Differential charge and dump optoelectronic receiver

Details Differential charge and dump optoelectronic receiver Differential charge and dump optoelectronic receiver

1998-01-30

2000-07-18

Pascal, Leslie

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

327514, 250551, H04B 1006

Patent

active

060915315

ABSTRACT:
A differential charge and dump optoelectronic receiver for baseband digital optoelectronic data links is disclosed having a preamplifier and a voltage controlled current source that defines the tail current of a differential pair functioning as a two quadrant multiplier, and using capacitors as loads on the differential pair making said differential pair an integrator. The integrator provides a full differential output, part of which is fedback to control the gain of the preamplifier. In a preferred embodiment, one integrator pair is used to recover the data from a Manchester encoded data stream. In another preferred embodiment, two pairs of integrators are used for QPSK like codes.

REFERENCES:
patent: 5448076 (1995-09-01), Krause
patent: 5739717 (1998-04-01), Nakamura
patent: 5798520 (1998-08-01), Kuijk et al.
patent: 5949567 (1999-09-01), Jebens

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