Accession Number:

ADA346990

Title:

1:N Space Division Switches for Optical Routing, Reconfigurable Interconnections, and Time and Wavelength-Division Switching Applications

Descriptive Note:

Final technical rept. Jun 96-Sep 97

Corporate Author:

CORNELL UNIV ITHACA NY

Personal Author(s):

Report Date:

1998-05-01

Pagination or Media Count:

16.0

Abstract:

We report the first observation of two-mode intensity bistability in intracavity-coupled in-plane lasers and oxide-confined vertical-cavity surface emitting lasers VCSELs operating under room-temperature continuous wave CW conditions. These devices have been integrated in a monolithic all-optical 1xN routing switch. The VCSEL sections act as output couplers for modulation signals introduced to the main ridge-waveguide in-plane laser or the side in-plane control lasers, and the combined devices are capable of time-division multiplexing and demultiplexing operations. Hysteresis in the input-output transfer characteristics of the coupled in-plane lasers and VCSELs also leads to bistable operation over a range of bias conditions. The onoff contrast ratio is 29 dB, and there is negligible crosstalk between the output channels. These devices have a wide variety of potential applications, including logic gates and data buffers in optical switching networks.

Subject Categories:

  • Lasers and Masers
  • Electrooptical and Optoelectronic Devices

Distribution Statement:

APPROVED FOR PUBLIC RELEASE