56-Gb/s Optical Transmission Performance of an InP HBT PAM4 Driver Compensating for Nonlinearity of Extinction Curve of EAM

• Published in: Journal of lightwave technology Vol. 35; no. 1; pp. 75 - 81
• Main Authors: Kishi, Toshiki, Nagatani, Munehiko, Kanazawa, Shigeru, Kobayashi, Wataru, Yamazaki, Hiroshi, Ida, Minoru, Kurishima, Kenji, Nogawa, Masafumi, Kimura, Shunji, Nosaka, Hideyuki
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.01.2017; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Adaptive optics; Bit error rate; Compensation; Configurations; Driver; electroabsorption modulator (EAM); Electroabsorption modulators; Error analysis; Error detection; Extinction; InP HBT; Integrated optics; Nonlinear optics; Nonlinearity; Optical receivers; Optical sensors; Optical transmitters; Optical variables measurement; Pulse amplitude modulation; pulse amplitude modulation (PAM); Sensitivity; Waveforms

This paper presents a four-level pulse amplitude modulation (PAM4) driver IC that can compensate for the nonlinearity of the extinction curve of an electroabsorption modulator (EAM). The driver was designed and fabricated by using our InP HBT technology (f t = 290 GHz, f max = 320 GHz). To obtain a...