IEICE TRANSACTIONS on Electronics
High-Sensitivity Optical Receiver Using Differential Photodiodes AC-Coupled with a Transimpedance Amplifier
Summary :
To address the bandwidth bottleneck that exists between LSI chips, we have proposed a novel, high-sensitivity receiver circuit for differential optical transmission on a silicon optical interposer. Both anodes and cathodes of the differential photodiodes (PDs) were designed to be connected to a transimpedance amplifier (TIA) through coupling capacitors. Reverse bias voltage was applied to each of the differential PDs through load resistance. The proposed receiver circuit achieved double the current signal amplitude of conventional differential receiver circuits. The frequency response of the receiver circuit was analyzed using its equivalent circuit, wherein the temperature dependence of the PD was implemented. The optimal load resistances of the PDs were determined to be 5kΩ by considering the tradeoff between the frequency response and bias voltage drop. A small dark current of the PD was important to reduce the voltage drop, but the bandwidth degradation was negligible if the dark current at room temperature was below 1µA. The proposed circuit achieved 3-dB bandwidths of 18.9 GHz at 25°C and 13.7 GHz at 85°C. Clear eye openings in the TIA output waveforms for 25-Gbps 27-1 pseudorandom binary sequence signals were obtained at both temperatures.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E102-C No.4 pp.380-387
- Publication Date
- 2019/04/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.2018ECP5047
- Type of Manuscript
- PAPER
- Category
- Optoelectronics
Authors
Daisuke OKAMOTO
Tohoku University
Hirohito YAMADA
Tohoku University
Keyword
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Daisuke OKAMOTO, Hirohito YAMADA, "High-Sensitivity Optical Receiver Using Differential Photodiodes AC-Coupled with a Transimpedance Amplifier" in IEICE TRANSACTIONS on Electronics,
vol. E102-C, no. 4, pp. 380-387, April 2019, doi: 10.1587/transele.2018ECP5047.
Abstract: To address the bandwidth bottleneck that exists between LSI chips, we have proposed a novel, high-sensitivity receiver circuit for differential optical transmission on a silicon optical interposer. Both anodes and cathodes of the differential photodiodes (PDs) were designed to be connected to a transimpedance amplifier (TIA) through coupling capacitors. Reverse bias voltage was applied to each of the differential PDs through load resistance. The proposed receiver circuit achieved double the current signal amplitude of conventional differential receiver circuits. The frequency response of the receiver circuit was analyzed using its equivalent circuit, wherein the temperature dependence of the PD was implemented. The optimal load resistances of the PDs were determined to be 5kΩ by considering the tradeoff between the frequency response and bias voltage drop. A small dark current of the PD was important to reduce the voltage drop, but the bandwidth degradation was negligible if the dark current at room temperature was below 1µA. The proposed circuit achieved 3-dB bandwidths of 18.9 GHz at 25°C and 13.7 GHz at 85°C. Clear eye openings in the TIA output waveforms for 25-Gbps 27-1 pseudorandom binary sequence signals were obtained at both temperatures.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.2018ECP5047/_p
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@ARTICLE{e102-c_4_380,
author={Daisuke OKAMOTO, Hirohito YAMADA, },
journal={IEICE TRANSACTIONS on Electronics},
title={High-Sensitivity Optical Receiver Using Differential Photodiodes AC-Coupled with a Transimpedance Amplifier},
year={2019},
volume={E102-C},
number={4},
pages={380-387},
abstract={To address the bandwidth bottleneck that exists between LSI chips, we have proposed a novel, high-sensitivity receiver circuit for differential optical transmission on a silicon optical interposer. Both anodes and cathodes of the differential photodiodes (PDs) were designed to be connected to a transimpedance amplifier (TIA) through coupling capacitors. Reverse bias voltage was applied to each of the differential PDs through load resistance. The proposed receiver circuit achieved double the current signal amplitude of conventional differential receiver circuits. The frequency response of the receiver circuit was analyzed using its equivalent circuit, wherein the temperature dependence of the PD was implemented. The optimal load resistances of the PDs were determined to be 5kΩ by considering the tradeoff between the frequency response and bias voltage drop. A small dark current of the PD was important to reduce the voltage drop, but the bandwidth degradation was negligible if the dark current at room temperature was below 1µA. The proposed circuit achieved 3-dB bandwidths of 18.9 GHz at 25°C and 13.7 GHz at 85°C. Clear eye openings in the TIA output waveforms for 25-Gbps 27-1 pseudorandom binary sequence signals were obtained at both temperatures.},
keywords={},
doi={10.1587/transele.2018ECP5047},
ISSN={1745-1353},
month={April},}
Copy
TY - JOUR
TI - High-Sensitivity Optical Receiver Using Differential Photodiodes AC-Coupled with a Transimpedance Amplifier
T2 - IEICE TRANSACTIONS on Electronics
SP - 380
EP - 387
AU - Daisuke OKAMOTO
AU - Hirohito YAMADA
PY - 2019
DO - 10.1587/transele.2018ECP5047
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E102-C
IS - 4
JA - IEICE TRANSACTIONS on Electronics
Y1 - April 2019
AB - To address the bandwidth bottleneck that exists between LSI chips, we have proposed a novel, high-sensitivity receiver circuit for differential optical transmission on a silicon optical interposer. Both anodes and cathodes of the differential photodiodes (PDs) were designed to be connected to a transimpedance amplifier (TIA) through coupling capacitors. Reverse bias voltage was applied to each of the differential PDs through load resistance. The proposed receiver circuit achieved double the current signal amplitude of conventional differential receiver circuits. The frequency response of the receiver circuit was analyzed using its equivalent circuit, wherein the temperature dependence of the PD was implemented. The optimal load resistances of the PDs were determined to be 5kΩ by considering the tradeoff between the frequency response and bias voltage drop. A small dark current of the PD was important to reduce the voltage drop, but the bandwidth degradation was negligible if the dark current at room temperature was below 1µA. The proposed circuit achieved 3-dB bandwidths of 18.9 GHz at 25°C and 13.7 GHz at 85°C. Clear eye openings in the TIA output waveforms for 25-Gbps 27-1 pseudorandom binary sequence signals were obtained at both temperatures.
ER -
English
