Patents by Inventor Dale Flanders
Dale Flanders has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20200405540Abstract: A medical laser system for ophthalmological surgery, such as photocoagulation or another method of photo-thermal stimulation. The laser system includes a laser device configured to emit laser radiation at a visible wavelength and a laser controller configured to control the laser system. The laser device includes a laser source configured to emit a source radiation, and a frequency converter configured to receive the source radiation and to output said emitted laser radiation as a frequency-converted output of a frequency conversion process, which has an efficiency dependent on a wavelength of the source radiation. The laser controller is configured to adjust the optical output power of the emitted laser radiation to a selected target value by adjusting an operating temperature of the laser source and/or an operating temperature of the frequency converter such that the frequency converter is operated at an efficiency smaller than the maximum of the efficiency.Type: ApplicationFiled: March 24, 2017Publication date: December 31, 2020Inventors: Dale Flanders, Peter Skovgaard, Anders Hansen
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Publication number: 20080030726Abstract: A Raman system uses a semiconductor tunable laser subsystem to generate a tunable signal that is tuned over a scan band of greater than 50 nanometers. A probe system transmits the tunable signal to a sample. Finally a detector system comprises a bandpass filter for filtering a Raman signal from the sample generated by the tunable signal, and a detector for detecting the filtered Raman signal.Type: ApplicationFiled: March 28, 2007Publication date: February 7, 2008Applicant: AXSUN TECHNOLOGIES, INC.Inventors: Dale Flanders, Petros Kotidis, Xiaomei Wang
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Publication number: 20070071040Abstract: An optical power control system for a semiconductor source spectroscopy system controls power fluctuations in the tunable signal from the spectroscopy system and thus improves the noise performance of the system. This general solution has advantages relative to other systems that simply detect reference power levels during the scan and then correct the detected signal after interaction with the sample by reducing the requirements for coordinating the operation of the sample detectors and power or reference detectors. The spectroscopy system comprises a semiconductor source and a tunable filter. The combination of the semiconductor source and tunable signal illuminate a sample with a tunable signal, being tunable over a scan band. The power control system comprises an amplitude detector system for detecting the power of the tunable optical signal and power control system for regulating the amplitude of the tunable optical signal in response to its detected power.Type: ApplicationFiled: October 18, 2006Publication date: March 29, 2007Applicant: AXSUN TECHNOLOGIES, INC.Inventors: Dale Flanders, Walid Atia, Mark Kuznetsov
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Publication number: 20060215713Abstract: An external cavity laser has a mirror-based resonant tunable filter, such as a Fabry Perot tunable filter or Gires-Tournois interferometer tuning element, with the tunable filter being preferably used as a laser cavity mirror. A mirror-based resonant tunable filter is selected in which the spectral response in reflection has an angular dependence. A tilt scheme is used whereby by selecting an appropriate angle between the filter's nominal optical axis and the cavity optical axis, a narrowband peak spectral reflection is provided to the laser cavity. This tunable narrowband spectral reflection from the filter is used to lock and tune the laser output wavelength.Type: ApplicationFiled: June 22, 2005Publication date: September 28, 2006Applicant: Axsun Technologies, Inc.Inventors: Dale Flanders, Mark Kuznetsov, Walid Atia
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Publication number: 20060197958Abstract: Integrated spectroscopy systems are disclosed. In some examples, integrated tunable detectors, using one or multiple Fabry-Perot tunable filters, are provided. Other examples use integrated tunable sources. The tunable source combines one or multiple diodes, such as superluminescent light emitting diodes (SLED), and a Fabry Perot tunable filter or etalon. The advantages associated with the use of the tunable etalon are that it can be small, relatively low power consumption device. For example, newer microelectrical mechanical system (MEMS) implementations of these devices make them the size of a chip. This increases their robustness and also their performance. In some examples, an isolator, amplifier, and/or reference system is further provided integrated.Type: ApplicationFiled: April 28, 2006Publication date: September 7, 2006Applicant: Axsun Technologies, Inc.Inventors: Walid Atia, Dale Flanders, Petros Kotidis, Mark Kuznetsov
