M W Focht

Sort by:

Transverse mode control of vertical-cavity top-surface-emitting lasers

R. A. Morgan, G D Guth, +4 authors S Callis
IEEE Photonics Technology Letters
1993

Transverse mode characteristics and control for vertical-cavity top-surface-emitting lasers (VCSELs) are discussed. A spatial filtering concept for the control of VCSEL transverse modes that allows… (More)

Monolithically integrated semiconductor optical amplifier and electroabsorption modulator with dual-waveguide spot-size converter input

J E Johnson, L.J.-P. Ketelsen, +20 authors M. A. Alam
IEEE Journal of Selected Topics in Quantum…
2000

We have demonstrated a semiconductor optical amplifier and electroabsorption modulator monolithically integrated with a novel dual-waveguide spot-size converter at the input for low-loss coupling to… (More)

Two-dimensional matrix addressed vertical cavity top-surface emitting laser array display

R. A. Morgan, G D Guth, +7 authors M T Asom
IEEE Photonics Technology Letters
1994

We present the design, fabrication, and demonstration of a 10/spl times/10 matrix-addressed vertical-cavity top-surface-emitting laser (VCSEL) array. These arrays are batch-fabricated from full 3-in… (More)

Field-effect-transistor self-electro-optic-effect-device (FET-SEED) electrically addressed differential modulator array.

A. L. Lentine, L M Chirovsky, +8 authors T. K. Woodward
Applied optics
1994

We describe a 6 × 6 array of electrically addressed field-effect-transistor self-electro-optic-effect-device differential modulators in which each element has a single-stage amplifier to permit an… (More)

Electro-absorption modulated 1.55 /spl mu/m wavelength selectable DFB array using hybrid integration

L. J. P. Ketelsen, J E Johnson, +15 authors J. Zilko
OFC/IOOC . Technical Digest. Optical Fiber…
1999

We demonstrate for the first time an EA-modulated hybrid integrated wavelength selectable laser comprised of 1.55 /spl mu/m DFB laser array and amplifier/modulator chips fabricated using a novel… (More)

Multiwavelength DFB laser array with integrated spot size converters

L. J. P. Ketelsen, J.A. Grenko, +35 authors J. Zilko
IEEE Journal of Quantum Electronics
2000

We describe the design, fabrication, and performance of a five-element quarterwave-shifted distributed feedback laser array with monolithically integrated spot size converters intended for use as a… (More)

Stripe geometry InP/InGaAsP lasers fabricated with deuteron bombardment

B. Schwartz, M W Focht, N. K. Dutta, R. J. Nelson, P. Besomi
IEEE Transactions on Electron Devices
1984

Stripe geometry gain-guided InP/InGaAsP lasers have reproducibly been fabricated with deuteron bombardment. Good electrical isolation was observed in 250-µm-long laser chips, and CW thresholds… (More)

Ring oscillators with monolithically integrated-optical readout based on GaAs-AlGaAs FET-SEED technology

T. K. Woodward, R A Novotny, +7 authors R E Leibenguth
IEEE Electron Device Letters
1995

Ring oscillators having integrated-optical readout are realized in GaAs-AlGaAs field-effect transistor self-electro-optic-effect-device (FET-SEED) technology-a monolithic integration technology for… (More)

4/spl times/4 arrays of FET-SEED embedded control 2/spl times/1 optoelectronic switching nodes with electrical fan-out

A. L. Lentine, R A Novotny, +10 authors T. K. Woodward
IEEE Photonics Technology Letters
1994

We describe a 4 by 4 array of embedded control two input, one output optoelectronic switching nodes based on the field effect transistor self electro-optic effect device (FET-SEED) technology. The… (More)

Fabry-Perot-enhanced self-electro-optic-effect devices.

R. A. Morgan, G. Livescu, L M Chirovsky, M W Focht, R E Leibenguth
Optics letters
1992

Optically bistable symmetric self-electro-optic-effect devices that use an asymmetric Fabry-Perot resonator are demonstrated and assessed. Contrast ratios exceeding 30 for low bias levels (under 6 V)… (More)

Filter Results:

Publication Year

Publication Type

Co-author

Journals and Conferences