Optical bypass method and architecture
View Patent ↗The invention pertains to optical fiber transmission networks, and is particularly relevant to transmission of high volume of data and voice traffic among different locations. In particular, the improvement teaches improvements to an optical transport system to allow for efficient and flexible network evolution.
1. A terminal for use in an optical bypass system comprising:
an optical splitter connected to an incoming optical fiber;
a first amplifier connected to the optical splitter;
at least one optical receiver connected to the optical amplifier;
an optical combiner connected to an outgoing optical fiber;
a second amplifier connected to the optical combiner;
at least one optical transmitter connected to the second amplifier.
2. The terminal of claim 1 wherein the first amplifier is a multi stage amplifier.
3. The terminal of claim 2 wherein a dispersion compensation module is interposed between the stages of the multi stage amplifier.
4. The terminal of claim 1 wherein the second amplifier is a multi stage amplifier.
5. The terminal of claim 4 wherein a dispersion compensation module is interposed between the stages of the multi stage amplifier.
6. The terminal of claim 1 wherein the optical splitter is connected to a first bypass switch.
7. The terminal of claim 6 wherein the first bypass switch is a dynamic spectral equalizer.
8. The terminal of claim 6 wherein the optical combiner is connected to a second bypass switch.
9. The terminal of claim 8 wherein the second bypass switch is a dynamic spectral equalizer.
10. A terminal for use in an optical bypass system comprising:
a first amplifier connected an incoming optical fiber;
an optical splitter connected to the first amplifier;
at least one optical receiver connected to the optical splitter;
a second amplifier connected to an outgoing optical fiber;
an optical combiner connected to the second amplifier;
at least one optical transmitter connected to the optical combiner.
11. The terminal of claim 10 wherein the first amplifier is a multi stage amplifier.
12. The terminal of claim 11 wherein a dispersion compensation module is interposed between the stages of the multi stage amplifier.
13. The terminal of claim 10 wherein the second amplifier is a multi stage amplifier.
14. The terminal of claim 13 wherein a dispersion compensation module is interposed between the stages of the multi stage amplifier.
15. The terminal of claim 10 wherein the optical splitter is connected to a first bypass switch.
16. The terminal of claim 15 wherein the first bypass switch is a dynamic spectral equalizer.
17. The terminal of claim 15 wherein the optical combiner is connected to a second bypass switch.
18. The terminal of claim 17 wherein the second bypass switch is a dynamic spectral equalizer.
19. A terminal for use in an optical bypass system comprising:
a first amplifier connected to an incoming optical fiber;
an optical splitter connected to the first amplifier;
at least one optical receiver connected to the optical splitter;
an optical combiner connected to an outgoing optical fiber;
a second amplifier connected to the optical combiner;
at least one optical transmitter connected to the second amplifier.
20. The terminal of claim 19 wherein the first amplifier is a multi stage amplifier.
21. The terminal of claim 20 wherein a dispersion compensation module is interposed between the stages of the multi stage amplifier.
22. The terminal of claim 19 wherein the second amplifier is a multi stage amplifier.
23. The terminal of claim 22 wherein a dispersion compensation module is interposed between the stages of the multi stage amplifier.
24. The terminal of claim 19 wherein the optical splitter is connected to a first bypass switch.
25. The terminal of claim 24 wherein the first bypass switch is a dynamic spectral equalizer.
26. A terminal for use in an optical bypass system comprising:
an incoming multi stage amplifier having at least an incoming first stage and an incoming second stage connected to an incoming optical fiber;
a first dispersion compensation module connected to the incoming first stage;
an optical splitter connected to the first dispersion compensation module and to the incoming second stage;
at least one optical receiver connected to the incoming second stage;
an outgoing multi stage amplifier having at least an outgoing first stage and an outgoing second stage connected to an outgoing optical fiber;
an optical combiner connected to the outgoing second stage;
a second dispersion compensation module connected to the optical combiner;
the outgoing first stage connected to the dispersion combiner;
at least one optical transmitter connected to the outgoing first stage.
27. A terminal for use in an optical bypass system comprising:
an incoming multi stage amplifier having at least an incoming first stage and an incoming second stage connected to an incoming optical fiber;
a first dispersion compensation module connected to the incoming first stage;
an optical splitter connected to the first dispersion compensation module and to the incoming second stage;
at least one optical receiver connected to the incoming second stage;
an outgoing multi stage amplifier having at least an outgoing first stage and an outgoing second stage connected to an outgoing optical fiber;
an optical combiner connected to the outgoing second stage;
a second dispersion compensation module connected to the optical combiner;
the outgoing first stage connected to the dispersion combiner;
at least one optical transmitter connected to the outgoing first stage wherein the optical splitter is connected to a first bypass switch.
28. A terminal for use in an optical bypass system comprising:
an incoming multi stage amplifier having at least an incoming first stage and an incoming second stage connected to an incoming optical fiber;
a first dispersion compensation module connected to the incoming first stage;
an optical splitter connected to the first dispersion compensation module and to the incoming second stage;
at least one optical receiver connected to the incoming second stage;
an outgoing multi stage amplifier having at least an outgoing first stage and an outgoing second stage connected to an outgoing optical fiber;
an optical combiner connected to the outgoing second stage;
a second dispersion compensation module connected to the optical combiner;
the outgoing first stage connected to the dispersion combiner;
at least one optical transmitter connected to the outgoing first stage wherein the first bypass switch is a dynamic spectral equalizer.