Search Results - "Fetterman, H. R."

Electrooptic polymer modulators with an inverted-rib waveguide structure by Seong-Ku Kim, Zhang, H., Chang, D.H., Zhang, C., Wang, C., Steier, W.H., Fetterman, H.R.

“…Polymeric APC-CPW electrooptic modulators incorporating an inverted-rib waveguide structure were fabricated and tested for the first time. The inverted…”
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39-GHz optoelectronic oscillator using broad-band polymer electrooptic modulator by Chang, D.H., Fetterman, H.R., Erlig, H., Zhang, H., Oh, A.C., Zhang, C., Steier, W.H.

“…An optoelectronic oscillator (OEO) producing a 39-GHz microwave signal has been demonstrated using a novel electrode-poled push-pull polymer modulator. This is…”
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Optical device design with arbitrary output intensity as a function of input Voltage by Fetterman, M.R., Fetterman, H.R.

“…We show that the designs for optical digital signal processing can be used to construct a device that gives an arbitrary function I(V), where I is the output…”
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Time stretching of 102-GHz millimeter waves using novel 1.55 μm polymer electrooptic modulator by Chang, D.H., Erlig, H., Oh, M.C., Zhang, C., Steier, W.H., Dalton, L.R., Fetterman, H.R.

“…Millimeter (MM)-wave signals at frequencies up to 102 GHz have been time stretched down to 11 GHz using a new wide-band traveling-wave polymer modulator. This…”
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Characterization of ultrafast devices using near-field optical heterodyning by Ali, M.E., Geary, K., Fetterman, H.R., Han, S.K., Kang, K.Y.

“…We demonstrate a novel technique for highly localized injection of millimeter waves in ultrafast devices that combines optical heterodyning and near-field…”
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Optical mixing with difference frequencies to 552 GHz in ultrafast high electron mobility transistors by Ali, M.E., Ramesh, K.S., Fetterman, H.R., Matloubian, M., Boll, G.

“…The technology of optical mixing in three-terminal devices has been extended, for the first time, to submillimeter-wave frequencies. Using a new generation of…”
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60 GHz sources using optically driven heterojunction bipolar transistors by SCOTT, D. C, PLANT, D. V, FETTERMAN, H. R

“…Millimeter wave sources at 60 GHz have been demonstrated using optically driven heterojunction bipolar transistors configured as photodetectors. Two techniques…”
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Recent advances in electrooptic polymer modulators incorporating highly nonlinear chromophore by Min-Cheol Oh, Hua Zhang, Cheng Zhang, Erlig, H., Yian Chang, Tsap, B., Chang, D., Szep, A., Steier, W.H., Fetterman, H.R., Dalton, L.R.

“…Based on a nonlinear optical polymer with a highly nonlinear chromophore (CLD) dispersed in an amorphous polycarbonate (APC), we have developed electrooptic…”
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60 GHz board-to-board optical interconnection using polymer optical buses in conjunction with microprism couplers by CHEN, R. T, LU, H, ROBINSON, D, SUN, Z, JANNSON, T, PLANT, D. V, FETTERMAN, H. R

“…We have demonstrated for the first time 60 GHz wide-band board-to-board optical interconnection with a signal-to-noise ratio of 22 dB. The total…”
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Optical mixing to 211 GHz using 50 nm gate pseudomorphic high electron mobility transistors by Ali, M. E., Bhattacharya, D., Fetterman, H. R., Matloubian, M.

“…We report optical mixing with difference frequencies to 211 GHz in 50 nm gate pseudomorphic InP-based high electron mobility transistors (HEMTs). To our…”
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Double step-edge weak links integrated with spiral antenna structure in epitaxial Tl2CaBa2Cu2O8 films for millimeter wave mixing by HONG, J. P, FETTERMAN, H. R, FORSE, R. J, CARDONA, A. H

“…High-temperature superconducting mixers have been fabricated from epitaxial films of Tl2CaBa2Cu2O8 utilizing surface double step-edge junctions on LaAlO3…”
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Integration of polyimide waveguides with traveling-wave phototransistors by Prakash, D.P., Scott, D.C., Fetterman, H.R., Matloubian, M., Du, Q., Wang, W.

“…Polymer waveguides with low optical losses are becoming increasingly important for photonic circuits. Among these, polyimide waveguides have properties which…”
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Microwave phase conjugation in a liquid suspension of elongated microparticles by SHIH, R, FETTERMAN, H. R, HO, W. W, MCGRAW, R, ROGOVIN, D, BOBBS, B

“…Microwave phase conjugation was observed in a liquid suspension of elongated microparticles via degenerate four-wave mixing in a collinear waveguide geometry…”
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Application of near-field optical-fiber probes to millimeter-wave optical heterodyne by Seok Kil Han, Ali, M.E., Sang-Dong Jung, Kwang-Yong Kang, Fetterman, H.R.

“…We demonstrate the use of near-field fiber-optic probes in optical heterodyne characterization of high-speed devices. The submicrometer-size optical beam…”
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Nonlinear microwave optics in liquid suspensions of shaped microparticles by Rogovin, D., McGraw, R., Ho, W., Shih, R., Fetterman, H.R., Bobbs, B.

“…The use of shaped microparticle suspension for such active processes as phase conjugate via degenerate four-wave mixing at microwave and millimeter wavelengths…”
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Metal-defined polymeric variable optical attenuator by SeongKu Kim, Yu-Chueh Hung, Geary, K., Wei Yuan, Fetterman, H.R., Jin, D., Dinu, R., Steier, W.H.

“…A variable optical attenuator (VOA) based on a metal-defined polymeric optical waveguide has been demonstrated for the first time. The metal film stressor…”
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Optically tuned propagation delay in Y-Ba-Cu-O superconducting delay lines by Shinho Cho, Fetterman, H.R.

“…An optoelectronic technique was used to study the optical tuning of electrical picosecond pulses propagation in YBa/sub 2/Cu/sub 3/O/sub 7-x/ superconducting…”
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Optical mixing in epitaxial lift-off pseudomorphic HEMTs by Bhattacharya, D., Bal, P.S., Fetterman, H.R., Streit, D.

“…We present optical mixing in epitaxial lift-off (ELO) pseudomorphic HEMTs (PHEMTs) at difference frequencies in the microwave regime up to 22 GHz. The 3 μm…”
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An analytic model for HEMT's using new velocity-field dependence by Chian-Sern Chang, Fetterman, H.R.

“…An analytic model is developed for the output current-voltage characteristics and microwave-signal parameters of high electron mobility transistors (HEMT's)…”
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Laser-fabricated delay lines in GaAs for optically steered phased-array radar by Eldada, L., Scarmozzino, R., Osgood, R.M., Scott, D.C., Chang, Y., Fetterman, H.R.

“…We have used laser direct fabrication techniques to implement optical delay lines on an epitaxial GaAs/AlGaAs substrate. These integrated photonic circuits,…”
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