Title: Options, feasibility, and availability of 2 /spl times/ 4 90/spl deg/ hybrids for coherent optical systems
Abstract: Coherent optical transmission systems offer enhanced possibilities concerning multilevel modulation and the electronic compensation of transmission impairments. One of the key components in a homodyne in-phase/quadrature (IQ) receiver is a 2 times 4 90deg hybrid. However, this component is only commercially available in a form that requires an additional active control loop. This paper presents the different possible alternatives for the realization of the 2 times 4 90deg hybrids and discusses their availability and properties, as well as the practical implementation considerations
Publication Year: 2006
Publication Date: 2006-03-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 107
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