Design and Development of a Novel Tunable Erbium-doped Fiber Laser PDF Download
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Author: Mohammed Alfayturi S.Howieg
Publisher:
ISBN:
Category : Erbium
Languages : en
Pages : 214
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Book Description
Widely tunable single channel fiber lasers operating in the 1550nm wavelength region are needed as laser source for applications such as wavelength-division- multiplexed (WDM) communication systems, fiber sensors, spectroscopy, and optical fiber gyroscopes. Fiber lasers are emerging as an attractive alternative technology for wavelength-selectable WDM source for direct compatibility with fiber-optic transmission medium, excellent amplifying properties of rare-earth doped fibers, rapidly continuing progress in novel fiber gain media, maturity and robustness of the laser diode pumps used, and availability of fiber-based components. The tunable laser applications of interest in this work have distinct performance requirement, which is the need for wide tunability (the ability to tune the lasing emission through a wide range of wavelengths).
Author: Mohammed Alfayturi S.Howieg
Publisher:
ISBN:
Category : Erbium
Languages : en
Pages : 214
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Book Description
Widely tunable single channel fiber lasers operating in the 1550nm wavelength region are needed as laser source for applications such as wavelength-division- multiplexed (WDM) communication systems, fiber sensors, spectroscopy, and optical fiber gyroscopes. Fiber lasers are emerging as an attractive alternative technology for wavelength-selectable WDM source for direct compatibility with fiber-optic transmission medium, excellent amplifying properties of rare-earth doped fibers, rapidly continuing progress in novel fiber gain media, maturity and robustness of the laser diode pumps used, and availability of fiber-based components. The tunable laser applications of interest in this work have distinct performance requirement, which is the need for wide tunability (the ability to tune the lasing emission through a wide range of wavelengths).
Author: Jean-Jacques Monga Kaboko
Publisher:
ISBN:
Category : Lasers
Languages : en
Pages : 232
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Book Description
Author: Ivan Vatev
Publisher:
ISBN:
Category :
Languages : de
Pages : 70
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Book Description
Author: Mohammed Hayder Al-Mansoori
Publisher:
ISBN:
Category : Brillouin zones
Languages : en
Pages : 202
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Book Description
Multi-wavelength laser sources with constant wavelength spacing are of great interest in dense wavelength division multiplexing (DWDM) communication and sensors system. As the transmission capacity of optical communication systems is approaching a few Tb/s WDM method in recent years, multiwavelength generation technology becomes more important, considering that the complexity and the cost of the source will increase as the number od WDM channel increases. In this thesis, the design and development of a novel architecture of multi-wavelength Brilloui/Erbium fiber laser (BEFL) utilizing a linear cavity fiber loop technique is presented. Simultaneous and stable multiple wavelength lasing in a linear cavity have been achieved. The results are based completely on the experimental work. The requirement of internal feedback that is commonly used for multiple wavelengths Brillouin/Erbium fiber laser using a ring configuration is achieved by the proposed linear cavity design. This design used only a single 980 nm pump laser for its multiple wavelengths operation. Based on the design parameters namely: 980 nm pump power, Brillouin pump wavelength and single mode fiber (SMF) the performance of a novel BEFL is presented in terms of threshold power, Stokes signal peak power, number of Stokes generated , stability of the Stokes and tuningr range. Throughout this work, three lengths of SMF-fiber are used, 1.9 km, 8.8 km and 25 km. The optimization of Brillouin pump wavelength, power and Erbium gain led to a maximum possible number of Stokes. Twenty-two stable output laser lines with 10.88 GHz (0.088 nm) line spacing were obtained at 1558 nm that was the peak of Erbium-doped fiber (EDF). The injected Brillouin pump power into the 8.8 km SMF-fiber was set at 0.9 dBm and the EDF was pumped by 100 mW of 980 nm pump laser. The most efficient cascaded Brillouin Stokes operation occured at the peak of Erbium gain centered on 1558 nm. The number of Stokes decreased as the Brillouin pump increased in the highest region of Erbium gain. On the contratry, the number of Stokes was proportional to the intensity of the Brillouin pump power outside this wavelenght range. The best performance and conversion efficiency of Brillouin pump to the BEFL signal occur at the lower levels of injected Brillouin pump power. A low threshold of 4 mW pump power with 2.3 mW launched Brillouin pump into the 8.8 km of SMF-fiber at 1558 nm was obtained. The tuning range of the Stokes signal must be taken into account both the Brillouin and EDF pump power, at a fixed EDF pump power the Stokes signal can be tuned wider at a higher Brillouin pump power while higher EDF pump power produces smaller tuning range.
