TITLE

Large cavity quantum cascade lasers with InP interstacks

AUTHOR(S)
Bismuto, A.; Gresch, T.; Bächle, A.; Faist, Jérôme
PUB. DATE
December 2008
SOURCE
Applied Physics Letters;12/8/2008, Vol. 93 Issue 23, p231104
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Multicore quantum cascade lasers with large cavities show low optical losses, high saturation intensity, and low beam divergence. We present a four active core laser based on InGaAs–AlInAs material system emitting at 10.5 μm. To improve thermal conductance, InP interstacks were used to separate active regions. Selective lateral etching of the active regions was used to reduce optical losses. Peak powers up to 4.6 W, average powers up to 310 mW, and wall-plug efficiencies up to 4.6% were measured at 300 K. A far field with full width at half maximum of 18.7° and 49.8° in the lateral and in the growth direction, respectively, was observed.
ACCESSION #
35886553

 

Related Articles

  • Threshold analysis of cleaved-coupled-cavity lasers. Streifer, William; Yevick, David; Burnham, Robert D.; Paoli, Thomas L. // Applied Physics Letters;1984, Vol. 45 Issue 4, p343 

    We present results of a cleaved-coupled-cavity laser analysis which, in contrast to previous studies, incorporates all the following: (1) a model of the gain variation with pumping current and photon energy; (2) the refractive index dependence on the active region injection current; and (3)...

  • Ring laser.  // Spectroscopy;May2006, Vol. 21 Issue 5, p54 

    The article features the Matisse tunable CW ring laser. This is innovated by Newport. Accordingly, this instrument has inherent stability towards external mechanical and acoustic perturbations. It has active photonic elements and an electro-optic modulator for fast cavity-length stabilization....

  • The Nike KrF laser facility: Performance and initial target experiments. Obenschain, S. P.; Bodner, S. E.; Colombant, D.; Gerber, K.; Lehmberg, R. H.; McLean, E. A.; Mostovych, A. N.; Pronko, M. S.; Schmitt, A. J.; Pawley, C. J.; Sethian, J. D.; Serlin, V.; Stamper, J. A.; Sullivan, C. A.; Dahlburg, J. P.; Gardner, J. H.; Chan, Y.; Deniz, A. V.; Hardgrove, J.; Lehecka, T. // Physics of Plasmas;May96, Vol. 3 Issue 5, p2098 

    Krypton-fluoride ~KrF! lasers are of interest to laser fusion because they have both the large bandwidth capability ~.THz! desired for rapid beam smoothing and the short laser wavelength ~ 14mm! needed for good laser?target coupling. Nike is a recently completed 56-beam KrF laser and target...

  • Type-II Interband Cascade Lasers: From Concept to Devices. Yang, Rui Q. // AIP Conference Proceedings;2005, Vol. 772 Issue 1, p1553 

    I briefly discuss the underlying physics of type-II interband cascade lasers and review their development from concept to high performance devices. © 2005 American Institute of Physics

  • Dual-wavelength fiber laser uses low-cost double-ring configuration. Chien Hung Yeh // Laser Focus World;Dec2007, Vol. 43 Issue 12, p17 

    The article reports on the dual-wavelength fiber laser that was developed using a compound-ring architecture by researchers at the Industrial Technology Research Institute, the National Chaio Tung University, and the Yuan Ze University in Taiwan. The dual-architecture, which lases at two...

  • Ultracompact cladding-pumped 35-mm-short fiber laser with 4.7-W single-mode output power. Li, L.; Schülzgen, A.; Temyanko, V. L.; Morrell, M. M.; Sabet, S.; Li, H.; Moloney, J. V.; Peyghambarian, N. // Applied Physics Letters;4/17/2006, Vol. 88 Issue 16, p161106 

    We report on ultracompact cladding-pumped fiber lasers, fabricated from single-mode phosphate glass microstructured optical fibers, with several watts of cw output at 1.5 μm. A maximum cw output power of 4.7 W has been achieved from a fiber laser that is only 35 mm in length, corresponding to...

  • Observation of temperature-independent internal Er3+ relaxation efficiency in Si-rich SiO2 films. Savchyn, Oleksandr; Todi, Ravi M.; Coffey, Kevin R.; Kik, Pieter G. // Applied Physics Letters;6/15/2009, Vol. 94 Issue 24, p241115 

    Time-dependent photoluminescence measurements of low-temperature-annealed Er-doped Si-rich SiO2 were conducted at sample temperatures 15–300 K. The erbium internal relaxation efficiency from the second (4I11/2) to the first (4I13/2) excited state upon luminescence-center-mediated Er3+...

  • Thermal induced facet destructive feature of quantum cascade lasers. Quande Zhang; Feng-Qi Liu; Wei Zhang; Quanyong Lu; Lijun Wang; Lu Li; Zhanguo Wang // Applied Physics Letters;4/5/2010, Vol. 96 Issue 14, p141117 

    We present a study on the facet damage profile of quantum cascade lasers (QCLs). Conspicuous cascade half-loop damage strips on front facet are observed when QCLs catastrophically failed. Due to the large difference on thermal conductivities between active region and the substrate, dominant heat...

  • Electrically pumped GaN-based VCSELs emit blue and green at room temperature. Wallace, John // Laser Focus World;Sep2011, Vol. 47 Issue 9, p22 

    The article offers brief information on the indium gallium nitride/gallium nitride (InGaN/GaN)-based green and blue-emitting vertical-cavity surface emitting lasers (VCSELs) from Nichia Corp.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics