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Hybrid semiconductor fiber lasers fo...

Khalili, Alireza.

Hybrid semiconductor fiber lasers for telecommunications.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Hybrid semiconductor fiber lasers for telecommunications.
作者:	Khalili, Alireza.
面頁冊數:	108 p.
附註:	Adviser: James S. Harris, Jr.
附註:	Source: Dissertation Abstracts International, Volume: 67-09, Section: B, page: 5283.
Contained By:	Dissertation Abstracts International67-09B.
標題:	Engineering, Electronics and Electrical.
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3235254
ISBN:	9780542894725

Hybrid semiconductor fiber lasers for telecommunications.
Khalili, Alireza.

Hybrid semiconductor fiber lasers for telecommunications. - 108 p.

Adviser: James S. Harris, Jr.

Thesis (Ph.D.)--Stanford University, 2006.

Highly stable edge emitting semiconductor lasers are of utmost importance in most telecommunications applications where high-speed data transmission sets strict limits on the purity of the laser signal. Unfortunately, most edge emitting semiconductor lasers, unlike gaseous or solid-state laser sources, operate with many closely spaced axial modes, which accounts for the observed instability and large spikes in the output spectrum of such lasers. Consequently, in most telecom applications distributed feedback (DFB) or distributed Bragg reflector (DBR) techniques are used to ensure stability and single-frequency operation, further adding to the cost and complexity of such lasers. Additionally, coupling of the highly elliptical output beam of these lasers to singlemode fibers complicates the packaging procedure and sub-micron alignment of various optical components is often necessary.

ISBN: 9780542894725Subjects--Topical Terms:

226981
Engineering, Electronics and Electrical.

Hybrid semiconductor fiber lasers for telecommunications.
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500 $a Source: Dissertation Abstracts International, Volume: 67-09, Section: B, page: 5283.
502 $a Thesis (Ph.D.)--Stanford University, 2006.
520 # $a Highly stable edge emitting semiconductor lasers are of utmost importance in most telecommunications applications where high-speed data transmission sets strict limits on the purity of the laser signal. Unfortunately, most edge emitting semiconductor lasers, unlike gaseous or solid-state laser sources, operate with many closely spaced axial modes, which accounts for the observed instability and large spikes in the output spectrum of such lasers. Consequently, in most telecom applications distributed feedback (DFB) or distributed Bragg reflector (DBR) techniques are used to ensure stability and single-frequency operation, further adding to the cost and complexity of such lasers. Additionally, coupling of the highly elliptical output beam of these lasers to singlemode fibers complicates the packaging procedure and sub-micron alignment of various optical components is often necessary.
520 # $a Utilizing the evanescent coupling between a semiconductor antiresonant reflecting optical waveguide (ARROW) and a side polished fiber, this thesis presents an alternative side-coupled laser module that eliminates the need for the cumbersome multi-component alignment processes of conventional laser packages, and creates an inherent mode selection mechanism that guarantees singlemode radiation into the fiber without any gratings. We have been able to demonstrate the first side-coupled fiber semiconductor laser in this technology, coupling more than 3mW of power at 850nm directly into a 5/125mum singlemode fiber. This mixed-cavity architecture yields a high thermal stability (&sim;0.06nm/°C), and negligible spectral spikes are observed. Theoretical background and simulation results, as well as several supplementary materials are also presented to further rationalize the experimental data. A side-coupled light-emitter and pre-amplifier are also proposed and discussed. We also study different architectures for attaining higher efficiency, higher output power, and wavelength tunability in such lasers. Finally, we discuss possible venues for integration of these side-coupled devices in a telecommunication system. Approved for publication.
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