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This work assesses the relationship between common theoretical constructs involved in simulation design and evaluation. Specifically, the degree to which realism is a desired goal in design is examined through a thorough review of the available literature. It was found that, especially for training simulations, high fidelity does not always beget improved outcomes, and this finding was corroborated...
A high performance (HP) SiGe HBT in IBM's 130nm SiGe BiCMOS8XP technology demonstrating peak fT/fMAX of 250/330GHz is reported for mm-wave and high performance RF/analog applications. The HBT has been developed as an optional device within the existing IBM 130nm SiGe BiCMOS8HP technology which includes a full suite of 130nm RFCMOS FETs, passives and mm-wave distributive passive devices. CML ring oscillators...
We describe a system that combines a cavity-stabilized laser, a hydrogen maser and a cesium fountain clock. It provides an optical reference frequency that over the course of half a day drifts with less than 100 µHz/s. Furthermore it allows for a convenient measurement of an absolute frequency in the optical domain.
The need for broadband Internet services requires the deployment of high-capacity access networks. In the next years, network operators will invest high amounts of money to deploy new fiber-based systems. In this paper we present a techno-economic calculation model and case-study results to compare three diverse access technologies: GPON, Active Optical Networking, and Point-to-Point optical networks.
InP is the material of choice for many applications (telecoms, automotive, medical, industrial sensors, spectroscopy, displays, lighting). All these markets demand constant improvements in the field of cost reduction and profitability at every stage of the manufacturing chain. At the crystal level, it is important to increase the number of wafers per boule. The growth of long 2, 3 and 4 inch crystals...
A demonstrator has been installed in a field environment in Deutsche Telekom's project `global seamless networks' (GSN+). Three local storage area networks (SAN) in different laboratories are linked together via fibers with lengths of 80 and 860 km. This testbed within the GSN+ demonstrator is used for testing SAN extension and demonstrating new SAN services. The SAN services are based on the fibre...
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