Chinese Optics Letters, 2016, 14 (12): 120603, Published Online: Aug. 2, 2018  

1.5  μm, 8 × 12.5  Gb/s of hybrid-integrated TOSA with isolators and ROSA for 100  GbE application

Author Affiliations
1 State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
2 Microwave-Photonics Technique Laboratory National Laboratory of Microstructures & School of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
Abstract
Compact transmitter and receiver optical sub-assemblies (TOSA and ROSA) are fabricated in our laboratory and have an aggregated capacity of 100 Gb/s. Specially, directly modulated laser (DML) drivers with two layers of electrical circuit boards are designed to inject RF signals and bias currents separately. For all the lanes, the 3 dB bandwidth of the cascade of the TOSA and ROSA exceeds 9 GHz, which allows the 12.5 Gb/s operation. With the 12.5 Gb/s × 8-lane operation, clear eye diagrams for back-to-back and 30-km amplified transmission with a dispersion compensation fiber are achieved. Low cost and simple processing technology make it possible to realize commercial production.

Zeping Zhao, Yu Liu, Zhike Zhang, 向飞 陈, Jianguo Liu, Ninghua Zhu. 1.5  μm, 8 × 12.5  Gb/s of hybrid-integrated TOSA with isolators and ROSA for 100  GbE application[J]. Chinese Optics Letters, 2016, 14(12): 120603.

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