Jingwei Meng , Zijiang Yang , Zhenzhen Xu , Jihong Xu , Jie Zeng , Pan Dai , Zhenxing Sun , Xiangfei Chen , Hui Liu
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引用次数: 0
Abstract
In this paper, we propose a duplex tunable cascaded DFB laser array (TCDLA) with 8-channel. Due to the duplex DFB sections, the total length of the chip is greatly shortened. A long linearly chirped Bragg grating is introduced in the laser cavity to reduce the grating interference between different adjacent unit lasers. Moreover, multiple equivalent π phase shifts (π-EPS) are designed to improve the mode stability. The designed channel spacing of laser array is 100 GHz, and the reconstruction-equivalent-chirp (REC) technique is used to provide high-precision control of the grating phase. Through the fine-tuning of the injection current, the output of 8-channel tunable laser array is realized by 6 EPSs, and the SMSRs are all greater than 43 dB.
期刊介绍：
Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.
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