Chinese Optics Letters, 2018, 16 (6): 062501, Published Online: Jul. 2, 2018
112 Gbit / s transmitter optical subassembly based on hybrid integrated directly modulated lasers
Abstract
Based on the hybrid integration technology, an ultra-compact and low cost transmitter optical subassembly module is proposed. Four directly modulated lasers are combined with a coarse wavelength division multiplexer operated at the O-band. The bandwidth for all channels is measured to be approximately 3 GHz. The 112 Gb / s transmission is experimentally demonstrated for a 10 km standard single mode fiber (SSMF), in which an optical isolator is used for avoiding the back-reflected and scattered light to improve the bit error rate (BER) performance. A low BER and clear eye opening are achieved for 10 km transmission.
Zhike Zhang, Yu Liu, Junming An, Yiming Zhang, Zeping Zhao, Jianguo Liu, Ninghua Zhu.