Feedback mechanisms for stabilizing a laser system
First Claim
1. Apparatus comprising:
- at least one radiation source, each radiation source selectively generating an output signal at a predetermined wavelength band and polarization;
a transmission filter means comprising a separate input port coupled to each one of the at least one radiation source, and at least one output port for generating a filtered output signal from the output signal generated by the at least one radiation source;
a feedback mechanism coupled to at least one of the at least one output port of the transmission filter means for providing a feedback signal that is directed back through the transmission filter means for stabilizing each of the at least one radiation source; and
the apparatus is polarization maintaining wherein the at least one radiation source, the transmission filter means, and the feedback mechanism are interconnected such that principle axes of polarization thereof are substantially aligned.
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Accused Products
Abstract
An optical system has a transmission filter device, a feedback mechanism, and one or more radiation sources. Each radiation source generates an output signal with a predetermined wavelength band and polarization and is coupled to a separate input port of the transmission filter device. The transmission filter device, which is responsive to output signal from each radiation source, generates an output signal from at least one output port thereof. The feedback mechanism is coupled to at least one output port of the transmission filter device for providing a feedback signal that is directed back through the transmission filter device to each of the radiation sources for stabilizing each of the radiation sources. The apparatus is polarization maintaining wherein the one or more radiation sources, the transmission filter device, and the feedback mechanism are interconnected such that principle axes of polarization thereof are substantially aligned.
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Citations
39 Claims
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1. Apparatus comprising:
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at least one radiation source, each radiation source selectively generating an output signal at a predetermined wavelength band and polarization;
a transmission filter means comprising a separate input port coupled to each one of the at least one radiation source, and at least one output port for generating a filtered output signal from the output signal generated by the at least one radiation source;
a feedback mechanism coupled to at least one of the at least one output port of the transmission filter means for providing a feedback signal that is directed back through the transmission filter means for stabilizing each of the at least one radiation source; and
the apparatus is polarization maintaining wherein the at least one radiation source, the transmission filter means, and the feedback mechanism are interconnected such that principle axes of polarization thereof are substantially aligned. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. Apparatus comprising:
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at least a first and a second radiation source, each radiation source selectively generating an output signal from one of a group consisting of a different wavelength band, a same wavelength band and a different polarization from that of another radiation source, and a different wavelength band and a different polarization from that of another radiation source;
a transmission filter/multiplexer comprising at least one output port, and a separate input port coupled to each one of the at least first and second radiation sources for multiplexing and filtering the received output signals from the at least first and second radiation sources and generating a multiplexed output signal therefrom at the at least one output port;
a feedback mechanism coupled to at least one of the at least one output port of the transmission filter/multiplexer for generating a feedback signal that is directed back through the transmission filter/multiplexer for stabilizing the at least first and second radiation sources; and
the apparatus is polarization maintaining wherein the at least first and second radiation sources, the transmission filter/multiplexer, and the feedback mechanism are interconnected such that principle axes of polarization thereof are substantially aligned. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification