Error function analysis of optical components

• US 20030189701A1
• Filed: 05/01/2003
• Published: 10/09/2003
• Est. Priority Date: 03/29/2001
• Status: Active Grant

• Current Assignee: Viavi Solutions, Inc. (Lumentum Holdings Inc.)
• Original Assignee: Circadiant Systems, Inc. (Lumentum Holdings Inc.)
• Inventors: French, John Sargent, Thompson, William Joseph, Franke, Jorge Eduardo, Sun, Sheldon Louis
• Granted Patent: US 6,956,642 B2
• Time in Patent Office: Days
• US Class Current: 356/73.1
• CPC Class Codes: G01M 11/332 using discrete input signals G01M11/333 takes precedence
• CPC Class Codes: H04B 10/07 Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems

Abstract

A device and method that performs error analysis of an optical component. An optical transmitter transmits a test signal at a plurality of selected optical power levels. A port outputs the test signal to the optical component, and then receives a version of the test signal from the optical component. A receiver determines errors in the received version of the test signal. A processor determines an error rate at each of the selected optical power levels based on the determined errors, and also determines an uncertainty range for each determined error rate. An interface provides indication of the determined error rates in relation to the determined uncertainty ranges.

Claims

1. A device for performing error analysis of optical components, comprising:

an optical transmitter that transmits a test signal at a plurality of optical power levels;

a port that outputs the test signal to an optical component and receives a version of the test signal from the optical component;

a receiver that determines errors in the received version of the test signal at the plurality of optical power levels;

a processor that determines an error rate at each of the optical power levels based on the determined errors, and that determines an uncertainty range for each of the determined error rates; and

an interface that provides indication of the determined uncertainty ranges in relation to the determined error rates.

2. The device of claim 1, wherein the determined uncertainty ranges for the determined error rates are respectively one standard deviation or multiple standard deviations above and below the determined error rates.

3. The device of claim 2, wherein a user defines the uncertainty ranges.

4. The device of claim 2, wherein one standard deviation is determined using a statistical distribution.

5. The device of claim 4, wherein the statistical distribution is a binomial distribution.

6. The device of claim 4, wherein the statistical distribution is a Poisson distribution.

7. The device of claim 4, wherein the statistical distribution uses a Poisson distribution and a binomial distribution.

8. The device of claim 1, wherein the interface comprises a graphical device that provides a visual plot of the determined error rates with indication of the determined uncertainty ranges.

9. The device of claim 8, wherein the graphical device plots the determined uncertainty ranges as lines extending from points representing the determined error rates.

10. The device of claim 1, wherein the determined error rates and the determined uncertainty ranges are updated during error analysis.

11. The device of claim 1, wherein error analysis is performed at each of the optical power levels until a specified uncertainty is reached for the selected optical power levels.

12. A device for performing error analysis of optical components, comprising:

an optical transmitter that transmits a test signal at a plurality of optical power levels;

a port that outputs the test signal to an optical component and receives a version of the test signal from the optical component;

a receiver that determines errors in the received version of the test signal; and

a processor that determines an error rate at each of the optical power levels based on the determined errors, and continues testing at each optical power level of the optical component until a specified uncertainty level is met.

13. A method of error analysis of optical components, comprising:

transmitting a test signal at a plurality of optical power levels to an optical component;

receiving a version of the test signal from the optical component;

determining errors in the received version of the test signal;

determining an error rate at each of the optical power levels based on the determined errors;

determining an uncertainty range for each determined error rate; and

providing indication of the determined uncertainty ranges in relation to the determined error rates.

14. The method of claim 13, wherein said providing indication comprises producing a visible plot of the determined error rates with indication of the uncertainty ranges.

15. The method of claim 14, wherein the determined uncertainty ranges for the determined error rates are respectively one standard deviation or multiple standard deviations above and below the determined error rates.

16. The method of claim 15, wherein one standard deviation is determined using a statistical distribution.

17. The method of claim 16, wherein the statistical distribution is a binomial distribution.

18. The method of claim 16, wherein the statistical distribution is a Poisson distribution.

19. The method of claim 16, wherein the statistical distribution uses a Poisson distribution and a binomial distribution.

20. The method of claim 14, wherein the determined uncertainty ranges are plotted as lines extending from points representing the determined error rates.

21. The method of claim 13, wherein the determined error rates and the determined uncertainty ranges are updated during error analysis.

22. The method of claim 14, wherein testing at each of the optical power levels is performed until a specified uncertainty is reached for the optical power levels.