Abstract
High-sensitivity optical receivers are key elements for multi- Gbit/s-data-rate optical transmission systems. P-I-N-HEMT optical receivers achieve lowest noise performance by using reactive noise tuning at the input.1 However, current optical receiver designs are restricted to a limited number of purely inductive noise-matching networks. This has constrained the design potential of these receivers. Moreover, they have been based on simple noise representations of devices that are difficult to characterize accurately at microwave frequencies. In this work we report a new synthesis design procedure that has resulted in new classes of noise-matching network topology. The technique is also based on accurate noise-figure data. This has resulted in ultralow noise and wideband receiver operation.
© 1993 Optical Society of America
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