Search Results - "Vakhshoori, D."

Complete polarization mode control of long-wavelength tunable vertical-cavity surface-emitting lasers over 65-nm tuning, up to 14-mW output power by Matsui, Y., Vakhshoori, D., Peidong Wang, Peili Chen, Chih-Cheng Lu, Min Jiang, Knopp, K., Burroughs, S., Tayebati, P.

“…We experimentally demonstrate a stable polarization mode operation in long-wavelength tunable vertical-cavity surface-emitting lasers over a 65-nm tuning range…”
Get full text

Widely tunable Fabry-Perot filter using Ga(Al)As-AlOx deformable mirrors by Tayebati, P., Wang, P.D., Vakhshoori, D., Sacks, R.N.

“…A microelectromechanically tunable Fabry-Perot (FP) microinterferometer is demonstrated using Ga(Al)As-AlO/sub x/ DBR micromirrors separated by an air gap. The…”
Get full text

Half-symmetric cavity tunable microelectromechanical VCSEL with single spatial mode by Tayebati, P., Peidong Wang, Vakhshoori, D., Chih-Cheng Lu, Azimi, M., Sacks, R.N.

“…A new class of microelectromechanically tunable vertical-cavity surface-emitting lasers with a half-symmetric cavity structure is described. The cavity is…”
Get full text

Top-surface emitting lasers with 1.9 V threshold voltage and the effect of spatial hole burning on their transverse mode operation and efficiencies by VAKHSHOORI, D, WYNN, J. D, ZYDZIK, G. J, LEIBENGUTH, R. E, ASOM, M. T, KOJIMA, K, MORGAN, R. A

“…The fabrication and operating characteristics of a 1.9 V top surface emitting laser are presented. A planar fabrication process with a modified ion…”
Get full text

Strain compensated InGaAs-GaAsP-InGaP laser by Dutta, N.K., Hobson, W.S., Vakhshoori, D., Han, H., Freeman, P.N., de Jong, J.F., Lopata, J.

“…The performance characteristics of InGaAs-GaAsP-InGaP strain compensated laser emitting near 1 μm are reported. The ridge waveguide lasers have room…”
Get full text

Blue-green surface-emitting second-harmonic generators on (111)B GaaS by VAKHSHOORI, D, FISCHER, R. J, HONG, M, SIVCO, D. L, ZYDIZIK, G. J, CHU, G. N. S, CHO, A. Y

“…Passive devices capable of generating coherent blue-green light radiated in a surface emitting geometry is realized on (111)B GaAs substrates. This substrate…”
Get full text

Experimental observation of vertical cavity with polarization birefringence using asymmetric superlattice by Vakhshoori, D., Leibenguth, R. E.

“…Vertical cavity etalons with asymmetric superlattice claddings have been fabricated. As predicted earlier, the cavities with sawtooth superlattice claddings…”
Get full text

8×18 top emitting independently addressable surface emitting laser arrays with uniform threshold current and low threshold voltage by VAKHSHOORI, D, WYNN, J. D, ZYDZIK, G. J, LEIBENGUTH, R. E

“…Fabrication of 8×18 independently addressable vertical cavity surface emitting laser arrays (VC-SELA) with uniform threshold current, threshold voltage, and…”
Get full text

Integrable semiconductor optical correlator, parametric spectrometer for communication systems by Vakhshoori, D., Wang, S.

“…A broadband integrable waveguide correlator and parametric spectrometer is analyzed both theoretically and experimentally. The correlator can measure…”
Get full text

Digital transmission link using surface emitting lasers and photoreceivers by Dutta, N. K., Nichols, D. T., Vakhshoori, D., Sivco, D. L., Cho, A. Y.

“…Transmission system experiments using surface emitting lasers (SEL) and integrated photoreceivers have been carried out. The surface emitting laser utilizes…”
Get full text

15 Gb/s multichannel optical interconnect laser array transmitter operating at λ = 1.3 μm by LEVINE, B. F, WYNN, J. D, VAKHSHOORI, D, MONTELEONE, K

Get full text

Surface-emitting second-harmonic generator for waveguide study by VAKHSHOORI, D, WU, M. C, WANG, S

“…A novel surface emission of coherently generated second-harmonic wave is reported for the first time.The technique is used for the observation of the…”
Get full text

Zone lasers by Vakhshoori, D., Hong, M., Asom, M., Leibenguth, R. E., Mannaerts, J. P., Wynn, J. D.

“…Vertical-cavity zone lasers (Z lasers) operating in 850 and 980 nm have been fabricated. This new class of high power, high efficiency, and large area…”
Get full text

Optical transmission systems employing vertical cavity surface emitting lasers and monolithically integrated photoreceivers by Nichols, D. T., Hobson, W. S., Vakhshoori, D., Wynn, J. D., Zydzik, G. J., Morgan, R. A., Dutta, N. K., Sivco, D. L., Cho, A. Y., Leibenguth, R. E.

“…We report on an optical fiber transmission system employing a vertical cavity surface emitting laser and an integrated p-i-n/metal–semiconductor field effect…”
Get full text

Integrable parametric waveguide spectrometer―a nonlinear optical device capable of resolving modes of semiconductor lasers by VAKHSHOORI, D, WALKER, J, DIJAILI, S, WANG, S, SMITH, J. S

“…In this letter we demonstrate a new kind of spectrometer capable of resolving the modes of a 1.3 μm quaternary laser diode. The device uses the nonlinear sum…”
Get full text

In-situ process for AlGaAs compound semiconductor : materials science and device fabrication by HONG, M, CHOQUETTE, K. D, MANNAERTS, J. P, GROBER, L. H, FREUND, R. S, VAKHSHOORI, D, CHU, S. N. G, LUFTMAN, H. S, WETZEL, R. C

“…Title describes article content…”
Get full text

Calculation of base-collector efficiency for hot-electron devices by Vakhshoori, D., Shyh Wang

“…In this paper a new accurate analysis of base-collector efficiency of hot-electron devices will be presented. This analysis is crucial to the estimation of…”
Get full text

Integrable optical correlator: its temporal resolution, spectral response, and power sensitivity by VAKHSHOORI, D, WALKER, J, WANG, S, SMITH, J. S, SOCCOLICH, C. E, ISLAM, M. N

“…A new class of optical correlator which is integrable and potentially compatible with semiconductor lasers is experimentally tested. The correlator proposed…”
Get full text

Symmetry considerations in vertical-cavity surface-emitting lasers: Prediction of removal of polarization isotropicity on (001) substrates by Vakhshoori, Daryoosh

“…The effects of crystalline and structural symmetry on the performance of vertical-cavity surface-emitting laser structures are studied by group theoretical…”
Get full text

Low threshold (111)B GaAs quantum well lasers and applications to coherent blue–green sources by Fischer, R. J., Vakhshoori, D.

“…We have studied the growth and properties of GaAs (111)B lasers for application to visible blue–green generators. Nearly featureless surface morphologies were…”
Get full text