Title :
A 40-Gb/s Transimpedance Amplifier for Optical Links
Author :
Moeneclaey, Bart ; Verbrugghe, Jochen ; Blache, Fabrice ; Goix, Michel ; Lanteri, Delphine ; Duval, Bernadette ; Achouche, Mohand ; Bauwelinck, Johan ; Xin Yin
Author_Institution :
Dept. of Inf. Technol., Ghent Univ., Ghent, Belgium
Abstract :
This letter presents a low-power transimpedance amplifier (TIA), supporting both 25 and 40-Gb/s communication. It exhibits an optical modulation amplitude sensitivity of -10.6 dBm at 25 Gb/s and -6.4 dBm at 40 Gb/s using a photodiode with a responsivity of 0.55 A/W. The TIA consumes 158 mW from a 2.5 V supply and was manufactured in a 0.13-μm SiGe BiCMOS process. Compared with the state of the art, the presented TIA exhibits a similar sensitivity (at both 25 and 40 Gb/s), while exhibiting a low power consumption for the 40-Gb/s operation.
Keywords :
BiCMOS integrated circuits; Ge-Si alloys; integrated optics; integrated optoelectronics; operational amplifiers; optical communication equipment; optical fibre communication; optical links; optical modulation; photodiodes; SiGe; SiGe BiCMOS process; TIA; bit rate 25 Gbit/s; bit rate 40 Gbit/s; low power consumption; low-power transimpedance amplifier; optical links; optical modulation amplitude sensitivity; photodiode; power 158 mW; responsivity; size 0.13 mum; voltage 2.5 V; BiCMOS integrated circuits; Bit error rate; Noise; Optical fiber communication; Photodiodes; Radio frequency; Sensitivity; SiGe BiCMOS; Transimpedance amplifier (TIA);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2015.2421521
