Optical Fibers

Electro-optics

High-performance active and passive optical fibers for reliable, efficient fiber laser systems

High-power CW, quasi-CW, and pulsed laser systems

suited for high-performance fiber laser

nLIGHT optical fibers are engineered for demanding CW, quasi-CW, and pulsed laser applications, offering high power handling, excellent beam quality, and long-term stability. Flexible fiber designs enable precise system optimization for industrial and security environments:

Ytterbium (Yb), Erbium (Er) or Thulium (Tm)

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Green Architecture

Evermind™ template is crafted like sustainable structures — clean, scalable, and built to last.

Precision Engineering

Every layout and component is tuned with variables and pixel-perfect details, so your brand stands on solid ground.

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Green Architecture

Evermind™ template is crafted like sustainable structures — clean, scalable, and built to last.

Precision Engineering

Every layout and component is tuned with variables and pixel-perfect details, so your brand stands on solid ground.

Dynamic Interactions

From nature-inspired transitions to fluid page structures, Evermind™ feels alive yet quietly sophisticated.

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Questions, answered with clarity.

We’ve collected the questions we get all the time, and actually answered them. No mystery, no marketing poetry - just facts. Still have an open question? We're here to help:

Fiber Lasers / Industrial Lasers

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What is real NA?

Real NA is nLIGHT’s method of directly specifying the core numerical aperture (NA) from the finished fiber rather than from preform measurements. This results in more accurate NA values, reduced variation, better beam quality control, and improved matching/splice performance between active and passive fibers

What coating materials are used in double-clad fibers and why?

LIGHT’s double-clad fibers use a dual-layer fluoroacrylate polymer coating: A low-index layer to help guide light inside the inner cladding. A high-index layer for mechanical protection and durability. This coating supports a wide temperature range (-40 °C to +120 °C), performs well in humidity/water immersion tests, and offers long-term reliability

What conditions should I use and store these fibers in?

Operating Temperatures: • Double-clad fibers: -40 °C to +120 °C • Single-clad fibers: -40 °C to +85 °C Storage Conditions: Store between +10 °C to +60 °C with 30%–70% relative humidity, protect from UV, and keep in a dust-free space with protective covers on spools