Bristol Instruments

The 438 Series Multi-Wavelength Meter from Bristol Instruments (booth 3412) combines Michelson interferometer-based technology with fast Fourier transform analysis in order to measure the wavelength, power, and optical signal-to-noise ratio (OSNR) of as many as 1000 discrete optical signals. With features such as high accuracy and a measurement rate of 10Hz, the model 438 provides the most precise, reliable, and efficient wavelength testing to satisfy the needs of any manufacturing engineer, the company claims. It is the fastest system available for WDM testing applications, enabling reduced testing times and greater production efficiency. The model 438 operates from 1000nm to 1680nm, to cover current testing requirements over the C and L optical bands, and address future testing requirements over the T and O optical bands. The 438 system measures wavelength to an accuracy as high as ±0.3pm, power to ±0.5dB, and OSNR to better than 40dB.

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Cost and compatibility can make a compelling case for pushing 100Gb/s bandwidth over a single optical channel, both as individual links and supporting 400Gb/s Ethernet, finds Andy Extance

Analysis and opinion
Analysis and opinion
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Robin Mersh takes a look at how the industry is creating next-generation optical access fit for 5G

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Technological advances to aid the increasing demand for bandwidth, on the path towards the terabit network, should lead to optical signals that are flexible and adaptive, like water, argues Dr Maxim Kuschnerov and Dr Yin Wang