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Optical Laser Source Products

Tunable Laser Source Module

Signal sources for fiber optic system testing for data centers and other high-bandwidth, long distance applications.

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Optical Signal Sources for High-Speed Photonics

Keysight has a wide range of tunable laser sources to fit your needs for various applications. In addition to the proven 8160xx tunable laser source family, Keysight has introduced the new N77xxC generation of instruments.

Shorter time to testing and faster swept-wavelength tests help reduce test cost per device, improve test margins and lower the cost of ownership. Conduct two-way sweeps up to 200 nm/s speed with sub-picometer repeatability. Utilize the best wavelength accuracy with real-time tracking, long-term stability and self-adjustment capability. Benefit with the support of the latest Photonic Application Suite software and compatibility with the 8160xx laser family.

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Find the Tunable Laser Model that's Right for You

N7776C

The new Keysight N7776C top line tunable laser source is designed to reach accuracy and sub-picometer repeatability in static and swept operation for outstanding test efficiency.

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The new Keysight N7776C top line tunable laser source is designed to reach accuracy and sub-picometer repeatability in static and swept operation.

N7778C

The new N7778C’s balance of features, performance and price makes it suitable for cost-effective, high-throughput manufacturing-floor component testing as well as for coherent transmission experiments.

Starting from

The new N7778C’s balance of features, performance and price makes it suitable for cost-effective, high-throughput manufacturing-floor component testing.

N7779C

The new N7779C basic line step-tunable laser source is ideal for cost-effective testing of broadband optical devices. It can also serve as a highly stable, tunable local oscillator for receiver testing or transmission experiments.

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The N7779C basic line step-tunable laser source is ideal for cost-effective testing of broadband optical devices. It can also serve tunable local oscillator.

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KeysightCare Support Plans

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Calibrate your test equipment — Keysight and other brands — every 6, 12, 24, or 36 months for peak performance.

Tech Refresh Services

Extend, upgrade, or migrate to newer test equipment that meets your timeline and budget.

Featured Resources for the Tunable Laser Source Module

Application Notes 2021.06.15

CWDM and LWDM Components Wavelength and Polarization Test

Configuring test solutions for CWDM and LAN-WDM component test.

2021.06.15

Technical Overviews 2024.03.13

Tunable Laser Source Families

The selection guide gives an overview on wavelength coverage of the different tunable laser families.

2024.03.13

Data Sheets 2024.12.05

Keysight N777-C Family of Tunable Laser Sources

The Keysight Technologies N777-C Family of Tunable Laser Sources offers the full wavelength range from 1240 nm to 1650 nm with no wavelength gaps. The N777-C tunable laser sources realize the cost efficiency and performance required to test components for coarse and dense wavelength division multiplexing (CWDM, DWDM, 100GBASE-LR4) and passive optical networks (PON).

2024.12.05

Brochures 2018.03.07

Lightwave Catalog: Test & Measurement Networks and Data Centers

The catalog for high-performance optical T&M solutions provides information on test applications and test equipment for core fiber networks and data centers.

2018.03.07

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FREQUENTLY ASKED QUESTIONS - Tunable Lasers

WHAT IS A TUNABLE LASER?

A tunable laser is an instrument that emits light at various tunable wavelengths. This tunability allows it to adapt to different applications in fields like data center networking and optical testing.

WHAT ARE THE MAIN APPLICATIONS OF TUNABLE LASERS?

Tunable lasers are used in optical communication systems, fiber optic testing, and wavelength-division multiplexing (WDM). Tunable lasers are used as signal sources when testing optical systems for making spectral measurements of passive components and light-detecting components.

HOW DOES TUNABILITY BENEFIT OPTICAL COMMUNICATIONS?

In optical communication, tunable lasers enable dynamic wavelength assignment and reconfiguration of optical channels, sweeping the wavelength to emulate WDM operations. This flexibility is vital for optimizing network performance, increasing bandwidth, and reducing costs.

WHAT ARE THE MOST IMPORTANT SPECIFICATIONS FOR A TUNABLE LASER?

Important specifications to consider for when choosing a tunable laser include: wavelength, wavelength accuracy, optical power output, and sweep speeds.

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