Author: Jon-En Wang
Publisher:
ISBN:
Category :
Languages : en
Pages : 68
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Book Description
Author: 楊禮梵
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Philippe M. Becker
Publisher: Elsevier
ISBN: 0080505848
Category : Technology & Engineering
Languages : en
Pages : 482
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Book Description
Erbium Fiber Amplifiers is a comprehensive introduction to the increasingly important topic of optical amplification. Written by three Bell Labs pioneers, the book stresses the importance of the interrelation of materials properties, optical properties, and systems aspects of optical fiber amplifiers. All disc-based content for this title is now available on the Web. Key Features* Explains the theory of noise in optically amplified systems in an intuitive way* The book contains a discussion of components used in amplifier fabrication and of the attendant technologies used in real systems* The book provides basic tools for amplifier design as well as systems engineering, including the latest developments in WDM and soliton systems* The book discusses the fundamentals of rare earth ions for the reader desiring more depth in the topic* The book is for either the novice of experienced reader* The chapter have links between them to allow the reader to understand the relationship between the amplifier characteristics, noise, and systems applications* The book contains extensive references
Author: Tarak Ali Haddud
Publisher:
ISBN:
Category : Brillouin scattering
Languages : en
Pages : 144
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Book Description
Multi-wavelength fiber lasers operating in the long-wavelength band (L-band) wavelength region are needed as laser source for applications such as wavelength-divison-multiplexed (WDM) communication systems, fiber sensors, spectroscopy and fiber optical fiber gyroscopes. Multi-wavelength fiber laser are emerging as attractive alternative technologies for wavelength-selectable WDM. They are used as source for direct compatibility with the fiber-optic transmission medium, excellent amplifying properties of rare-earth doped fibers, Brillouin gain, rapidly contiuing progress in novel fiber gain media, maturity and robustness of the laser diode pumps used and availability of fiber-based components. The multi-wavelength laser applications of interest to this work have distinct performance requirement. This requirement is the need for wide tunability (the ability to tune the lasing emissio through a wide range of wavelength). In this thesis, the design and development of a multi channel continous wave Brillouin/Erbium L-band fiber laser (BEFL), with a novel loop mirror configurations, has been studied experimentally. The design parameters of multi-wavelength fiber laser (launched pump powers , single mode optical fiber lengths and Brillouin wavelengths0, the multi wavelength Brillouin/erbium linear fiber laser configuration with bi-directional pumping is demonstrated. Throughout this work diffreent lengths of single mode optical fiber with various launched pump powers and Brillouin wavelengths have been examined to extract the optimum output performance of a BEFL. The performance of the BEFL is presented in terms of threshold pump power, output peak power, tuning range and the number od Stokes. This development fiber loop configuration exhibits considerably high performance. Twenty-four of Stokes with 10 nm tuning range and efficient output powers were obtained.
Author: Andrew John Gloag
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Author: Moh Yasin
Publisher: IntechOpen
ISBN: 9789535100911
Category : Technology & Engineering
Languages : en
Pages : 682
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Book Description
This book presents a comprehensive account of the recent advances and research in optical fiber technology. It covers a broad spectrum of topics in special areas of optical fiber technology. The book highlights the development of fiber lasers, optical fiber applications in medical, imaging, spectroscopy and measurement, new optical fibers and sensors. This is an essential reference for researchers working in optical fiber researches and for industrial users who need to be aware of current developments in fiber lasers, sensors and other optical fiber applications.
