Formulas and charts are given which aid the design of right circular cylinder cavity resonators operating in the TE O1n mode, which yields the highest Q for a given volume. The application of these to the design of an echo boll:radar test set is shown, and practical considerations arising in the construction of a tunable cavity are discussed.
40-Gbit/s photoreceiver modules for 1.55- mu m TDM system applications covering RZ and NRZ coding are described. The modules contain an InP-OEIC with a monolithic integration of a waveguide-integrated photodiode and a traveling-wave amplifier
A detector stage comprising a photodiode, a field-effect transistor, and a load resistor, and a wavelength demultiplexer have been monolithically integrated in the GaInAsP/InP material system. Chips were mounted into complete modules and operated in a 1.3 μm/1.55 μm bidirectional transmission link. At 576 Mbit/s and 10−9 bit error rate the sensitivity of the module was −21 dBm, while the intrinsic sensitivity of the receiver was determined to be −28 dBm.
A photoreceiver optoelectronic integrated circuit based on InP with a bandwidth of 37 GHz is presented. The receiver consists of a 50 GHz waveguide-integrated photodiode and a distributed amplifier with a bandwidth of 39.5 GHz, which is composed of four high-electron mobility transistors. A system experiment at 40 Gb/s receiving an return-to-zero coded optical input signal is demonstrated, and a good quality of eye pattern is achieved
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