Temperature compensation for fiber optic transceivers using optimized convergence algorithms
First Claim
1. A temperature compensation system for a laser, the temperature compensation system comprising:
- a laser driver having a first potentiometer, the laser driver configured to provide a first signal to a laser based on a value of the first potentiometer;
an optical communication analyzer configured to provide a second signal indicative of a first output parameter of the laser; and
a computer system configured to drive the first signal and receive the second signal and determine a first updated value for the first potentiometer to obtain a first desired laser output parameter value based on a first known value of the first potentiometer, the second signal, and the first desired laser output parameter value.
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Accused Products
Abstract
A temperature compensation system comprises a laser driver having a first potentiometer, the laser driver configured to provide a first signal to a laser based on a value of the first potentiometer and an optical communication analyzer configured to provide a second signal indicative of a first output parameter of the laser. The temperature compensation system comprises a computer system configured to drive the first signal and receive the second signal and determine a first updated value for the first potentiometer to obtain a first desired laser output parameter value based on a first known value of the first potentiometer, the second signal, and the first desired laser output parameter value.
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Citations
28 Claims
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1. A temperature compensation system for a laser, the temperature compensation system comprising:
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a laser driver having a first potentiometer, the laser driver configured to provide a first signal to a laser based on a value of the first potentiometer;
an optical communication analyzer configured to provide a second signal indicative of a first output parameter of the laser; and
a computer system configured to drive the first signal and receive the second signal and determine a first updated value for the first potentiometer to obtain a first desired laser output parameter value based on a first known value of the first potentiometer, the second signal, and the first desired laser output parameter value. - View Dependent Claims (2, 3, 4, 5)
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6. A computer system comprising:
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a memory storing a temperature compensation program; and
a processor, which executes the temperature compensation program instructions to;
select a first setting for a first potentiometer for controlling a bias current of a laser diode;
receive a measurement of an average power of the laser diode; and
calculate a second setting for the first potentiometer based on the first setting for the first potentiometer, the measurement of the average power, and a desired average power. - View Dependent Claims (7, 8, 9, 10)
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11. A method for compensating for temperature variations of a laser diode comprising:
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selecting a first setting for a first potentiometer for controlling a bias current of a laser diode;
measuring an average power of the laser diode; and
calculating a second setting for the first potentiometer based on the first setting for the first potentiometer, the measured average power, and a desired average power. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A computer readable medium for use in a computer system comprising:
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a computer readable program code means for causing a computer to;
select a first setting for a first potentiometer for controlling a bias current of a laser diode;
receive a measurement of an average power of the laser diode; and
calculate a second setting for the first potentiometer based on the first setting for the first potentiometer, the measurement of the average power, and a desired average power. - View Dependent Claims (20, 21)
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22. A fiber optic transmitter comprising:
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a laser;
a first potentiometer for controlling a bias current of the laser; and
a second potentiometer for controlling a modulation current of the laser, wherein a first value of the first potentiometer is set for a specific temperature by;
selecting a second value for the first potentiometer;
measuring an average power of the laser; and
calculating the first value for the first potentiometer based on the second value for the first potentiometer, the measured average power, and a desired average power;
and wherein a third value of the second potentiometer is set for the specific temperature by;
selecting a fourth value for the second potentiometer;
measuring an extinction ratio of the laser; and
calculating the third value for the second potentiometer based on the fourth value for the second potentiometer, the measured extinction ratio, and a desired extinction ratio. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification