Directly-Modulated Lasers

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Optical Interaction Science".

Deadline for manuscript submissions: closed (20 September 2022) | Viewed by 3964

Special Issue Editors


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Guest Editor
Department of Informatics and Telecommunications, National and Kapodistrian University of Athens, Panepistimiopolis, Ilissia, 15784 Athens, Greece
Interests: optical communications and networks; photonic devices; subsystems; photonic integration;

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Guest Editor
NTT Corporation, Atsugi, Japan
Interests: digital signal processing; nonlinear systems; optical communications; photonics; photonics, optoelectronics and optical communications

Special Issue Information

Dear Colleagues,

With the recent rise of data traffic, owing to big-data and AI applications, more emphasis is placed on photonics technologies due to their superior bandwidth and energy-efficiency capabilities. Data center and super-computer architectures, in particular, are expected to soon rely on components and systems that go beyond 100-Gbps-per-lane, with desired efficiencies lower than 1-pJoule/bit. One of the most promising device for supporting such a growth in an economic way is the Directly-Modulated Laser (DML), which is arguably the most energy-efficient component among photonic transmitters. Meanwhile, DMLs are also expected to play a role in emerging ICT applications such as satellite communications and neuromorphic processors due to their low-power consumption and unique physics.

In this Special Issue, we welcome submissions related to all aspects surrounding DMLs, from device design to transmission and systems. Particular focus will be given on high-speed operation and energy-efficiency, but complimentary aspects such as high-temperature operation, AI-assisted design, and novel applications of DMLs are also strongly encouraged. Topics of interest include, but are not limited to, the following areas:

  • DML design for bandwidth enhancement;
  • Low-operating-power and novel DML structures;
  • High-temperature operation;
  • Novel materials and fabrication methods;
  • Machine-learning-assisted DML design;
  • WDM and SDM transmitters based on DMLs;
  • DML-specific digital and analogue signal processing;
  • Novel applications of DMLs in AI and computing;
  • DMLs for Satellite Communications and emerging applications;
  • DMLs role in neuromorphic processing and reservoir computing.

Prof. Dr. Dimitris Syvridis
Dr. Nikolaos Panteleimon Diamantopoulos
Guest Editors

Manuscript Submission Information

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Keywords

  • photonic devices
  • photonic integration

Published Papers (2 papers)

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Research

9 pages, 3520 KiB  
Communication
Directly Modulated Tunable Single-Mode Lasers Based on a Coupled Microcavity
by Miao-Qing Wang, You-Zeng Hao, Zhen-Ning Zhang, Bin Zhang, Yue-De Yang, Jin-Long Xiao, António L. Teixeira and Yong-Zhen Huang
Photonics 2022, 9(11), 827; https://doi.org/10.3390/photonics9110827 - 04 Nov 2022
Cited by 1 | Viewed by 1066
Abstract
In this work, we investigate an alternative directly modulated laser solution with applications to multiwavelength 25 Gb/s systems. The presented solution is based on a hybrid square/rhombus-rectangular laser (HSRRL), which consists of a Fabry–Pérot (FP) cavity and a square/rhombus microcavity (SRM). This structure [...] Read more.
In this work, we investigate an alternative directly modulated laser solution with applications to multiwavelength 25 Gb/s systems. The presented solution is based on a hybrid square/rhombus-rectangular laser (HSRRL), which consists of a Fabry–Pérot (FP) cavity and a square/rhombus microcavity (SRM). This structure is implemented and demonstrates single-mode lasing over a wide wavelength tuning range (30.8 nm). Single-mode operation is achieved with a side-mode suppression ratio (SMSR) greater than 30 dB and a linewidth of 10 MHz. Furthermore, with an electrical 3 dB bandwidth of 10 GHz. It is possible to directly modulate at 25 Gb/s with promising performance. These devices are simple and they are expected to meet the cost and power requirements of current networks. Full article
(This article belongs to the Special Issue Directly-Modulated Lasers)
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13 pages, 3182 KiB  
Communication
Experimental Study on 25 Gbps C-Band PON over up to 25 km SMF Using a 10G-Class DML + APD IM-DD System
by Haoyi Wang, Pablo Torres-Ferrera, Valter Ferrero and Roberto Gaudino
Photonics 2021, 8(8), 328; https://doi.org/10.3390/photonics8080328 - 11 Aug 2021
Cited by 5 | Viewed by 2331
Abstract
In this paper we present an experimental analysis of several modulation formats (pulse amplitude modulation (PAM-2), quaternary pulse amplitude modulation (PAM-4) and electrical duobinary (EDB)) for passive optical network (PON) applications at 25 Gbps bit rate in a C-band 10G-class directly modulated lasers [...] Read more.
In this paper we present an experimental analysis of several modulation formats (pulse amplitude modulation (PAM-2), quaternary pulse amplitude modulation (PAM-4) and electrical duobinary (EDB)) for passive optical network (PON) applications at 25 Gbps bit rate in a C-band 10G-class directly modulated lasers (DML) and avalanche photodiode (APD) intensity modulation and direct detection (IM-DD) system over a single mode fiber (SMF) of up to 25 km, optimizing DML operations and demonstrating that PAM-2 is a promising choice. We also theoretically and experimentally analyzed the channel frequency response of DML and SMF affected by DML chirp and SMF chromatic dispersion. Full article
(This article belongs to the Special Issue Directly-Modulated Lasers)
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