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Photonics Handbook
Fiber Optics
Fiber Lasers: Continuing to Power Growth
Early fiber lasers were inefficient and limited to low powers, until more effective methods emerged to deliver the pump light into the cladding. Valentin Gapontsev, founder and CEO of IPG Photonics, is credited with pioneering the use of distributed...
Silicon Photonics: Light Is the Ultimate Medium for High-Speed Communications
Silicon photonics is widely considered a key enabling technology for further development of optical interconnect solutions needed to address growing traffic on the internet. From the first submarine optical cable to the fiber-to-home deployment to...
Fiber Optics: Understanding the Basics
Nothing has changed the world of communications as much as the development and implementation of optical fiber. This article provides the basic principles needed to work with this technology. Optical fibers are made from either glass or plastic....
Adhesives for Fiber Optics Assembly: Making the Right Choice
Using the proper adhesive in the assembly of fiber optic components not only saves time and expense, but also can improve reliability and performance. Adhesives for fiber optic components that perform well on glass, metal, ceramic and most plastic...
Connectors and Splices: Correct Alignment Spells Success
Whether the job is splicing fibers together or connecting fibers to system devices, alignment is the key to success. This article explores the many ways to achieve that goal. Just as an electronic connector provides a pluggable connection between...
OTDRs: Finding the Weak Spots in Fiber Links
The optical time-domain reflectometer (OTDR) is used to characterize a fiber optic span. It performs single-ended tests and can calculate fiber attenuation and uniformity and splice and connector losses. It can also locate breaks and determine fiber...
Photonics Packaging: Optical Communication Components
An examination of the packaging technology of photonic components for optical communication and other areas of photonics.Photonic components are key elements for the information te...
Characterizing High-Speed Transmitters: The Emphasis Is on Waveforms
The basic fiber-based communications system consists of a laser transmitter which converts electrical data to intensity-modulated light, a fiber optic cable as short as a few meters or as long as 100-plus kilometers, and a photodetector that...
Polarization in Fiber Systems: Squeezing out More Bandwidth
To appease the demand for bandwidth, telecommunication operators are pushed to increase the per-channel data rate of wavelength division multiplexing (WDM) systems. As bit rates increase to meet expanding demand, systems have become increasingly...
Polarization Mode Dispersion: Concepts and Measurement
The performance of high-speed, digital fiber optic communications systems depends upon how reliably the receiver is able to distinguish closely spaced bits of information. Dispersive effects — physical mechanisms that broaden transmitted...
Spectrum Analysis for DWDM: New Instruments Meet the Challenge
The demand for bandwidth drives a growing need for a new breed of test and measurement instruments. As system and cable installers try to optimize their links, the preferred method has become high-speed DWDM.

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