Zobrazeno 1 - 10
of 119
pro vyhledávání: '"Gregory A. Vawter"'
Publikováno v:
IEEE Journal of Quantum Electronics. 47:300-305
The modulation response (MR) improvement in mutually injection-locked semiconductor lasers is analyzed. We show that the system becomes increasingly sensitive to the modulation when its operation point approaches the lock band boundary, suggesting th
Publikováno v:
IEEE Journal of Quantum Electronics. 40:989-995
This paper uses a nonequilibrium semiconductor laser model to investigate high-modulation bandwidth operation in semiconductor lasers. In particular, limitations to /spl gsim/100GHz modulation response, which approaches the carrier-phonon scattering
Autor:
C. Alford, Gregory A. Vawter, Mark E. Overberg, Florante Cajas, Erik J. Skogen, Anna Tauke-Pedretti, G.M. Peake, Weng W. Chow, D. Torres, Zhenshan S. Yang
Publikováno v:
IEEE Photonics Technology Letters. 23:908-910
We present a photonic integrated circuit (PIC) composed of two strongly coupled distributed Bragg reflector (DBR) lasers. This PIC utilizes the dynamics of mutual injection locking to increase the relaxation resonance frequency from 3 GHz to beyond 3
Autor:
Gregory A. Vawter, Pierre R. Villeneuve, Steven G. Johnson, A. Alleman, Edmond Chow, Hong Q. Hou, John D. Joannopoulos, Joel R. Wendt, Walter J. Zubrzycki, Shawn-Yu Lin
Publikováno v:
Nature. 407:983-986
Optoelectronic devices are increasingly important in communication and information technology. To achieve the necessary manipulation of light (which carries information in optoelectronic devices), considerable efforts are directed at the development
Publikováno v:
IEEE Photonics Technology Letters. 21:839-841
Modulation response in injection-locked lasers is investigated with optical isolation between master and slave lasers removed. A strong-coupling theory shows that recently demonstrated modulation response enhancement can be maintained in a significan
Autor:
Gregory A. Vawter, T.J. Drummond, M.J. Hafich, R.D. Briggs, Mark B. H. Breese, H. Schöne, I. J. Fritz, S.A. Casalnuovo, Barney Lee Doyle, Stephen R. Lee
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 130:551-556
This paper presents ion beam induced charge collection (IBICC) contrast images showing regions of differing charge collection efficiency within optoelectronic modulator devices. The experiments were carried out at the Sandia nuclear microprobe using
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 3:1361-1371
Design details and demonstration data are presented for an (Al,Ga)As monolithic tapered rib waveguide achieving modal spot-size transformation. The tapered rib adiabatic following fiber coupler structure (TRAFFIC) achieves two-dimensional (2-D) expan
Autor:
D. Torres, Gregory A. Vawter, C. Alford, Mark E. Overberg, G.M. Peake, Erik J. Skogen, Anna Tauke-Pedretti, Florante Cajas
Publikováno v:
Optoelectronic Integrated Circuits XV.
Optical channelizing filters with narrow linewidth are of interest for optical processing of microwave signals. Fabrication tolerances make it difficult to place exactly the optical resonance frequency within the microwave spectrum as is required for
Publikováno v:
Thin Solid Films. :508-512
Optical modulators operating at near-infrared wavelengths are of interest for a variety of applications including bidirectional communications and optical interconnects. The fabrication of 1.06 {micro}m and 1.32 {micro}m operating wavelength strained