A review of semiconductor lasers for optical communications

Ujager, Farhan Sabir; Zaidi, Syed Sajjad Haider; Younis, Usman

doi:10.1109/honet.2010.5715754

Cited by 15 publications

(7 citation statements)

References 21 publications

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“…Through careful design of the period of the resonator, a single mode can be selected for lasing by minimizing the loss at this mode and increasing the loss significantly for other modes. This means the DFB lasers can guarantee single-mode operation over a relatively large wavelength tuning range of up to several nanometers [74]. The grating could also be part of an integrated waveguide structure if desired.…”

Section: Semiconductor Lasersmentioning

confidence: 99%

Mid-wave and long-wave infrared transmitters and detectors for optical satellite communications—a review

Flannigan

Yoell

2022

J. Opt.

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There has been a recent surge in interest for optical satellite communication utilizing lasers. It is clear to see why, as optical SatCom is capable of higher speed, lighter weight, higher directionality, and higher efficiency versus their radio-based counterparts. Research into optical SatCom has focused on devices operating in the short-wave infrared, which is due to the maturity and commercial availability of such component’s thanks to significant development in terrestrial telecommunications networks. However, short-wave infrared performs poorly in fog and heavy weather, prompting investigations into longer mid-wave and long-wave infrared bands for optical communication instead due to reduced atmospheric losses. This paper provides a comprehensive review of laser transmitters, detectors, and the science behind selecting longer wavelengths for optical SatCom to boost optical SatCom between ground stations and low earth orbit satellite constellations being deployed.

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Section: Semiconductor Lasersmentioning

confidence: 99%

Mid-wave and long-wave infrared transmitters and detectors for optical satellite communications—a review

Flannigan

Yoell

2022

J. Opt.

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“…Coherent emission is produced in these lasers by stimulated emission, and the gain is achieved in the active medium of the semiconductor by electrical injection. Semiconductor lasers are very efficient in converting electrical power into optical power [30]. In PONs, two types of semiconductor lasers are used: single longitudinal mode (SLM) lasers and multilongitudinal mode (MLM) lasers.…”

Section: Slm and Mlm Lasersmentioning

confidence: 99%

Lasers in Passive Optical Networks and the Activation Process of an End Unit: A Tutorial

2020

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It is 21 years since the first passive optical network (PON) was standardized as an asynchronous transfer mode passive optical network (APON) with same optical distribution network scheme as we know in current networks. A lot of PON networks were standardized in the following years and became an important part of telecommunication. The general principles of these PON networks are described in many papers and books, but only a little information about used lasers is available. The aim of this tutorial is to describe lasers used in PON networks and principles of their operation. The paper describes the principles of single longitudinal mode (SLM), multi longitudinal mode (MLM), distributed-feedback (DFB), and Fabry–Pérot (FP) lasers. Furthermore, the lasers are compared by their usage in optical line termination (OLT) for passive optical networks. The second part of this tutorial deals with activation process of optical network unit. The described principle is the same for connection of a new customer or blackout scenario. The end unit is not able to communicate until reach the operational state; each state is defined with physical layer operation and administration and maintenance (PLOAM) messages sequence and their processing.

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“…As technology progressed, transmitting and receiving signals has become possible over longer distances, with more secure methods of data encryption. The development of modern optical communication systems (OCSs) began in the 1970s with devices operating in the visible and infrared wavelength ranges [2]. An OCS has a bandwidth 10 4 times greater than that of radio frequency (RF) and microwave communication systems, allowing many users to communicate at the same time [3].…”

Section: Introductionmentioning

confidence: 99%

“…Optical receivers are primarily responsible for the conversion of optical signals into electrical signals [3]. The photodetector component of an optical receiver detects the optical signal and converts it to electrical current, where the current value is proportional to the number of incident photons [2,6].…”

Section: Introductionmentioning

confidence: 99%

Design and Experimental Study of an Efficient Controlled Cooling System for Optical Communication Laser Diodes

Salim¹,

Mutlag²,

Adnan³

et al. 2022

MMEP

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Optical communication systems (OCSs) have become increasingly important in recent decades because these systems provide high-speed, reasonable cost connectivity. One of the most important parts of OCSs is their optical source, where the laser diode (LD) is the most widely used source type. The devices used to settle and control the laser diode temperature are vital to the operation of OCSs. This paper proposes an efficient controlled cooling system for optical communication LDs using a thermoelectric cooler controlled by an Arduino Uno microcontroller. To accomplish precise and fast control of LD temperature, a proportional integral derivatives algorithm is used. The control program was run on the Arduino Uno board. Analysis of the proposed system model was first performed using a simulation in MATLAB. Robust results were obtained, showing that the LD temperature decreased from 70°C to 25°C in 170 seconds with stable system performance across 6,000 seconds of operation. A second analysis was conducted by constructing the proposed controlled cooling system and implementing real-time testing of its performance. The real-time implementation shows that the proposed system decreases the LD temperature from 71°C to the setpoint temperature (25°C) in 176 seconds. This finding shows a fast, smooth system response with only negligible overshooting and demonstrates the stability of the system performance across 6,000 seconds of testing.

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A review of semiconductor lasers for optical communications

Cited by 15 publications

References 21 publications

Mid-wave and long-wave infrared transmitters and detectors for optical satellite communications—a review

Mid-wave and long-wave infrared transmitters and detectors for optical satellite communications—a review

Lasers in Passive Optical Networks and the Activation Process of an End Unit: A Tutorial

Design and Experimental Study of an Efficient Controlled Cooling System for Optical Communication Laser Diodes

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