Unlocking the Future of Fiber Optics: Exclusive Insights with Paul Green Jr.

Strategic Insights -

Paul Green Jr., an esteemed researcher and manager of IBM's Advanced Optical Networking Group, is driving innovation in the field of all-optical networking. His team, consisting of seven researchers, aims to enhance the efficiency and speed of information transfer through fiber. Green's outstanding contributions to data communication theory, protocols, architectures, and technology have earned him IBM's ACM SIGCOMM Award for lifetime achievement in 1991.

Key Takeaways:

  • Green believes the majority of the money in fiber optics and related businesses, such as all-optical networking, will be made in networks within the next five years, driven by the need for increased bandwidth and commercially shippable LANs and MANs using WDM.
  • Network costs are a significant barrier, with current optical components being expensive due to the cost of parts. However, costs are decreasing, and Green predicts the industry can start building commercially available LANs and MANs using commercially available tunable filters and DFB lasers.
  • The primary fiber optics issue in 1994 remains addressing the costs of opto-electronics components, with not enough big players showing interest in reducing these costs. Fiber capabilities are underutilized, with four orders of magnitude more services available with TDM technology.
  • The fiber optics market is limited due to high costs, requiring development of tunable and multi-channel WDM transmitters, receivers, and low-cost broadband-cascadeable amplifiers.
  • Planar star couplers, magneto-optic isolators, and low-cost laser coupling into waveguides or fibers are the latest commercial developments in opto-electronics lithography in fiber optics. The planar Mach-Zehnder Chain, invented by Nippon Telegraph & Telephone, is another significant innovation.
  • Wideband cascadeable amplifiers are a crucial development from a research perspective, allowing for more WDM channels over longer distances.
  • The lack of R&D jobs in fiber optics is a serious concern, but the government's increased sponsorship, particularly from ARPA and NIST, is working to alleviate this issue.
  • IBM's research into fiber optics and all-optical networking is advancing with the Rainbow Project, which has received $1 million funding from ARPA. The project aims to develop all-optical networks, upgrade transmission speed to 1 Gigabit per second per node, and connect supercomputers.

Statistics:

  • A budget of $1 million has been provided to IBM's Rainbow research project by ARPA.
  • The Rainbow Project aims to connect up to 32 supercomputers across a several-kilometer-square area at the Los Alamos Complex.
  • IBM is working on Rainbow 3, a packet-switching network using new tunable filters from Micron Optics, which can tune three orders of magnitude more rapidly than previous filters.
  • The group is conducting beta tests with large finance houses in New York City and elsewhere for dense WDM links, connecting computer centers.
  • The Advanced Research Projects Agency (ARPA) has increased funding for optical networks by three times the amount allocated three years ago.

Sources:

  • Paul Green Jr., IBM's Advanced Optical Networking Group
  • ACM SIGCOMM Award for lifetime achievement (1991)
  • Nippon Telegraph & Telephone (planar Mach-Zehnder Chain)
  • Micron Optics (tunable filters)
  • Los Alamos National Laboratory
  • IBM Rainbow Project (funded by ARPA)