Zobrazeno 1 - 10
of 31
pro vyhledávání: '"M. M. Downs"'
Autor:
Nicholas C. Craft, Susan J. Walker, M. M. Downs, Leo M. F. Chirovsky, L.A. D'Asaro, R. E. LaMarche, Michael Edward Prise
Publikováno v:
Applied optics. 29(14)
An optical module designed to perform cascadable optical logic using arrays of symmetric self-electrooptic effect devices (S-SEEDs) is described. The operation of an array of 7 x 3 devices with optical windows spaced by 20 microm is demonstrated incl
Autor:
Jürgen Jahns, M. M. Downs
Publikováno v:
Optics letters. 15(14)
In an earlier paper we proposed to integrate optical components on single substrates using planar fabrication techniques.1 The motivation for this proposal was to alleviate the tight alignment tolerances required to build an optical computer. An inte
Autor:
Uziel Koren, Patrick P. Iannone, G.E. Bodeep, P.D. Magill, M. M. Downs, C. Dragone, B. N. Desai, Herman M. Presby, Thomas E. Darcie, Thomas L. Koch, N.J. Frigo
Publikováno v:
IEEE Photonics Technology Letters. 6:1365-1367
We demonstrate a passive optical network (PON), based on a wavelength-division multiplexing router, with modulators (instead of lasers) at the subscriber terminals. A single, cost-shared, tunable laser is time-division multiplexed to provide bidirect
Publikováno v:
Optical Fiber Communications Conference.
Passive optical networks (PONs) have been proposed as subscriber-loop distribution systems because they require no power or processing between the central office (CO) and the optical-network units (ONUs).1 PONs have not been universally accepted, how
Autor:
P.D. Magill, C. Dragone, N.J. Frigo, Patrick P. Iannone, B. N. Desai, M. M. Downs, Herman M. Presby, Thomas E. Darcie, Thomas L. Koch, Uziel Koren
Publikováno v:
Conference on Optical Fiber Communication.
Current passive optical networks (PONs) utilize a splitter at the remote node (RN) to distribute signals from a central office (CO) to N subscribing optical network units (ONUs). Although commercially attractive for low rates [1], the bus’ optical
Publikováno v:
SPIE Proceedings.
Progress towards a free space interchip optical interconnect is described. We have fabricated an array of 36 differential optical receiver pairs in standard digital 0. 9 CMOS. The entire array occupies a square 2''lO on a side and each receiver chann
Publikováno v:
SPIE Proceedings.
We have developed two methods for thermal and mechanical stability analysis of optical mounts and components. Themethods are capable of detecting movements on the order of 1 pm. We present a description and evaluation of the two methods, along with a
Publikováno v:
Optical Society of America Annual Meeting.
We constructed an optical digital processor in which large arrays of symmetric self-electro-optic-effect (S-SEED) devices are available for use as optical logic gates. Four arrays were used, and 32 devices on each array were connected to the next arr
Autor:
Nicholas C. Craft, R. E. LaMarche, L.A. D'Asaro, Michael Edward Prise, Leo M. F. Chirovsky, M. M. Downs
Publikováno v:
Applied Optics. 30:2841
Two identical optical modules were used to demonstrate the cascaded operation of 32-element arrays of symmetric self-electro-optic effect devices. The devices had 5 microm x 10 microm optical windows spaced on a square grid with a 20-microm spacing.
Autor:
L.A. D'Asaro, Miles J. Murdocca, M. M. Downs, Michael Edward Prise, Nicholas C. Craft, Leo M. F. Chirovsky, R. E. LaMarche
Publikováno v:
Applied Optics. 30:2287
Four arrays of thirty-two GaAs symmetric self-electrooptic effect devices were optically interconnected to form a looped-pipeline optical digital processor. Several circuits were demonstrated, including two shift registers and a decoder circuit. Cloc