Search Results - "GOPINATH, J. T"

Angular velocimetry for fluid flows: an optical sensor using structured light and machine learning by Strong, E F, Anderson, A Q, Brenner, M P, Heffernan, B M, Hoghooghi, N, Gopinath, J T, Rieker, G B

“…Most velocimetry approaches for fluid flows measure linear components of the velocity vector; yet, the angular velocity components, particularly at small…”
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Large-area oxidation of AlAs layers for dielectric stacks and thick buried oxides by TANDON, S. N, GOPINATH, J. T, ERCHAK, A. A, PETRICH, G. S, KOLODZIEJSKI, L. A, IPPEN, E. P

“…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…”
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Temperature and Strain Fiber Sensing Using Orbital Angular Momentum by Wootten, K., Zohrabi, M., Siemens, M. E., Gopinath, J. T.

“…We demonstrate an optical fiber sensor that uses orbital angular momentum of light to detect changes in both temperature and strain. We show that the…”
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Enhancing Imaging Performance in Electrowetting Prism Scanners through Electrode Gap Reduction by Miscles, E. J., Zohrabi, M., Gopinath, J. T., Bright, V. M.

“…A method for fabrication of electrowetting tunable prisms based on laser lithography is presented. The fabrication method is a low-cost solution for patterning…”
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Machined Aluminum Electrowetting Lens by Oroke, R., Miscles, E. J., Gilinsky, S. D., Zohrabi, M., Gopinath, J. T., Bright, V. M.

“…A tunable liquid lens is demonstrated with a machined aluminum conical cavity. Leveraging the electrowetting-on-dielectric principle, the lens shows focal…”
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Electrowetting lens for focus-tunable three-photon excitation microscopy by Gilinsky, S. D., Jung, D. N., Futia, G. L., Zohrabi, M., Welton, T. A., Gibson, E. A., Restrepo, D., Bright, V. M., Gopinath, J. T.

“…We demonstrate an electrowetting lens suitable for 3-photon microscopy using ionic liquids and 1-phenyl-1-cyclohexene. These devices are over 90% transmissive…”
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Highly nonlinear bismuth-oxide fiber for supercontinuum generation and femtosecond pulse compression by Gopinath, J.T., Shen, H.M., Sotobayashi, H., Ippen, E.P., Hasegawa, T., Nagashima, T., Sugimoto, N.

“…Highly nonlinear normally dispersive bismuth-oxide fiber shows promise for applications such as supercontinuum generation and femtosecond pulse compression in…”
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Broad-band wavelength-tunable, single frequency, and single polarization bismuth oxide-based erbium-doped fiber laser by Sotobayashi, H., Gopinath, J.T., Takushima, Y., Hsu, K., Ippen, E.P.

“…We demonstrate a broad-band wavelength-tunable Bismuth Oxide-based Erbium-doped fiber (Bi-EDF) laser covering both the conventional wavelength band and the…”
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Oxidized GaAs/AlAs mirror with a quantum-well saturable absorber for ultrashort-pulse Cr4+:YAG laser by RIPIN, D. J, GOPINATH, J. T, SHEN, H. M, ERCHAK, A. A, PETRICH, G. S, KOLODZIEJSKI, L. A, KÄRTNER, F. X, IPPEN, E. P

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High-Power, Low-Noise 1.5-μm Slab-Coupled Optical Waveguide (SCOW) Emitters: Physics, Devices, and Applications by Juodawlkis, P. W., Plant, J. J., Loh, W., Missaggia, L. J., O'Donnell, F. J., Oakley, D. C., Napoleone, A., Klamkin, J., Gopinath, J. T., Ripin, D. J., Gee, S., Delfyett, P. J., Donnelly, J. P.

“…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)…”
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Fiber optic sensors based on orbital angular momentum by Niederriter, R. D., Siemens, M. E., Gopinath, J. T.

“…Fiber optic sensors based on orbital angular momentum (OAM) have unexplored potential. We propose a design for an OAM-based fiber sensor and analyze its…”
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Silicon-germanium saturable absorber mirrors by Grawert, F.J., Akiyama, S., Gopinath, J.T., Ilday, F.O., Liu, J., Shen, H., Wada, K., Kimerling, L.C., Ippen, E.P., Kaertner, F.X.

“…A silicon-germanium ultra-broadband saturable Bragg reflector with sub-picosecond recovery time is fabricated. Its performance is demonstrated by mode-locking…”
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980-nm Monolithic Passively Mode-Locked Diode Lasers With 62 pJ of Pulse Energy by Gopinath, J.T., Chann, B., Huang, R.K., Harris, C., Plant, J.J., Missaggia, L., Donnelly, J.P., Juodawlkis, P.W., Ripin, D.J.

“…Passively mode-locked 980-nm slab-coupled optical waveguide lasers have been demonstrated with pulse energies as high as 62 pJ and average powers of 489 mW at…”
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Automatic feedback control of an Er-doped fiber laser with an intracavity loss modulator by Grawert, F.J., Ilay, F.O., Kielpinski, D., Gopinath, J.T., Petrich, G.S., Kolodziejski, L.A., Ippen, E.P., Kartner, F.X.

“…Saturable absorber mode-locking of an Er-doped fiber laser is achieved over the entire parameter range with automatic gain control and active feedback…”
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Self-organization of harmonic pulses in a passively modelocked stretched pulse erbium fiber ring laser by Abedin, K.S., Gopinath, J.T., Jiang, L.A., Grein, M.E., Haus, H.A., Ippen, E.P.

“…In summary, we have reported self-stabilization in a harmonic passively modelocked stretched pulse fiber laser. With no active modulation or optical feedback,…”
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Highly nondegenerate femtosecond four-wave mixing in tapered microstructure fiber by Abedin, Kazi S., Gopinath, Juliet T., Ippen, Erich P., Kerbage, Charles E., Windeler, Robert S., Eggleton, Benjamin J.

“…We demonstrate efficient, highly nondegenerate four-wave mixing of femtosecond pulses, with a frequency shift of ∼6000 cm−1, in an 18 cm tapered microstructure…”
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Wavelength tunable passively mode-locked bismuth oxide-based erbium-doped fiber laser by Sotobayashi, Hideyuki, Gopinath, Juliet T, Koontz, Elisabeth M, Kolodziejski, Leslie A, Ippen, Erich P

“…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…”
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Recovery dynamics in proton-bombarded semiconductor saturable absorber mirrors by Gopinath, Juliet T., Thoen, Erik R., Koontz, Elisabeth M., Grein, Matthew E., Kolodziejski, Leslie A., Ippen, Erich P., Donnelly, Joseph P.

“…Reduction of device response time, resulting from the proton bombardment of InGaAs/InP-based semiconductor saturable absorbers, was studied experimentally…”
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Cryogenically cooled solid-state lasers: Recent developments and future prospects by Fan, T.Y., Ripin, D.J., Hybl, J.D., Gopinath, J.T., Goyal, A.K., Rand, D.A., Augst, S.J., Ochoa, J.R.

“…The properties of solid-state laser materials at cryogenic temperature are attractive for high-power operation and efficiency. In recent experiments, the power…”
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Si/Ge Semiconductor Saturable Bragg Reflectors for Integrated Mode-Locked Lasers by Kartner, F.X., Byun, H., Grawert, F.J., Gopinath, J.T., Shena, H.M., Ippen, E.P., Akiyama, S., Liu, J., Wada, K., Kimerling, L.C.

“…Silicon-germanium saturable absorber mirrors at 1550 nm are demonstrated. The device is used to achieve stable, continuously mode-locked operation of an…”
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