US 2006/0078253 A1 · Optical signal retiming, reshaping, and reamplifying (3R) regeneration system having monolithically integrated Mach Zehnder interferometer and self-pulsating laser diode

Abstract

The 3R regeneration system for a retiming, reshaping, and reamplifying an optical signal includes: first and second input ports in which a connected optical signal is input; an interferometer including first and second branches formed on a substrate, split at a common input node, combined at a common output node, semiconductor optical amplifiers in each of the first and second branches, the first branch being connected to the first input port, and the common input node being connected to the second input port; a self-pulsating laser diode monolithically integrated with the interferometer between one of the first input port and the first branch, and the second input port and the common input node on the substrate, receiving an optical signal, and outputting the optical signal regenerated by optical injection locking; and an output port connected to the common output node.

Claims20

Dependent claims

A monolithically integrated 3R regeneration system comprising:

a first input port receiving a first split optical signal;
a second input port receiving a second split optical signal;
a first self-pulsating laser diode (SP1) receiving either one of the first and second split optical signals and outputting a first regenerated clock signal;
an interferometer monolithically integrated with the SP1, the interferometer receiving the first regenerated clock signal and either one of the first and second split optical signals and generating and producing a reshaped and reamplified output optical signal as a 3R regenerated optical signal;
and
an output port outputting the 3R regenerated optical signal.

3 more elements

A monolithically integrated 3R regeneration system comprising:

a input port receiving an input optical signal;
an interferometer comprising:
a first semiconductor optical amplifier (SOA1) receiving a split portion of the input optical signal, shaping and amplifying the received signal, and outputting it as a first output signal;
a second semiconductor optical amplifier (SOA2) receiving another split portion of the input optical signal, shaping and amplifying the received signal, and outputting it as a second output signal:
a self-pulsating laser diode (SP) monolithically integrated with the interferometer, receiving the first output signal, and outputting a regenerated clock signal produced by optical injection locking back to the SOA1;
a second output port outputting a 3R regenerated signal received from SOA1, wherein the 3R regenerated signal is produced by combing the regenerated clock signal and the first output signal.

3 more elements

A monolithically integrated 3R regeneration system comprising:

an input port receiving an input optical signal;
an interferometer comprising:
a first semiconductor optical amplifier (SOA1) receiving a split portion of the input optical signal, amplifying the received signal, and outputting it as a first output signal;
a delay element receiving another split portion of the input optical signal and introducing a predetermined phase delay in the received input signal;
a second semiconductor optical amplifier (SOA2) the phase delayed signal from the delay element, amplifying the phase-delayed signal, and outputting it as a second output signal:
a first self-pulsating laser diode (SP1) monolithically integrated with the interferometer and receiving the first output signal and outputting a first regenerated clock signal produced by optical injection locking back to the SOA1;
a second self-pulsating laser diode (SP2) monolithically integrated with the interferometer and receiving the first output signal and outputting a regenerated clock signal produced by optical injection locking back to the SOA2;
a second output port receiving signals from the SOA1 and from the SOA2 and outputting a 3R regenerated signal, wherein the 3R regenerated signal is produced by combining:
(1) the signal from SOA1 that is a combination of the first regenerated clock signal and the first output signal;
and
(2) the signal from SOA2 that is a combination of the second regenerated clock signal and the second output signal.

8 more elements

Dependencies are inferred from the claim text.

Optical signal retiming, reshaping, and reamplifying (3R) regeneration system having monolithically integrated Mach Zehnder interferometer and self-pulsating laser diode

Life of this patent

Optical signal retiming, reshaping, and reamplifying (3R) regeneration system having monolithically integrated Mach Zehnder interferometer and self-pulsating laser diode

Life of this patent

Abstract

Claims20