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Proceedings Paper

Design of 2.5Gb/s CMOS optical transceiver array
Author(s): Kyung-Jik Lee; Hee-Hyun Lee; Sang-Bong Lee; Young-Wan Choi
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Paper Abstract

We describe design of 2.5Gb/s CMOS optical transceiver array using 0.35 mm CMOS technology. The transceiver array consists of Laser Diode (LD) driver and limiting amplifier with current decision circuit. CMOS LD driver offers the capability of independent DC and modulation current adjustments. The DC component used to pre-bias the LD is adjustable at a range of 0~30 mA. Optical receiver consists of current decision circuit with voltage output buffer. Optical receiver allows wide dynamic range of input current. The decision circuit uses positive feedback from the cross-gate connection of two NMOSs to increase the gain of the decision element, while the output buffer convert the output of the decision circuit into a logic signal(i.e., 0 or 3.3V). With this design technique, we have succeeded in developing a CMOS optical transceiver array with high performance.

Paper Details

Date Published: 9 July 2003
PDF: 8 pages
Proc. SPIE 4998, Photonic Integrated Systems, (9 July 2003); doi: 10.1117/12.476543
Show Author Affiliations
Kyung-Jik Lee, Chung-Ang Univ. (South Korea)
Hee-Hyun Lee, Chung-Ang Univ. (South Korea)
Sang-Bong Lee, Chung-Ang Univ. (South Korea)
Young-Wan Choi, Chung-Ang Univ. (South Korea)

Published in SPIE Proceedings Vol. 4998:
Photonic Integrated Systems
Andrew R. Pirich; Paul L. Repak; Ray T. Chen; Joseph C. Chon; Louay A. Eldada; Andrew R. Pirich; Paul L. Repak; Ray T. Chen; Joseph C. Chon; Louay A. Eldada, Editor(s)

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