Zobrazeno 1 - 10
of 133
pro vyhledávání: '"Leslie A. Kolodziejski"'
Autor:
Emir Salih Magden, Nanxi Li, Manan Raval, Christopher V. Poulton, Alfonso Ruocco, Neetesh Singh, Diedrik Vermeulen, Erich P. Ippen, Leslie A. Kolodziejski, Michael R. Watts
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-10 (2018)
Optical filters are an integral part of many optical devices and circuits. Here, Magden et al. use a design based on mode evolution to demonstrate CMOS-compatible dichroic filters with more than an octave bandwidth, sharp roll-off and transmissive sh
Externí odkaz:
https://doaj.org/article/1fa5972a0747492582efc92422416b12
Autor:
Alfonso Ruocco, Jonathan D. B. Bradley, Leslie A. Kolodziejski, Neetesh Singh, Nanxi Li, Erich P. Ippen, Patrick T. Callahan, Emir Salih Magden, Michael R. Watts
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 24:1-10
Many spectroscopic techniques today rely on time-resolved measurements under short excitation pulses. Instead of using a chopped pump excitation, or ultrafast optical pulses, we expand on and apply the previously developed set of frequency domain met
Autor:
Katia Shtyrkova, Alfonso Ruocco, Gerald Leake, Leslie A. Kolodziejski, Diedrik Vermeulen, Patrick T. Callahan, Erich P. Ippen, Franz X. Kärtner, Michael R. Watts, Neetesh Singh, Jonathan D. B. Bradley, Ming Xin, Nanxi Li, Emir Salih Magden, Douglas D. Coolbaugh
Publikováno v:
Conference on Lasers and Electro-Optics.
The spontaneous emission lifetime in Al 2 O 3 :Tm3+ waveguides is measured to be 568 ± 48 μs, using a frequency-domain method. The method is studied and verified in Er3+-doped silica fiber, yielding a measured lifetime of 9.73 ± 0.08 ms.
Autor:
Alfonso Ruocco, Leslie A. Kolodziejski, Neetesh Singh, Gerald Leake, Diedrik Vermeulen, Michael R. Watts, Douglas D. Coolbaugh, Nanxi Li, Christopher V. Poulton, Emir Salih Magden
Publikováno v:
OFC
Scopus-Elsevier
Scopus-Elsevier
We demonstrate integrated, mode-evolution-based, 1×2 port high-pass/low-pass filters in a silicon photonics platform that can simultaneously achieve broadband operation, single cutoff wavelength, and a record high filter roll-off of 2.5 dB/nm for th
Publikováno v:
IEEE Journal of Quantum Electronics. 49:731-738
A model of the thermal oxidation kinetics that is based on the continuity equation is adapted to the fabrication of circular saturable Bragg reflector (SBR) mesa structures, as well as inverted mesa array structures. A comparison between theoretical
Autor:
Leslie A. Kolodziejski, Jonathan D. B. Bradley, Douglas D. Coolbaugh, Michael R. Watts, Gerald Leake, Michael Y. Peng, Franz X. Kärtner, Emir Salih Magden
Publikováno v:
Conference on Lasers and Electro-Optics.
We demonstrate frequency stabilization of a continuous-wave laser using an integrated TiO 2 athermal cavity as a reference for the first time, and show linewidth improvement by a factor of 6 compared to a SiN cavity.
Publikováno v:
Photonics and Nanostructures - Fundamentals and Applications. 3:10-18
The “superprism effect” is an effect observed in photonic crystal structures whereby the direction of light propagation is extremely sensitive to the wavelength and angle of incidence. To realize the superprism effect, new structures are presente
Autor:
Juliet T. Gopinath, Leslie A. Kolodziejski, Erich P. Ippen, S. N. Tandon, Gale S. Petrich, A.A. Erchak
Publikováno v:
Journal of Electronic Materials. 33:774-779
The wet oxidation of AlAs and AlGaAs has been limited to relatively small lateral dimensions and relatively thin layers. Approaches are described to extend the oxide dimensions both horizontally and vertically, creating large-area and thick buried ox
Autor:
Hideyuki Sotobayashi, E.M. Koontz, Leslie A. Kolodziejski, Juliet T. Gopinath, Erich P. Ippen
Publikováno v:
Optics Communications. 237:399-403
The broadband gain of bismuth oxide-based erbium-doped fiber has been used to obtain wavelength-tunable mode-locking over a 30 nm range from 1570 to 1600 nm. Passive mode-locking using a proton-bombarded semiconductor saturable absorber mirror produc
Oxidized GaAs/AlAs mirror with a quantum-well saturable absorber for ultrashort-pulse Cr4+:YAG laser
Autor:
A.A. Erchak, Gale S. Petrich, Leslie A. Kolodziejski, Juliet T. Gopinath, Daniel J. Ripin, Franz X. Kärtner, Erich P. Ippen, H.M. Shen
Publikováno v:
Optics Communications. 214:285-289
Ultra-broadband saturable Bragg reflectors consisting of a 7-period GaAs/Al x O y Bragg mirror and an InGaAs/InP quantum well were studied and used to start modelocking of 36 fs pulses near 1500 nm in a dispersion compensated Cr 4+ :YAG laser. The mi