Wavelength demultiplexing multiple quantum well photodetector

Details Wavelength demultiplexing multiple quantum well photodetector Wavelength demultiplexing multiple quantum well photodetector

1997-04-15

1999-09-07

Bacares, Rafael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359159, 247 97, H04S 1402

Patent

active

059495618

ABSTRACT:
A wavelength demultiplexer having at least two photodetectors is disclosed. The photodetectors are arranged in sequential layers along an optical path. The photodetectors differ in bandgap, and are arranged so that the optical signal passes through relatively larger bandgap photodetectors before being received by relatively smaller bandgap detectors. Each photodetector absorbs photons within a predetermined energy range and generates a voltage as a function of the absorbed energy. The photodetectors can be used to detect, and hence demultiplex, a wavelength-division-multiplexed signal.

REFERENCES:
patent: 4301463 (1981-11-01), Burrus, Jr. et al.
patent: 5299045 (1994-03-01), Sekiguchi
patent: 5780867 (1998-07-01), Fritz
patent: 5790581 (1998-08-01), Nitta
Campbell et al., "Improved Two-Wavelength Demultiplexing InGaAsP Photodetector," IEEE J. Quantum Elect. vol. QE-16., No. 6, pp. 601-603, Jun. 1980.

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