Search Results - (Author, Cooperation:A. E. Willner)
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1Latest Papers from Table of Contents or Articles in PressA. E. Willner ; J. Wang ; H. Huang
American Association for the Advancement of Science (AAAS)
Published 2012Staff ViewPublication Date: 2012-08-11Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
2Latest Papers from Table of Contents or Articles in PressN. Bozinovic ; Y. Yue ; Y. Ren ; M. Tur ; P. Kristensen ; H. Huang ; A. E. Willner ; S. Ramachandran
American Association for the Advancement of Science (AAAS)
Published 2013Staff ViewPublication Date: 2013-07-03Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
3Articles: DFG German National LicensesWillner, A. E. ; Ruberto, M. N. ; Blumenthal, D. J. ; Podlesnik, D. V. ; Osgood, R. M.
Woodbury, NY : American Institute of Physics (AIP)
Published 1989Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: We have applied the technique of laser-induced etching to fabricate rib waveguides on a GaAs/AlGaAs heterostructure system. Light confinement of these guides was controlled by varying the depth of the etched trenches. Additionally, we have demonstrated directional couplers and two-level waveguides using the in situ depth control of this single-step process.Type of Medium: Electronic ResourceURL: -
4Articles: DFG German National LicensesKuznetsov, M. ; Willner, A. E. ; Kaminow, I. P.
Woodbury, NY : American Institute of Physics (AIP)
Published 1989Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: We describe for the first time the theory of frequency modulation (FM) response in distributed feedback (DFB) lasers with two active segments. FM response is enhanced due to two-segment operation; the enhancement decreases at higher modulation frequencies and higher photon densities. Bandwidth of the response can extend to the multigigahertz range. The FM response is dramatically different in lasers operating in the red- and blue-shifted static tuning regimes. We find good agreement between the theory and our measurements of multigigahertz FM response of two-segment DFB lasers.Type of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesRuberto, M. N. ; Willner, A. E. ; Podlesnik, D. V. ; Osgood, R. M.
Woodbury, NY : American Institute of Physics (AIP)
Published 1989Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: Laser-induced photochemical etching was used to etch GaAs/AlGaAs multilayered material. In this carrier-driven process, the confinement of photogenerated holes to the alternating GaAs layers resulted in the controlled lateral etching of buried GaAs layers. An application of this etching technique to forming microcleaved laser facets is described.Type of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesWillner, A. E. ; Podlesnik, D. V. ; Gilgen, H. H. ; Osgood, R. M.
Woodbury, NY : American Institute of Physics (AIP)
Published 1988Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: We have investigated laser-assisted photochemical etching of InP in aqueous solutions without external electric fields. The process produces highly directional, high-aspect features with smooth vertical walls. Additionally, we demonstrate that the laser etching rate may be controlled externally by the application of a secondary light source.Type of Medium: Electronic ResourceURL: