Patents by Inventor Chi Luen Wang
Chi Luen Wang 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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Patent number: 11888285Abstract: A low numerical aperture fiber output diode laser module, which having several independent diode lasers, and collimated and converged the light beam, for the coupling the light to the core optical fiber with a core diameter of 105 um and a numerical aperture of 0.12. Compared with general products with a numerical aperture of 0.22, the light output angle is reduced to 55%, and use a general blue laser diode for verification. Use an optical software for facilitating the design and optimization of the parameters of the optical lens module.Type: GrantFiled: July 27, 2021Date of Patent: January 30, 2024Assignee: Turning Point Lasers CorporationInventors: Chi-Luen Wang, Hung-Sheng Lee, Tai-Ming Chang, Chun-Hui Yu, Yu-Ching Yeh, Sheng-Ping Lai, Shih-Wei Lin, Yuan-He Teng, Li-Chang Tsou, Szutsun Simon Ou
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Publication number: 20230402822Abstract: A manufacturing method of a semiconductor device includes: providing a semiconductor stack layer, wherein the semiconductor stack layer includes a first type semiconductor layer, a quantum well layer, and a second type semiconductor layer stacked in sequence; growing an aluminum nitride layer on the second type semiconductor layer; and annealing the aluminum nitride layer to achieve quantum well intermixing.Type: ApplicationFiled: November 9, 2022Publication date: December 14, 2023Applicants: National Tsing Hua University, Turning Point Lasers CorporationInventors: Ci-Ling Pan, Chi-Luen Wang, Hung-Sheng Lee, Li-Chang Tsou, Tzu-Neng Lin
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Publication number: 20230349696Abstract: An improved fiber-optic gyroscope (FOG) is proposed for enhancing the optical measurement sensitivity through the application of a heterodyne effect. The improved FOG is characterized by the use of a dual-injection polarization-maintaining 3×3 directional coupler which is configured to receive a pair of source light beams that are injected thereinto in a bi-directional manner. The forward-injected light beam is used to be split into a pair of interrogating beams for use by a coiled optical fiber to implement the detection and measurement of the Sagnac effect due to a rotational movement. On the other hand, the backward-injected light beam is used to be mixed with the paired interrogating beams that have passed through and returned from the coiled optical fiber to thereby provide a heterodyne effect that can boost the differential optical power amplitude of the paired interrogating beams, thereby enhancing the optical measurement sensitivity of the FOG application.Type: ApplicationFiled: July 10, 2023Publication date: November 2, 2023Inventors: Chi-Luen Wang, Ju-Tah Tung
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Publication number: 20230050230Abstract: An improved-type of interferometric fiber-optic gyroscope (FOG) is proposed, which is used for the observation and measurement of the Sagnac effect to determine the angular speed of a rotational movement with enhanced measurement sensitivity and accuracy. The improved FOG is characterized by the combined use of a polarization-maintaining mechanism, a symmetric beam-splitting configuration for the 3×3 directional coupler, a common optical path for the opposing beams, and a pair of photo detectors for the detection of a pair of differential phase signals that indicate the angular speed of the rotational movement. The combined use of these approaches can help significantly eliminate and reduce the common mode phase noises caused by polarization crosstalk to a minimum possible level that has never been achieved by the conventional FOGs, thus significantly enhancing the measurement sensitivity and accuracy to a much higher level.Type: ApplicationFiled: August 10, 2021Publication date: February 16, 2023Inventors: Chi-Luen Wang, Ju-Tah Tung
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Publication number: 20230037106Abstract: A low numerical aperture fiber output diode laser module, which having several independent diode lasers, and collimated and converged the light beam, for the coupling the light to the core optical fiber with a core diameter of 105 um and a numerical aperture of 0.12. Compared with general products with a numerical aperture of 0.22, the light output angle is reduced to 55%, and use a general blue laser diode for verification. Use an optical software for facilitating the design and optimization of the parameters of the optical lens module.Type: ApplicationFiled: July 27, 2021Publication date: February 2, 2023Inventors: CHI-LUEN WANG, HUNG-SHENG LEE, TAI-MING CHANG, CHUN-HUI YU, YU-CHING YEH, SHENG PING LAI, SHIH-WEI LIN, YUAN-HE TENG, LI-CHANG TSOU, SZUTSUN SIMON OU
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Patent number: 11513223Abstract: A ladar system and related method are disclosed where the system includes a ladar transmitter and a ladar receiver. The ladar transmitter transmits ladar pulses into a field of view, and the ladar receiver receives ladar pulse returns from objects in the field of view. The ladar receiver comprises a cross-receiver, the cross-receiver comprising a first 1D array of photodetector cells and a second 1D array of photodetector cells that are oriented differently relative to each other.Type: GrantFiled: May 9, 2019Date of Patent: November 29, 2022Assignee: AEYE, Inc.Inventors: Luis Carlos Dussan, Allan Steinhardt, Jordan Spencer Greene, Allen Chi-Luen Wang, Nitin Vyas, Daryoosh Rejaly
