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An Automatic Gain Control Front-End Optical Receiver for Multi-Level Data Transmission

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3 Author(s)
Atef, M. ; Inst. of Electr. Meas. & Circuit Design, Vienna Univ. of Technol., Vienna, Austria ; Swoboda, R. ; Zimmermann, H.

A receiver optoelectronic integrated circuit (OEIC) with integrated PIN photodiode, an automatic gain control transimpedance amplifier, linear post amplifier and 50 ¿ line driver is presented. Two ICs were designed using 0.6 ¿m BiCMOS technology. One with 760 mV differential output voltage and 623 MHz bandwidth, the other IC has a 420 mV differential output voltage and 712 MHz bandwidth. The post-layout simulation for this optical receiver for multi-level data signals shows a high linearity. The eye diagram of the multi-level signal at a symbol rate of 1.25 Gbaud demonstrates an excellent performance for the optical receiver. The experimental measurement with a binary signal at a bit rate of 1.25 Gb/s indicates that the front-end optical receiver has for 660 nm a sensitivity of -24 dBm for a bit error rate of 10-9. The reached 10%-90% rise- and fall-times are 0.42 ns and 0.40 ns, respectively.

Published in:

NORCHIP, 2008.

Date of Conference:

16-17 Nov. 2008