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Characterization and direct modulation of a multi-section PIC suited for short reach optical communication systems

Hammad, Mohab, Kaszubowska-Anandarajah, Aleksandra orcid logoORCID: 0000-0003-4811-9273, Pascual, M. Deseada Gutierrez, Landais, Pascal orcid logoORCID: 0000-0002-4807-0695, Lakshmijayasimha, Prajwal, Jain, Gaurav and Anandarajah, Prince M. orcid logoORCID: 0000-0001-7335-8044 (2020) Characterization and direct modulation of a multi-section PIC suited for short reach optical communication systems. Photonics, 7 (3). pp. 1-14. ISSN 2304-6732

A multi-section active photonic integrated circuit (PIC) is characterized in detail to gauge its suitability as a transmitter for short reach applications. The PIC is 1.5 mm long and consists of two lasers integrated in a master-slave configuration, which enables optical injection locking (OIL) of the slave laser. The beneficial impact of the injection is characterized by static and dynamic measurements. The results show a reduction of the optical linewidth from 8 MHz to 2 MHz, a relative intensity noise (RIN) value as low as −154.3 dB/Hz and a 45% improvement of the slave laser modulation bandwidth from 9.5 GHz to 14 GHz. This frequency response enhancement allows the direct modulation of the slave gain section at a data rate of 10.7 Gb/s and an error-free transmission over 25 km of standard single-mode fiber (SSMF). Transmission performance of the injected case shows a 2 dB improvement in the minimum optical power required to achieve a bit error rate of 3.8×10−3 (hard decision forward error correction limit). These results demonstrate that the multi-section PIC can serve as an attractive cost-efficient transmitter in a wide variety of low-cost short-reach data communication applications.
Item Type:Article (Published)
Additional Information:Article number 55
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Official URL:http://dx.doi.org/10.3390/photonics7030055
Copyright Information:© 2020 The Authors.
Funders:Science Foundation of Ireland’s (SFI) career development award (15/CDA/3640), SFI 17/IFB/5385, and Regional Development Fund (13/RC/2077
ID Code:24939
Deposited On:27 Aug 2020 09:44 by Mohab Nabil mohamed fathy Hammad . Last Modified 20 Sep 2023 13:20

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