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Patent number: 10921450Abstract: A ladar system and related method are disclosed where a ladar transmitter transmits ladar pulses toward a plurality of range points, and a ladar receiver receives ladar returns from the range points, wherein the ladar receiver comprises a photo receiver. A sensor can be used to sense background light levels, and a control circuit can (1) measures the sensed background light levels and (2) provide frequency domain shuttering with respect to the photo receiver based on the measured background light levels.Type: GrantFiled: May 9, 2019Date of Patent: February 16, 2021Assignee: AEYE, INC.Inventors: Luis Carlos Dussan, Allan Steinhardt, Jordan Spencer Greene, Allen Chi-Luen Wang, Nitin Vyas, Daryoosh Rejaly
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Publication number: 20200341147Abstract: A ladar system and related method are disclosed where the system includes a ladar transmitter and a ladar receiver. The ladar transmitter transmits ladar pulses into a field of view, and the ladar receiver receives ladar pulse returns from objects in the field of view. The ladar receiver comprises a cross-receiver, the cross-receiver comprising a first 1D array of photodetector cells and a second 1D array of photodetector cells that are oriented differently relative to each other.Type: ApplicationFiled: May 9, 2019Publication date: October 29, 2020Inventors: Luis Carlos Dussan, Allan Steinhardt, Jordan Spencer Greene, Allen Chi-Luen Wang, Nitin Vyas, Daryoosh Rejaly
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Publication number: 20200341146Abstract: A ladar system and related method are disclosed where a ladar transmitter transmits ladar pulses toward a plurality of range points, and a ladar receiver receives ladar returns from the range points, wherein the ladar receiver comprises a photo receiver.Type: ApplicationFiled: May 9, 2019Publication date: October 29, 2020Inventors: Luis Carlos Dussan, Allan Steinhardt, Jordan Spencer Greene, Allen Chi-Luen Wang, Nitin Vyas, Daryoosh Rejaly
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Patent number: 10656272Abstract: A ladar system and related method are disclosed where the ladar system comprises first and second receivers. The first receiver receives a ladar return from a ladar pulse with a known transmit polarization. The second receiver receives the ladar return from the ladar pulse with the known transmit polarization. The ladar system also includes a control circuit that (1) measures incident polarizations at the first and second receivers with respect to the received ladar return and (2) separates a retro-reflective portion of the received ladar return from a non-retro-reflective portion of the received ladar return based on the measured incident polarization and the known transmit polarization.Type: GrantFiled: May 9, 2019Date of Patent: May 19, 2020Assignee: AEYE, INC.Inventors: Luis Carlos Dussan, Allan Steinhardt, Jordan Spencer Greene, Allen Chi-Luen Wang, Nitin Vyas, Daryoosh Rejaly
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Patent number: 10641897Abstract: A ladar system and related method are disclosed where the ladar system includes a sensor that senses background light levels. A control circuit of the ladar system (1) measures the sensed background light levels and (2) controllably adjusts a pulse duration for a new ladar pulse based on the measured background light levels. A ladar transmitter can then transmit the new ladar pulse, wherein the new ladar pulse has the adjusted pulse duration. In an example embodiment, this technique for adaptive pulse duration can be employed in the ladar system where the ladar transmitter and ladar receiver are arranged in a bistatic architecture.Type: GrantFiled: May 9, 2019Date of Patent: May 5, 2020Assignee: AEYE, INC.Inventors: Luis Carlos Dussan, Allan Steinhardt, Jordan Spencer Greene, Allen Chi-Luen Wang, Nitin Vyas, Daryoosh Rejaly
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Publication number: 20160301190Abstract: A laser device includes a laser diode bracket, a photodiode bracket, a laser diode, a photodiode, and an auto power control PCB (automatic power control printed circuit board). The photodiode bracket is configured on the laser diode bracket. The laser diode is configured on the laser diode bracket. The photodiode is configured on the photodiode bracket and on a lateral surface in which the laser diode emits laser a laser beam. In other words, out of a path of an optical axis of the laser beam. The auto power control PCB delivers a driving current such that the laser diode sends one laser beam. The photodiode detects the optical power of the laser beam and generates a feedback signal transmitted to the auto power control PCB for comparison in order to control the stability and reliability of optical output power by the laser diode.Type: ApplicationFiled: August 1, 2013Publication date: October 13, 2016Applicant: CLEVERWAVE TECHNOLOGY INC.Inventors: Ching-Chuan LEE, Chi-Luen WANG
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Publication number: 20160105237Abstract: When a bi-directional TAP receives via a first multimode bi-directional fiber a signal transmitted by a storage array to a server, a collimator collimates the light of the signal towards a splitter. The splitter splits the signal into two portions. One portion is output to a second multimode bi-directional fiber connected to the server and the other portion is output to a monitoring system for analysis. When the bi-directional TAP receives via the second fiber a signal transmitted by the server to the storage array, the collimator collimates the light of the signal towards the splitter. The splitter splits the signal into two portions. One portion is output to the first fiber so that it can be received by the storage array. The other portion is output to the monitoring system. The bi-directional TAP can be a reflective or a transmitted type of TAP.Type: ApplicationFiled: October 8, 2015Publication date: April 14, 2016Inventors: Chi-Luen Wang, Rama Vuppuladhadium, Jeff Chung
