Hey Bennu, TAG! Four years and roughly 2 billion miles ago, on a planet far, far away, a bold mission was initiated. NASA launched the Origins-Spectral Interpretation-Resource Identification-Security-Regolith Explorer, known as OSIRIS-REx, to analyze and sample the asteroid Bennu. Traveling onboard the spacecraft is a tiny, but highly sophisticated VIAVI optical filter array that is […]
The citizen band (CB) radio was invented in 1945, but really gained popularity in the 1970s. CB radios were mainly used by emergency personnel until the oil crisis of 1973. This crisis helped push CB radios into the hands of everyday citizens to notify drivers which gas stations had fuel. President Jimmy Carter declared October […]
Where’s the problem? The basic function of a TDR is to test a cable to either verify its length and quality, or to identify points in the cable that are causing problems. Traditionally the user would look at the trace, in which reflections are indicated by positive or negative deviations, and place a marker on […]
As we know, the demand for broadband services is on the rise and demand is not restricted to towns and cities. Folks living in rural locations need good-quality, high-speed services just as much as their urban cousins. For the majority of cases, especially greenfield sites with no existing infrastructure, Passive Optical Networks (PON) and Fiber-to-the-Home […]
Fiber is being pushed deeper and deeper into access networks worldwide as service providers continue to address subscriber demands for higher capacity services. Going “fiber deep” could be part of G.fast deployments for telco operators or Distributed Access Architecture (DAA) upgrades for cable companies, but the next step (or end step) is full fiber-to-the-premise (FTTP) […]
Recent events have abruptly led to the mass-adoption of remote work, permanently changing the way we perceive our digital environments. As we adjust and adapt ourselves to home isolation, technology has become our sole space for community and collaboration. These disruptions have transformed the ways we look at civic, social, and professional engagement for good. […]
In anticipation of growth in the 3D imaging and sensing market, and to further enhance support of our Optical Security and Performance Products customers, VIAVI has completed construction of a new manufacturing plant and cleanroom facility in Henrietta, New York. The new plant replaces a facility formerly operated by RPC Photonics, which VIAVI acquired in […]
With the move to pluggable coherent optical modules for the first time since 10G, we see client and line side considerations coming together. The most obvious example of this is optical signal to noise (OSNR) and related measurements. For any modules with the potential for use in an amplified system, OSNR becomes the fundamental figure […]
With the advent of 400G Ethernet, it has become critically important to fully understand and validate Forward Error Correction (FEC) logic and the related software and firmware. 400G Ethernet uses PAM-4 signalling optically and electrically. Because of the susceptibility to the impact of noise, distortion, and other disturbances, most links will run with a raw error […]
Growing up in Castleisland, County Kerry, my family was lucky to know the famous journalist Con Houlihan. With his fantastic command of the written word he was often asked to advise on the progress of young student’s written English by concerned mothers. Con’s stock reply would normally be ‘Well, they are making all the right […]
