40 Gb/s 4:1 multiplexer and 1:4 demultiplexer IC module using SiGe HBTs

Toru Masuda, Ken ichi Ohhata, Nobuhiro Shiramizu, Eiji Ohue, Katsuya Oda, Reiko Hayami, Hiromi Shimamoto, Masao Kondo, Takashi Harada, Katsuyoshi Washio

Research output: Contribution to journalConference articlepeer-review

32 Citations (Scopus)


A 4:1 multiplexer and a 1:4 demultiplexer IC module were developed by using 0.2-μm self-aligned selective-epitaxial-growth SiGe HBTs. For the data retiming, the multiplexer and the demultiplexer include a frequency divider that operates at over 40 GHz. 50-Gb/s operation for the multiplexer and 48-Gb/s operation for the demultiplexer were observed by measurements using on-wafer probes. We concluded that these modules, which mounted the IC on a ceramic substrate with a brass block, are applicable to transmitter and receiver functions of a 40-Gb/s optical transmission system.

Original languageEnglish
Pages (from-to)1697-1700
Number of pages4
JournalIEEE MTT-S International Microwave Symposium Digest
Publication statusPublished - 2001
Externally publishedYes
EventInternational Microwave Symposium Digest IEEE MTT-S 2001 - Phoenix, AZ, United States
Duration: 2001 May 202001 May 25

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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