Accession Number:

ADA188594

Title:

Development of a High Speed InGaAs/InP Schottky Barrier Photodetector for Millimeter-Wave Fiber Optical Links.

Descriptive Note:

Final technical rept. Dec 85-Dec 86,

Corporate Author:

FLORIDA UNIV GAINESVILLE

Personal Author(s):

• Li, Sheng S.

Report Date:

1987-07-01

Pagination or Media Count:

127.0

Abstract:

This report describes the development of long wavelength 1.3 to 1.65 micrometer Schottky barrier photodetectors in InGaAsInP. Two material overlays were investigated. These are the AuP-n- 0.43AW and a quantum efficiency of 40.5 at 1.3 micron m without an antireflection coating. The impulse response gave a rise time of 85 ps and a FWHM of 490 ps. The RC time constant measured was 34.7 ps which corresponds to a cutoff frequency of 28.8 GHz. The n-InP Schottky barrier requires more work to obtain good reproducibility of the barrier height enhancement technique employed. The work performed indicates that long wavelength, high frequency response, Schottky barrier for use as fiber optic compatible detectors are viable. Processing techniques are described along with supportive device modeling and experimental data on the initial devices. Keywords include Detectors, Optical, Fiber optics, Long wavelength, and Schottky barrier.

Descriptors:

• *DATA LINKS
• *FIBER OPTICS
• *PHOTODETECTORS
• *SCHOTTKY BARRIER DEVICES
• ANTIREFLECTION COATINGS
• DETECTORS
• EXPERIMENTAL DATA
• LONG WAVELENGTHS
• MATERIALS
• METHODOLOGY
• MILLIMETER WAVES
• OPTICS
• OVERLAYS
• PROCESSING
• PULSES
• QUANTUM EFFICIENCY
• RESPONSE
• TIME

Subject Categories:

• Fiber Optics and Integrated Optics
• Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE