Over 40-Gbit/s InP HEMT ICs for Optical Communication Systems

Toshihide SUZUKI, Yasuhiro NAKASHA, Hideki KANO, Masaru SATO, Satoshi MASUDA, Ken SAWADA, Kozo MAKIYAMA, Tsuyoshi TAKAHASHI, Tatsuya HIROSE, Naoki HARA, Masahiko TAKIGAWA

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Summary :

In this paper, we describe the operation of circuits capable of more than 40-Gbit/s that we have developed using InP HEMT technology. For example, we succeeded in obtaining 43-Gbit/s operation for a full-rate 4:1Multiplier (MUX), 50-Gbit/s operation for a Demultiplexer (DEMUX), 50-Gbit/s operation for a D-type flip-flop (D-FF), and a preamplifier with a bandwidth of 40 GHz. In addition, the achievement of 90-Gbit/s operation for a 2:1MUX and a distributed amplifier with over 110-GHz bandwidth indicates that InP HEMT technology is promising for system operations of over 100 Gbit/s. To achieve these results, we also developed several design techniques to improve frequency response above 80 GHz including a symmetric and separated layout of differential elements in the basic SCFL gate and inverted microstrip.

Publication
IEICE TRANSACTIONS on Electronics Vol.E86-C No.10 pp.1916-1922
Publication Date
2003/10/01
Publicized
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DOI
Type of Manuscript
Special Section INVITED PAPER (Special Issue on Heterostructure Microelectronics with TWHM2003)
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