Fiber Optic Light Sources

VIAVI offers the most comprehensive light source and power meter kits for fiber optic networks. Multiple wavelength combinations are available for field, lab, and manufacturing environments.

VIAVI light sources offer versatility in measuring fiber optic light continuity, loss and quality in field, lab, and manufacturing environments. Versatile and compact handheld solutions are offered for field use and ultra-stable, high-power solutions for lab and manufacturing.


A family of pocket-sized and low-cost optical light sources for the installation and maintenance of singlemode and multimode fiber optic networks.
The OLS-85 inspection-ready optical light source is the ideal partner to the SmartClass Fiber OLP-85 and OLP-85P to perform automatic loss test.
Includes a light source (OLS-3x), a power meter (OLP-3x), and additional accessories.
The SmartClass Fiber ORL-85 combine optical power meter (OPM), light source (OLS), continuous wave return loss meter (OCWR), and connector inspection in one compact instrument.

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Pocket Guide

Reference Guide to Fiber Optic Testing

VIAVI Care Support Plans


Understanding Passive Optical Testing


Understanding Fiber Optics

Support at Every Step

We provide support, services, comprehensive training and the resources you need. It’s all part of what we do to maximize the value of your VIAVI investment.

Value add services that compliment your VIAVI system solution and instrument portfolio to provide a total cost of ownership

Customer Service that provides Return Material Authorization (RMA) for repair and calibration

Technical education solutions, product training, and blended learning for technicians who are using new products or working with existing tools

Technical Assistance Center to assist you in using/configuring products or address issues regarding product performance

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Contact us for more information or to receive a price quote. We have the experts to give you the right answer for any of your questions.