发明名称 Overlapping spectrum in optical communication
摘要 An optical add-drop multiplexer including a first filter filtering a first band of wavelengths of a communication spectrum for a first communication segment and a second filter filtering a second band of wavelengths of the communication spectrum for a second communication segment. The second band of wavelengths overlaps the first band of wavelengths in an overlap band of wavelengths. The overlap band may have a variable size. The first band of wavelengths includes a first fraction of the overlap band of wavelengths for the first communication segment and the second band of wavelengths includes a remaining fraction the overlap band of wavelengths for the second communication segment.
申请公布号 US9191141(B2) 申请公布日期 2015.11.17
申请号 US201414312981 申请日期 2014.06.24
申请人 Google Inc. 发明人 Kamalov Valey;Vusirikala Vijay;Koley Bikash;Dangui Vinayak
分类号 H04J14/02 主分类号 H04J14/02
代理机构 Honigman Miller Schwartz and Cohn LLP 代理人 Honigman Miller Schwartz and Cohn LLP
主权项 1. An optical add-drop multiplexer comprising: a first filter configured to receive a communication signal and filter a first band of wavelengths of a communication spectrum for a first communication segment, the first band of wavelengths having a first spectral edge and comprising first guard band wavelengths adjacent the first spectral edge and first information bearing wavelengths adjacent the first guard band wavelengths; and a second filter in parallel with the first filter, the second filter configured to receive the communication signal and filter a second band of wavelengths of the communication spectrum for a second communication segment, the second band of wavelengths having a second spectral edge and comprising second guard band wavelengths adjacent the second spectral edge and second information bearing wavelengths adjacent the second guard band wavelengths, the second band of wavelengths overlapping the first band of wavelengths in an overlap band of wavelengths, the overlap band of wavelengths including a threshold number of common wavelengths between the first spectral edge of the first band of wavelengths and the second spectral edge of the second band of wavelengths, at least one information bearing wavelength of one band of wavelengths overlapping at least one guard band wavelength of the other band of wavelengths, the overlap band having a variable size; wherein the first communication segment includes the first band of wavelengths and a first fraction of the overlap band of wavelengths and the second communication segment includes the second band of wavelengths and a remaining fraction of the overlap band of wavelengths for the second communication segment.
地址 Mountain View CA US