laser source family programming commands and the N7700A photonic application suite, a solution software for making fast and accurate optical measurements, controlling fiber optic instruments and analyzing measurement results. This makes it easy for engineers to transition smoothly to the new modules or expand their collections to include the new models.

"Silicon photonics researchers and designers of integrated optics who need to surface-probe wafers across a wide wavelength range are faced with challenging signal attenuation," said Juergen Beck, vice president and general manager of Keysight's Digital and Photonic Test Division. "The new extra high power O-band tunable laser enables them to characterize and functionally test their designs with real-life signal levels."

"The massive build-out of data centers leaves transceiver manufacturers with no time to grow their lines' capacity for 100GbE assemblies," adds Dr. Joachim Peerlings, senior marketing director of Keysight's Digital and Photonic Test Division. "By expanding our fast swept-wavelength solutions to the O-band, the new options accelerate high-volume testing of receiver subassemblies and their components with proven measurement methods and software."

More information about the Keysight 8160xA family of tunable laser sources is available at Photos of the instruments are available at A video of the family's top line model 81606A is available on YouTube.

These new products will premiere at the Optical Fiber Communication Conference and Exhibition (OFC), Booth 2901, Anaheim, California, March 22 - 24.

U.S. Pricing and Availability

The 81606A top line tunable laser module with the new option 113 is available for ordering now at a list price of $72,964. Shipments will start in May.

Shipments of the 81608A value line tunable laser with option 113 will start in June at a price of $53,650. At the same time, the 81609A basic line tunable laser with option 113 will be available for $37,555.

The 81602A extra high-power tunable laser module will become available for ordering in April at a list price of $81,548. All tunable laser modules are compatible with the 8164B lightwave measurement system mainframe.

About Keysight in Digital Test

Keysight's solutions for digital applications are driven and supported by Keysight experts who are involved in various international standards committees. Keysight experts are active in the Joint Electronic Devices Engineering Council (JEDEC), PCI Special Interest Group (PCI-SIG®), Video Electronics Standards Association (VESA), Serial ATA International Organization (SATA-IO), USB Implementers Forum (USB-IF), Mobile Industry Processor Interface (MIPI®) Alliance, Ethernet standards (IEEE 802.3), Optical Internetworking Forum (OIF) and many others. Keysight is committed to involvement in standards groups and related workshops, plugfests and seminars to ensure the right test solutions are created to meet customers' evolving needs.

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 2015. Information about Keysight is available at

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