An output current waveform compensation technique for ultra-high speed VCSEL driver

Author

Yuanlong Zhou ; Jun Feng ; Chuanshi Yang

Author_Institution

Inst. of RE-&OE-ICs, Southeast Univ., Nanjing, China

fYear

2014

fDate

28-31 Oct. 2014

Firstpage

1

Lastpage

3

Abstract

In order to improve the eye diagram performance of output current in vertical-cavity surface-emitting laser (VCSEL) driver, the influence made by bond wire on high speed output waveform is discussed in this paper, based on a practical VCSEL model with bond wire inductance. A technique based on pre-emphasis is used to compensate the output current waveform. And by analyzing the waveforms in time domain, a conclusion is drawn that the optimal delay time for compensation is equal to the period of output ringing. The effectiveness of this compensation technique is verified by model simulation result and post-simulation result of a 22Gb/s VCSEL driver circuit in 65nm CMOS process.

Keywords

CMOS integrated circuits; compensation; driver circuits; inductance; integrated optoelectronics; laser cavity resonators; surface emitting lasers; CMOS; bit rate 22 Gbit/s; bond wire inductance; eye diagram performance; optimal delay time; output current waveform compensation technique; size 65 nm; ultra-high speed VCSEL driver; vertical-cavity surface-emitting laser driver; Abstracts; Atmospheric modeling; Delays; Integrated optics; Load modeling; Very large scale integration; Wires;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State and Integrated Circuit Technology (ICSICT), 2014 12th IEEE International Conference on

Conference_Location

Guilin

Print_ISBN

978-1-4799-3296-2

Type

conf

DOI

10.1109/ICSICT.2014.7021554

Filename

7021554