Undersea fiber optical systems have shown tremendous advances over the past one or two decades. Capacities have increased by 20x while the cost per bit of submarine transmission has decreased by 250 times. These advances have been primarily a result of coherent transmission and I will highlight all of the main points regarding these advances. This has led to the recent deployment of 16-QAM transmission on a trans-Atlantic link! Future directions in submarine fiber optic transmission systems, such as SDM, will also be discussed.
Dr. Grubb is currently a Global Optical Architect at Facebook, overseeing the build of several new open submarine cable systems and introducing new optical technologies for Facebook's global network. Prior to Facebook, he was a Fellow at Infinera where for 14 years he directed work on next generation Photonic Integrated optical and network technologies. Dr. Grubb was also responsible for the first commercial introduction of Raman amplifiers in fiber networks. He demonstrated and patented several unique laser and amplifier devices while at Bell Labs, including the cascaded Raman resonator. He has held positions at Corvis, SDL and AT&T/Lucent Bell Laboratories. Dr. Grubb has over 100 published papers and conference contributions and over 75 issued US Patents.