Next Article in Journal
Wide-Angle Beam-Steering Using an Optical Phased Array with Non-Uniform-Width Waveguide Radiators
Previous Article in Journal
Unidirectional Optical Kerr Transmittance in Hierarchical Carbon/Platinum Nanostructures
Article

Characterization and Direct Modulation of a Multi-Section PIC Suited for Short Reach Optical Communication Systems

1
Photonics Systems and Sensing Lab., School of Electronic Engineering, Dublin City University, Glasnevin, 9 Dublin, Ireland
2
CONNECT Research Centre, Dunlop Oriel House, Trinity College Dublin, 2 Dublin, Ireland
3
Pilot Photonics, Invent Centre, Dublin City University, Glasnevin, 9 Dublin, Ireland
*
Author to whom correspondence should be addressed.
Photonics 2020, 7(3), 55; https://doi.org/10.3390/photonics7030055
Received: 29 June 2020 / Revised: 27 July 2020 / Accepted: 28 July 2020 / Published: 31 July 2020
(This article belongs to the Section Optical Communication and Network)
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 3.8×103 (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. View Full-Text
Keywords: photonic integration; optical injection; linewidth; relative intensity noise (RIN); frequency response; direct modulation; bit error rate (BER) photonic integration; optical injection; linewidth; relative intensity noise (RIN); frequency response; direct modulation; bit error rate (BER)
Show Figures

Figure 1

MDPI and ACS Style

Hammad, M.N.; Kaszubowska-Anandarajah, A.; Pascual, M.D.G.; Landais, P.; Lakshmijayasimha, P.D.; Jain, G.; Anandarajah, P.M. Characterization and Direct Modulation of a Multi-Section PIC Suited for Short Reach Optical Communication Systems. Photonics 2020, 7, 55. https://doi.org/10.3390/photonics7030055

AMA Style

Hammad MN, Kaszubowska-Anandarajah A, Pascual MDG, Landais P, Lakshmijayasimha PD, Jain G, Anandarajah PM. Characterization and Direct Modulation of a Multi-Section PIC Suited for Short Reach Optical Communication Systems. Photonics. 2020; 7(3):55. https://doi.org/10.3390/photonics7030055

Chicago/Turabian Style

Hammad, Mohab N., Aleksandra Kaszubowska-Anandarajah, M. D.G. Pascual, Pascal Landais, Prajwal D. Lakshmijayasimha, Gaurav Jain, and Prince M. Anandarajah 2020. "Characterization and Direct Modulation of a Multi-Section PIC Suited for Short Reach Optical Communication Systems" Photonics 7, no. 3: 55. https://doi.org/10.3390/photonics7030055

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop