[PDF] Top 20 Control of the spatial emission structure of broad-area vertical-cavity surface-emitting lasers by feedback

... number of transverse spatial structures in broad-area vertical-cavity surface-emitting lasers (VCSELs) is controlled via frequency-selective feedback ... See full document

... interpret the linear operator  s describ- ing the onset of pattern formation also as an operator of a quantum billiard ...case the operator  s contains not only the kinetic ... See full document

... When the operating temperature was decreased to below 260 K, the scarred structure will change to the double diamond ...From the emission angular distributions shown in ...to ... See full document

... spot emission pattern with a spatial separation of about 22 ␮ m ...apart. The corresponding emission spectra of these two spots are shown in ...3共c兲. The wavelength ... See full document

... divergent emission in wide-aperture VCSELs, the polarization direction is determined by the properties of the DBRs and (close to threshold) by the transverse ... See full document

... depicts the setup for obtaining the laser emission mode pattern and the ...spectrum. The oxide- confined VCSEL was placed on a piezoelectric transducer (PZT) ...stage. The laser ... See full document

... VCSELs, spatial hole burning 1.INTRODUCTION Vertical cavity surface emitting lasers are revolutionizing the semiconductor laser ...industry. The surface ... See full document

... In the range of 220 K and 260 K, the transverse patterns of the lasing modes generally exhibit a feature of the quasi-periodic linear ridges, and the polarization ... See full document

... RT. The optically pumped laser has a threshold energy of 55 nJ and a high degree of polarization of ...89%. The high spontaneous emission coupling factor of 6 × 10 −2 is ... See full document

... understand the observed transverse patterns, it is helpful to simplify the VCSEL structure ...consider the large aperture VCSEL to be a very narrow square-shaped three-dimensional resonator ... See full document

... Experiment: The schematic diagram of the VCSEL structure is shown in ...1. The epitaxial structure was grown by metal organic chemical vapour deposition (MOCVD) on a ... See full document

... analyzed the fabrication and development of GaN-based VCSELs from optical pumping to electrical ...DBR by insertion of SL layers and using the high reflective Ta 2 O 5 /SiO 2 as ... See full document

... (SMSR) of over 24 dB is demonstrated for the 780 nm holey ...Experiments The schematic of the device structure is shown in Figure ...1. The eight-leaf holey ... See full document

... perhaps the occur- rence of instabilities and symmetry breaking. In lasers, the y- junction structured pattern observed so far was in the interferogram of optical ...14,15) ... See full document

... comprises the computation of semiconductor transport equations, the optical gain and mode, the quantum well band structure, was employed to model above mentioned VCSEL ...designs. ... See full document

... developments of III-nitride semiconductors are rapidly increased due to their promising potential for practical light emitting diodes and laser diodes ...full-color emission in the visible ... See full document

... 2007 The Electrochemical ...2007. Vertical-cavity surface-emitting lasers 共VCSELs兲 have attracted much attention in recent ...distributed feedback lasers because ... See full document

... Using selective deposition of germanium coating by lift-off process, we could spatially control the threshold gain condition of the VCSEL to support the single transverse mode.. The thre[r] ... See full document

... that the positions of the experimental peaks for the short-range periodic orbits, (L/a) < ...with the theoretical analysis. The short-range periodic orbits are associated with ... See full document

... adopt the high-order LG mode in our simulations under the assumptions of a parabolic refractive- index profile and a ring-shaped carrier ...distribution. The ideal VCSEL structure ... See full document