Work

Highly-Sensitive Integrating Optical Receiver With Large PIN Photodiode

Year: 2024

Type: article

Abstract: This paper presents a highly-sensitive monolithic optoelectronic receiver in$\mathbf{180\, {nm}}$CMOS. An integrating front-end with noise matching via an negative Miller capacitance is proposed, to reduce the power penalty imposed by large PIN photodiodes (PDs). Three new multi-dot PIN PDs are integrated with the front-end. At a wavelength of$\mathbf{642\, {nm}}$and reverse bias of$\mathbf {8}\,\mathbf {V}$, their responsivity (capacitance) is$\mathbf {0.38\, {A/W}}$($\mathbf{29\, {fF}}$),$\mathbf {0.36\, {A/W}}$($\mathbf{33\, {fF}}$), and$\mathbf {0.43\, {A/W}}$($\mathbf{123\, {fF}}$), respectively. Compared to our previous integrating PIN receivers, the light-sensitive area is up to 30 times larger. At a supply voltage of$\mathbf {1.8\, {V}}$, wavelength of$\mathbf{642\, {nm}}$, bit rate of$\mathbf {20\, {Mbit/s}}$, and reference${\mathbf{BER}=2\cdot 10^{-3}}$, the prototype receiver achieves a sensitivity of$\mathbf {-55.4\, {dBm}}$for the first PD,$\mathbf {-56.5\, {dBm}}$for the second PD, and$\mathbf {-53.4\, {dBm}}$for the third PD. The best sensitivity equals a distance of only$\mathbf {21.2\, {dB}}$to the quantum limit.

Source: IEEE photonics journal

DOI: 10.1109/jphot.2024.3487302

Authors: Simon Michael Laube, Christoph Gasser, Kerstin Schneider-Hornstein, Horst Zimmermann

Institution: TU Wien

Language: English

Topic: Semiconductor Lasers and Optical Devices

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,995

Funder: Austrian Science Fund