Tunable Laser Basics: Function in Fiber Optics

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This page explains the basics of tunable lasers and their function within fiber optic networks. LASER stands for “Light Amplification by Stimulated Emission of Radiation.”

Essentially, a laser is a light source. It generates coherent and near-monochromatic light through stimulated emission. A semiconductor device operating on this principle is called a “Laser Diode.” The primary function of a laser device, or laser diode, is to convert an electrical signal into light. Traditional laser devices are fixed; they don’t offer control over the output wavelength.

Tunable Laser

Tunable Laser model Finisar S7500 from QUAGWIRE TECHNOLOGIES LLC

As the image shows, a tunable laser allows for continuous adjustment of the emission wavelength. This gives the user control over the wavelength of the output light signal, which is crucial when using it as an input for transmission over a fiber optic network. In essence, you can “tune” the laser to the optimal wavelength for your application.

Acousto Optic Tunable Filter (AOTF) Basics

Acousto Optic Tunable Filter (AOTF) Basics

Explore the basics of Acousto Optic Tunable Filters (AOTF), their operation in optical networks, and their application in Wavelength Selective Switches (WSS).

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acousto optic
wavelength
ROADM Types: WB vs PLC vs WSS vs WXC

ROADM Types: WB vs PLC vs WSS vs WXC

Explore the differences between WB, PLC, WSS, and WXC ROADM types used in fiber optic networks, including configurations, advantages, and disadvantages.

roadm
fiber optic
optical network
Agile Optical Switch: Basics and Functions

Agile Optical Switch: Basics and Functions

Learn about agile optical switches, their functions in fiber optic systems, and their role in dynamically reconfiguring DWDM networks for enhanced service deployment.

optical switch
fiber optic
dwdm network
Dichroic Filter: Definition and Functionality

Dichroic Filter: Definition and Functionality

Explore the functionality of dichroic filters, precision color filters used in WDM networks to selectively pass or reflect specific wavelengths of light.

optical filter
wdm
fiber optic