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Publication number: 20160091674Abstract: A traffic access point (TAP) includes a first angle polished multimode multiple-fiber push-on (MPO) termination, a second angle polished multimode MPO termination, and multiple angle polished LC terminations. At the least, the first and second angle polished multimode MPO terminations are each coupled to a key aligned adapter.Type: ApplicationFiled: September 25, 2015Publication date: March 31, 2016Inventors: Rama Vuppuladhadium, Chi-Luen Wang, Jeff Chung
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Patent number: 9294194Abstract: A network monitoring system for a multimode optical data network includes a filter based splitter and an avalanche photodiode detector-based detection subsystem. The system takes a very small amount of the energy from the main data stream to use as monitoring data signal. The filter based splitter operates in a manner that is fairly uniform among modes and permits very low energy levels to be diverted for monitoring without disrupting either the main or monitor data streams for any modes.Type: GrantFiled: August 19, 2013Date of Patent: March 22, 2016Assignee: Virtual Instruments CorporationInventors: Rama Vuppuladhadium, Chi-Luen Wang, John Marcolina, Jeff Chung
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Publication number: 20150050017Abstract: A network monitoring system for a multimode optical data network includes a filter based splitter and an avalanche photodiode detector-based detection subsystem. The system takes a very small amount of the energy from the main data stream to use as monitoring data signal. The filter based splitter operates in a manner that is fairly uniform among modes and permits very low energy levels to be diverted for monitoring without disrupting either the main or monitor data streams for any modes.Type: ApplicationFiled: August 19, 2013Publication date: February 19, 2015Applicant: Virtual Instruments CorporationInventors: RAMA VUPPULADHADIUM, CHI-LUEN WANG, JOHN MARCOLINA, JEFF CHUNG
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Patent number: 8897325Abstract: A fiber laser having a ring resonance path comprises a pump light source, a Yb-doped optical fiber and a light modulation unit. The pump light source emits a pump light. The Yb-doped optical fiber is coupled with the pump light. The light modulation unit includes a grating pair, a diaphragm and two reflective elements. The grating pair is coupled with the pump light. The diaphragm includes an aperture. The light transmitted by the grating pair partially passes through the aperture and reaches one of the reflective elements to become a reflective light, and the reflective light passes through the aperture and is transmitted through the grating pair and the other reflective element to be coupled back with the ring resonance path.Type: GrantFiled: September 10, 2013Date of Patent: November 25, 2014Assignee: National Tsing Hua UniversityInventors: Ci-Ling Pan, Alexey Zaytsev, Chih-Hsuan Lin, Yi-Jing You, Feng-Hua Tsai, Chi-Luen Wang
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Publication number: 20140341237Abstract: A fiber laser having a ring resonance path comprises a pump light source, a Yb-doped optical fiber and a light modulation unit. The pump light source emits a pump light. The Yb-doped optical fiber is coupled with the pump light. The light modulation unit includes a grating pair, a diaphragm and two reflective elements. The grating pair is coupled with the pump light. The diaphragm includes an aperture. The light transmitted by the grating pair partially passes through the aperture and reaches one of the reflective elements to become a reflective light, and the reflective light passes through the aperture and is transmitted through the grating pair and the other reflective element to be coupled back with the ring resonance path.Type: ApplicationFiled: September 10, 2013Publication date: November 20, 2014Applicant: National Tsing Hua UniversityInventors: Ci-Ling PAN, Alexey ZAYTSEV, Chih-Hsuan LIN, Yi-Jing YOU, Feng-Hua TSAI, Chi-Luen WANG
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Publication number: 20050280899Abstract: An optical beam expander with a function of laser ray power detection provides an electric signal for feedback controlling laser ray power. By-testing the power stability within a temperature range of 15 to 25° C., this apparatus demonstrates that it can stabilize an unstable laser to stable range of 5% when combined with a traditional self-controlling circuit arrangement.Type: ApplicationFiled: June 16, 2004Publication date: December 22, 2005Inventor: Chi-Luen Wang
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Patent number: 6970295Abstract: An optical beam expander with a function of laser ray power detection provides an electric signal for feedback controlling laser ray power. By testing the power stability within a temperature range of 15 to 25° C., this apparatus demonstrates that it can stabilize an unstable laser to stable range of 5% when combined with a traditional self-controlling circuit arrangement.Type: GrantFiled: June 16, 2004Date of Patent: November 29, 2005Assignee: Leadlight Technology, Inc.Inventor: Chi-Luen Wang