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Publication number: 20060187457Abstract: A spectroscopy system comprises a tunable semiconductor laser, such as an external cavity laser, that generates a tunable signal. A detector is provided for detecting the tunable signal after interaction with a sample. In this way, the system is able to determine the spectroscopic response of the sample by tuning the laser of the scan band and monitoring the detector's response. An integrating device, such as an integrating sphere, is interposed optically between the tunable semiconductor laser and the detector. This integrating device is used to mitigate the effects of parasitic spectral noise, such as noise that is generated by speckle or the combination of single- and multi-mode optical fibers in the transmission link between the tunable semiconductor laser and the detector.Type: ApplicationFiled: February 22, 2005Publication date: August 24, 2006Applicant: Axsun Technologies, Inc.Inventors: Walid Atia, Dale Flanders
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Publication number: 20060187461Abstract: Integrated spectroscopy systems are disclosed. In some examples, integrated tunable detectors, using one or multiple Fabry-Perot tunable filters, are provided. Other examples use integrated tunable sources. The tunable source combines one or multiple diodes, such as superluminescent light emitting diodes (SLED), and a Fabry Perot tunable filter or etalon. The advantages associated with the use of the tunable etalon are that it can be small, relatively low power consumption device. For example, newer microelectrical mechanical system (MEMS) implementations of these devices make them the size of a chip. This increases their robustness and also their performance. In some examples, an isolator, amplifier, and/or reference system is further provided integrated.Type: ApplicationFiled: April 28, 2006Publication date: August 24, 2006Applicant: Axsun Technologies, Inc.Inventors: Walid Atia, Dale Flanders, Petros Kotidis, Mark Kuznetsov
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Publication number: 20060132782Abstract: A semiconductor source spectroscopy system controls optical power variation of the tunable signal due to polarization dependent loss in the system and thus improves the noise performance of the system. It relies on using polarization control between the source and the sample and/or the sample and the detector.Type: ApplicationFiled: December 21, 2004Publication date: June 22, 2006Applicant: Axsun Technologies, Inc.Inventors: Dale Flanders, Walid Atia, Mark Kuznetsov
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Publication number: 20060072632Abstract: An optical power control system for a semiconductor source spectroscopy system controls power fluctuations in the tunable signal from the spectroscopy system and thus improves the noise performance of the system. This general solution has advantages relative to other systems that simply detect reference power levels during the scan and then correct the detected signal after interaction with the sample by reducing the requirements for coordinating the operation of the sample detectors and power or reference detectors. The spectroscopy system comprises a semiconductor source and a tunable filter. The combination of the semiconductor source and tunable signal illuminate a sample with a tunable signal, being tunable over a scan band. The power control system comprises an amplitude detector system for detecting the power of the tunable optical signal and power control system for regulating the amplitude of the tunable optical signal in response to its detected power.Type: ApplicationFiled: September 29, 2004Publication date: April 6, 2006Applicant: Axsun Technologies, Inc.Inventors: Dale Flanders, Walid Atia, Mark Kuznetsov
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Publication number: 20060072112Abstract: A multi semiconductor source tunable spectroscopy system has two or more semiconductor sources for generating tunable optical signals that are tunable over different spectral bands. The system enables the combination of these tunable signals to form an output signal that is tunable over a combined band including these individual spectral bands of the separate semiconductor sources. The system further compensates for spectral roll-off associated with the semiconductor sources. Specifically, near the limits of the semiconductor sources' spectral bands, the power in the tunable signal tends to degrade or decrease. The system compensates for this roll-off using drive current control, attenuators, or electronic compensation.Type: ApplicationFiled: September 30, 2004Publication date: April 6, 2006Applicant: Axsun Techonologies, Inc.Inventors: Dale Flanders, Walid Atia, Mark Kuznetsov
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Publication number: 20060072633Abstract: An optical power control system for a semiconductor source spectroscopy system controls power fluctuations in the tunable signal from the spectroscopy system and thus improves the noise performance of the system. This general solution has advantages relative to other systems that simply detect reference power levels during the scan and then correct the detected signal after interaction with the sample by reducing the requirements for coordinating the operation of the sample detectors and power or reference detectors. The spectroscopy system comprises a semiconductor source and a tunable filter. The combination of the semiconductor source and tunable signal illuminate a sample with a tunable signal, being tunable over a scan band. The power control system comprises an amplitude detector system for detecting the power of the tunable optical signal and power control system for regulating the amplitude of the tunable optical signal in response to its detected power.Type: ApplicationFiled: September 29, 2004Publication date: April 6, 2006Applicant: Axsun Technologies, Inc.Inventors: Dale Flanders, Xinfa Ma, Walid Atia
