Claims
- 1. A multipath all optical regenerator and reshaper, comprising:
N semiconductor optical amplifiers (“SOA”s); M multi-mode interferometers (“MMI”s); a plurality of waveguides interconnecting the SOAs and MMIs, a plurality of possible inputs for a dirty optical signal at a first wavelength; a plurality of possible inputs for a continuous wavelength signal at a second wavelength; and a plurality of possible outputs of for a clean signal at the second wavelength; wherein the regenerator and reshaper comprises at least two disjoint configurations, each of which can implement the regeneration and reshaping functionality notwithstanding the failure of one or more SOAs, MMIs or waveguides in the other configurations.
- 2. The device of claim 1, wherein the first wavelength and the second wavelength can be the same.
- 3. The device of claim 1, wherein the continuous wavelength input is a tunable laser, and the second wavelength is adjustable.
- 4. The device of either of claims 1 or 2, where N equals 10, M equals 6, and the device comprises at least two disjoint configurations.
- 5. The device of claim 1, wherein the device is integrated on a common substrate.
- 6. The device of claim 5, where numerous devices are fabricated on a common wafer, and then separated into individual chips after such fabrication.
- 7. The device of claim 6, where the probability of each SOA being operational after fabrication is less than 1.
- 8. The device of claim 7, where said probability is significantly less than 1.
- 9. A method of increasing the probability that a given integrated optical signal processor will be functional, comprising:
providing multiple redundant paths for input and output optical signals in the optical signal processor, such that failure of one or more components in one redundant path does not render the optical signal processor nonfunctional overall.
- 10. The method of claim 9, where the optical signal processor is an AO2R device.
- 11. The method of claim 9, where the optical signal processor is a wavelength converter.
CROSS REFERENCE TO OTHER APPLICATIONS
[0001] This application claims the benefit of U.S. Provisional Patent Application No. 60/364,927, filed on Mar. 15, 2002, and Nos. 60/291,288 and 60/291,287, each filed on May 15, 2001.
Provisional Applications (3)
|
Number |
Date |
Country |
|
60364927 |
Mar 2002 |
US |
|
60291288 |
May 2001 |
US |
|
60291287 |
May 2001 |
US |