Download or read book High coherent power Two dimensional Grating Surface emitting GSE Semiconductor Lasers written by Shuang Li and published by . This book was released on 2006 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fabrication Issues and Considerations for High Performance Grating Surface Emitting Semiconductor Lasers written by G. A. Evans and published by . This book was released on 1992 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: A sketch of a grating-surface-emitting (GSE) laser is shown. The gratings between the gain sections provide feedback for laser oscillation in second order and couple out the laser radiation perpendicular to the surface in both directions in first order. With proper choice of grating parameters, a portion of the light is passed completely through each grating section and serves to injection lock additional gain sections in the longitudinal direction. GSE laser array technology has experienced steady progress over the last two years. Improvements in material quality and uniformity have made it possible to coherently couple two dimensional GSE lasers over distances larger than 1 cm. Figure 2a shows a peak output of 32 W per surface with differential quantum efficiencies of 40 % per surface during pulsed operation. The same device provides a continuous power output of 3.4 W per surface, as shown in Fig. 2b. Variations on the basic GSE laser concept have resulted in Master Oscillator Power Amplifier (MOPA) GSE arrays and continuous grating (CG)-GSE laser arrays. GSE arrays with 10 elements per gain section and 20 gain sections have obtained cw threshold current densities of under 140 A/cm2 with cw differential quantum efficiencies of 20 to 30% per surface. Linewidths in the 40 to 100 MHz range have been obtained with output powers of 100 to 250 mW/surface.

Download or read book Conference on Lasers and Electro optics written by Optical Society of America and published by Institute of Electrical & Electronics Engineers(IEEE). This book was released on 1991 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monolithic Diode Laser Arrays written by Nils W. Carlson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although semiconductor-diode lasers are the most compact, highest gain and most efficient laser sources, difficulties remain in developing structures that will produce high-quality, diffraction-limited output beams. Indeed, only a few designs have emerged with the potential for producing high-power, high-brightness monolithic sources. This book presents and analyzes the results of work performed over the past two decades in the development of such diode-laser arrays.

Download or read book Surface Emitting Semiconductor Lasers and Arrays written by Gary A. Evans and published by . This book was released on 1993 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reviews all the basic types of surface emitting semiconductor lasers, including vertical cavity, etched-mirror integrated beam deflectors and grating out-coupled devices. The book also addresses such topics as edge-emitting arrays, thermal management and coherence.

Download or read book Summaries of Papers Presented at the Conference on Lasers and Electro optics written by and published by . This book was released on 1991 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Electro Conference Record written by and published by . This book was released on 1989 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High power Single Spatial Mode AlGaAs Channeled substrate planar Semiconductor Diode Lasers for Spaceborne Communications written by J. C. Connolly and published by . This book was released on 1989 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Conference Proceedings written by and published by . This book was released on 1992 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Power Laser Diodes and Applications written by Luis Figueroa and published by . This book was released on 1988 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Semiconductor Lasers and Laser Dynamics written by and published by . This book was released on 2004 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1993 with total page 938 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Semiconductor Optoelectronic Devices for Lightwave Communication written by Joachim Piprek and published by SPIE-International Society for Optical Engineering. This book was released on 2003 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Novel In plane Semiconductor Lasers III written by Claire F. Gmachl and published by SPIE-International Society for Optical Engineering. This book was released on 2004 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of SPIE present the original research papers presented at SPIE conferences and other high-quality conferences in the broad-ranging fields of optics and photonics. These books provide prompt access to the latest innovations in research and technology in their respective fields. Proceedings of SPIE are among the most cited references in patent literature.