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Publication number: 20060065834Abstract: An optical power control system for a semiconductor source spectroscopy system controls power fluctuations in the tunable signal from the spectroscopy system and thus improves the noise performance of the system. This general solution has advantages relative to other systems that simply detect reference power levels during the scan and then correct the detected signal after interaction with the sample by reducing the requirements for coordinating the operation of the sample detectors and power or reference detectors. The spectroscopy system comprises a semiconductor source and a tunable filter. The combination of the semiconductor source and tunable signal illuminate a sample with a tunable signal, being tunable over a scan band. The power control system comprises an amplitude detector system for detecting the power of the tunable optical signal and power control system for regulating the amplitude of the tunable optical signal in response to its detected power.Type: ApplicationFiled: September 29, 2004Publication date: March 30, 2006Applicant: Axsun Technologies, Inc.Inventors: Dale Flanders, Walid Atia, Mark Kuznetsov
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Publication number: 20050255599Abstract: To address counterfeit problems, for example, we propose a secure, flexible, and cost-effective authentication solution that can be integrated into conventional distribution logistic systems. The proposed solution for product authentication and distribution channel validation comprises three major components: 1) machine-readable Raman-active chemical taggant; 2) a taggant reader; and 3) a taggant eraser. The proposed solution is to control and validate the distribution channel by authenticating the origin of products. Authentication is accomplished by verification of distinct taggants associated with the articles, such as on its label, along with other product distribution information in optical, spatial-encoding indicia, such as a barcode. The taggant information is used to identify, validate, and distinguish the origin of the source of the articles, such as goods or products.Type: ApplicationFiled: May 12, 2005Publication date: November 17, 2005Applicant: Axsun Technologies, Inc.Inventors: Xiaomei Wang, Dale Flanders, Petros Kotidis, Christopher Cook
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Publication number: 20050083533Abstract: Integrated spectroscopy systems are disclosed. In some examples, integrated tunable detectors, using one or multiple Fabry-Perot tunable filters, are provided. Other examples use integrated tunable sources. The tunable source combines one or multiple diodes, such as superluminescent light emitting diodes (SLED), and a Fabry Perot tunable filter or etalon. The advantages associated with the use of the tunable etalon are that it can be small, relatively low power consumption device. For example, newer microelectrical mechanical system (MEMS) implementations of these devices make them the size of a chip. This increases their robustness and also their performance. In some examples, an isolator, amplifier, and/or reference system is further provided integrated.Type: ApplicationFiled: October 17, 2003Publication date: April 21, 2005Applicant: AXSUN Technologies, Inc.Inventors: Walid Atia, Dale Flanders, Petros Kotidis, Mark Kuznetsov
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Publication number: 20050002616Abstract: An optical component manipulation system has two opposed jaws, which can each be independently positioned relative to each other in a coordinate plane to thereby effect the desired positioning of optical components within the larger system. Z-axis rigidity is provided by air-bearings. Laser heating of the jaws is used for solder, or similar heat driven bonding, processes.Type: ApplicationFiled: July 30, 2004Publication date: January 6, 2005Applicant: Axsun Technologies, Inc.Inventors: Robert Jenner, Dale Flanders, Peter Whitney, Jonathan Coppeta
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Publication number: 20050000087Abstract: An optical component manipulation system has two opposed jaws, which can each be independently positioned relative to each other in a coordinate plane to thereby effect the desired positioning of optical components within the larger system. Z-axis rigidity is provided by air-bearings. Laser heating of the jaws is used for solder, or similar heat driven bonding, processes.Type: ApplicationFiled: July 30, 2004Publication date: January 6, 2005Applicant: Axsun Technologies, Inc.Inventors: Robert Jenner, Dale Flanders, Peter Whitney, Jonathan Coppeta