نتایج جستجو برای: vertical cavity surface emitting laser vcsel

تعداد نتایج: 962263  

2016
Etienne Averlant Mustapha Tlidi Hugo Thienpont Thorsten Ackemann Krassimir Panajotov

We report the experimental observation of two-dimensional vector cavity solitons in a Vertical-Cavity Surface-Emitting Laser (VCSEL) under linearly polarized optical injection when varying optical injection linear polarization direction. The polarization of the cavity soliton is not the one of the optical injection as it acquires a distinct ellipticity. These experimental results are qualitativ...

2013
Tong Chen Bing Xu Robert Van Leeuwen Pu Zhao Jean-Francois Seurin Guoyang Xu Alexander Miglo Qing Wang Chuni Ghosh

A compact UV pulsed laser pumped by high-power two-dimensional arrays of vertical-cavity surface-emitting lasers (VCSELs) was presented. A passively Q-switched 1064-nm Nd:YAG laser was side-pumped by kW-class 808-nm VCSEL pump modules and the output pulses were frequency quadrupled to 266-nm. 10-ns, 0.68-mJ UV pulsed output was obtained at 1.33k-Hz repetition rate. The average UV power is > 0.9...

2011
Saeid Marjani Azam Marjani

In the present work, a new vertical cavity surface emitting laser (VCSEL) structure employing combined oxide layer and single defect photonic crystal index guiding layer has been investigated for L-band optical fiber application. The basic design goal was to obtain photonic crystal VCSEL (PhC VCSEL) with the high power, high slop efficiency and low threshold that operate at 1.55-1.6μm wavelengt...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده برق و کامپیوتر 1391

با استفاده از سیستمهای مخابرات نوری امکان ارسال و دریافت اطلاعات با پهنای باند وسیع فراهم میگردد. سیستم های مخابرات نوری به دو دسته ی مخابرات فیبر نوری و مخابرات نوری در فضای آزاد تقسیم م یشوند. سیستمهای مخابرات فیبر نوری، کاربرد زیادی در انتقال اطلاعات با سرعت بالا مانند اینترنت و کاربردهای چندرسانه ای و شبکه های انتقال اطلاعات برای فواصل مختلف دارند. سیستم مبتنی بر استاندارد گیگابیت اترنت، نو...

2012
M. Linnik A. Christou

The authors present the design and performance of a low threshold selectively oxidized Vertical Cavity Surface Emitting Laser (VCSEL) fabricated for operation at a wavelength of 1.55μm. The device is based on III-V quaternary semiconductor alloys and is grown by Molecular Beam Epitaxy technique. The theoretical investigation of the optical properties of the compound semiconductor alloys allows ...

2017
Erik Haglund Johan S. Gustavsson Wayne V. Sorin Jörgen Bengtsson David Fattal Åsa Haglund Michael Tan Anders Larsson

The use of a high-contrast grating (HCG) as the top mirror in a vertical-cavity surface-emitting laser (VCSEL) allows for setting the resonance wavelength by the grating parameters in a post-epitaxial growth fabrication process. Using this technique, we demonstrate electrically driven multi-wavelength VCSEL arrays at ~980 nm wavelength. The VCSELs are GaAs-based and the suspended GaAs HCGs were...

Journal: :Optics express 2009
Christopher Chase Ye Zhou Connie J Chang-Hasnain

We report on the effects of shrinking the physical size of a high index contrast grating (HCG) on a vertical cavity surface-emitting laser (VCSEL). HCGs previously had been simulated assuming infinite periodicity. Here we probe through simulation and experiment the effect of reducing the HCG to only a few periods. We experimentally realize lasing VCSELs with as few as 4 periods of HCG. By shrin...

Journal: :The Review of scientific instruments 2016
Shuo Li Lei Liu Rongzhang Chen Bryan Nelsen Xi Huang Yongfeng Lu Kevin Chen

This paper reports the development of a compact and portable actively Q-switched Nd:YAG laser and its applications in laser-induced breakdown spectroscopy (LIBS). The laser was end-pumped by a vertical-cavity surface-emitting laser (VCSEL). The cavity lases at a wavelength of 1064 nm and produced pulses of 16 ns with a maximum pulse energy of 12.9 mJ. The laser exhibits a reliable performance i...

2003
M. Linnik A. Christou

The authors present the design and performance of a low threshold selectively oxidized Vertical Cavity Surface Emitting Laser (VCSEL) fabricated for operation at a wavelength of 1.55μm. The device is based on III-V quaternary semiconductor alloys and is grown by Molecular Beam Epitaxy technique. The theoretical investigation of the optical properties of the compound semiconductor alloys allows ...

Journal: :Applied Physics B 2022

Abstract In this study, we realize the high-power output of a single-mode 894 nm vertical-cavity surface-emitting laser (VCSEL) at high temperature. The effects dimensional parameters oxide aperture and surface relief on transverse mode threshold gain VCSEL were analyzed. Through collaborative optimization relief, with 8 µm diameter 5 inner can operate temperature 365 K power 2.02 mW side-mode ...

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