Title :
A 25Gb/s Common-Cathode VCSEL Driver
Author :
Kwan Ting Ng ; Yeung Bun Choi ; Keh Chung Wang
Author_Institution :
Hong Kong Appl. Sci. & Technol. Res. Inst. (ASTRI), Shatin, China
Abstract :
A common-cathode VCSEL driver is presented in this paper. Overcoming the large parasitics introduced by the current source at the output node, this VCSEL driver is able to operate at data rate of 25Gb/s. With different rising/falling edge speed, it is able to address the non-linear issues of VCSEL diode. The VCSEL driver was fabricated using IBM8HP BiCMOS technology, dissipating less than 60mW and featuring a core area of 0.45mmX200mm.
Keywords :
BiCMOS integrated circuits; surface emitting lasers; IBM8HP BiCMOS technology; common cathode VCSEL driver; current source; output node; Capacitance; Chirp; Current measurement; Modulation; Optical transmitters; Vertical cavity surface emitting lasers;
Conference_Titel :
Compound Semiconductor Integrated Circuit Symposium (CSICs), 2014 IEEE
Conference_Location :
La Jolla, CA
DOI :
10.1109/CSICS.2014.6978529
