Zobrazeno 1 - 10
of 137
pro vyhledávání: '"Leo J. Missaggia"'
Autor:
Leo J. Missaggia, Michael Nickerson, D.R. Calawa, Benedikt Schwarz, Christine A. Wang, Michael K. Connors, Daniel McNulty, Kevin Creedon, Tobias S. Mansuripur, Joseph P. Donnelly, Federico Capasso, Dominic F. Siriani
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 23:1-13
The quality of epitaxial layers in quantum cascade lasers (QCLs) has a primary impact on QCL performance, and establishing correlations between epitaxial growth and materials properties is of critical importance for continuing improvements. We presen
Autor:
Mei Chai Zheng, D.R. Calawa, Federico Capasso, Daniel McNulty, A. Akey, Leo J. Missaggia, Michael K. Connors, Benedikt Schwarz, Dominic F. Siriani, Tobias S. Mansuripur, Christine A. Wang, Joseph P. Donnelly
Publikováno v:
Journal of Crystal Growth. 464:215-220
The measured emission wavelengths of AlInAs/GaInAs/InP quantum cascade lasers (QCLs) grown by metal organic vapor phase epitaxy (MOVPE) have been reported to be ~ 0.5–1 µm longer than the designed QCL wavelength. This work clarifies the origin of
Autor:
Tobias S. Mansuripur, D.R. Calawa, Leo J. Missaggia, Michael K. Connors, Daniel McNulty, Dominic F. Siriani, Christine A. Wang, Mei Chai Zheng, Federico Capasso, Joseph P. Donnelly
Publikováno v:
Journal of Crystal Growth. 452:263-267
We report on a study of the effects of intentional thickness and doping variations on QCL performance. The measured QCL data had very similar trends to those predicted by an in-house QCL model. It was found that absolute changes to the QCL period had
Autor:
Federico Capasso, Benedikt Schwarz, Michael K. Connors, Gottfried Strasser, Tobias S. Mansuripur, Christine A. Wang, Daniel McNulty, Leo J. Missaggia
Publikováno v:
Quantum Sensing and Nano Electronics and Photonics XIV.
Bi-functional active regions, capable of light generation and detection at the same wavelength, allow a straightforward implementation of the mid-infrared quantum cascade technology for integrated photonics. Different parts of the chip can be used fo
Autor:
George W. Turner, Leo J. Missaggia, Kevin Creedon, Antonio Sanchez-Rubio, Brian G. Saar, Christine A. Wang, Michael K. Connors, William D. Herzog
Publikováno v:
Components and Packaging for Laser Systems II.
There are a number of military and commercial applications for high-power laser systems in the mid-to-long-infrared wavelength range. By virtue of their demonstrated watt-level performance and wavelength diversity, quantum cascade laser (QCL) and amp
Autor:
Frederick J. O'Donnell, Mark A. Hollis, Jason J. Plant, A. Napoleone, Leo J. Missaggia, Siva Yegnanarayanan, Douglas C. Oakley, Paul W. Juodawlkis
Publikováno v:
Conference on Lasers and Electro-Optics.
We describe design enhancements to increase the bandwidth of variable-confinement slab-coupled optical waveguide photodiodes to 30 GHz while maintaining good external responsivity (0.5 A/W), high 1-dB compression current (> 25 mA), and high linearity
Autor:
Daniel J. Ripin, A. Napoleone, Sangyoun Gee, Joseph P. Donnelly, Frederick J. O'Donnell, Leo J. Missaggia, Douglas C. Oakley, William Loh, Jonathan Klamkin, Jason J. Plant, Juliet T. Gopinath, Peter J. Delfyett, Paul W. Juodawlkis
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 17:1698-1714
We review the development of a new class of high-power, edge-emitting, semiconductor optical gain medium based on the slab-coupled optical waveguide (SCOW) concept. We restrict the scope to InP-based devices incorporating either InGaAsP or InGaAlAs q
Autor:
George W. Turner, D.R. Calawa, Frederick J. O'Donnell, S.G. Cann, Anish K. Goyal, Antonio Sanchez-Rubio, Joseph P. Donnelly, Leo J. Missaggia, Jason J. Plant, Robin K. Huang, C. A. Wang
Publikováno v:
Journal of Crystal Growth. 310:5191-5197
The growth and characterization of highly strain-balanced (SB) GaInAs/AlInAs/InP quantum-well heterostructures for mid-infrared quantum cascade lasers (QCLs) are reported. Growth conditions were established to provide a step-flow growth mode, which i
Autor:
Christine A. Wang, William D. Herzog, Antonio Sanchez-Rubio, Leo J. Missaggia, Kevin Creedon, George W. Turner, Joseph P. Donnelly, Brian G. Saar, Michael K. Connors
Publikováno v:
CLEO: 2015.
We present design, packaging and coherent beam combining of quantum cascade amplifier (QCA) arrays, measurements of QCA phase noise, the drive-current-to-optical-phase transfer function, and the small signal gain for QCAs.
Autor:
Jason J. Plant, Robert J. Bailey, James N. Walpole, C.T. Harris, William D. Goodhue, Leo J. Missaggia, George W. Turner, Robin K. Huang, Joseph P. Donnelly, D.E. Mull
Publikováno v:
IEEE Journal of Quantum Electronics. 39:289-298
The slab-coupled optical waveguide laser (SCOWL) concept, recently proposed and demonstrated, is extended to the AlGaAs-InGaAs-GaAs material system. Both 980- and 915-nm SCOWL devices feature a nearly circular large-diameter single-spatial mode that