Patents by Inventor Yuanjun Huang
Yuanjun Huang 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).
-
Publication number: 20220128774Abstract: An optical or optoelectronic transceiver and methods of making the same are disclosed. The transceiver comprises a connector configured to receive an optical fiber array, a filter that is (i) configured to reflect first optical signals having a first wavelength and (ii) transparent to second optical signals having a second wavelength, wherein each of the first and second optical signals independently has an optical path to or from the optical fiber array, a mirror in the optical path of the second optical signals configured to reflect the second optical signals, a plurality of photodiodes configured to receive a subset of the first and/or second optical signals and generate a corresponding plurality of received electrical signals therefrom, and a plurality of laser diodes configured to transmit a remainder of the first and/or second optical signals from a corresponding plurality of transmitted electrical signals.Type: ApplicationFiled: July 9, 2019Publication date: April 28, 2022Inventors: Jinglei MAO, Yuanjun HUANG, Xiaohui TANG, Jian YANG, Jin LIU
-
Patent number: 11133647Abstract: Embodiments of the disclosure pertain to an optical transmitter comprising a laser configured to generate an optical signal from a single-ended electrical signal, a housing or (sub)assembly containing the laser, a driver configured to generate the single-ended electrical signal, a direct current (DC) return path, and an alternating current (AC) return path. The laser has a DC power pin, and the DC power has a DC component and an AC component. The driver has a first impedance at a first output through which the single-ended electrical signal passes. The housing or (sub)assembly has a second impedance matching the first impedance. The DC return path comprises an inductor and is configured to carry or conduct the DC component of the DC power from the laser (e.g., to an input pin on the driver). The AC return path is configured to carry or conduct the AC component of the DC power from the laser. Methods of using and manufacturing the same are also disclosed.Type: GrantFiled: September 20, 2018Date of Patent: September 28, 2021Assignee: Source Photonics (Chengdu) Company, Ltd.Inventors: Li Yi, Yuanjun Huang
-
Publication number: 20210226413Abstract: Embodiments of the disclosure pertain to an optical transmitter comprising a laser configured to generate an optical signal from a single-ended electrical signal, a housing or (sub)assembly containing the laser, a driver configured to generate the single-ended electrical signal, a direct current (DC) return path, and an alternating current (AC) return path. The laser has a DC power pin, and the DC power has a DC component and an AC component. The driver has a first impedance at a first output through which the single-ended electrical signal passes. The housing or (sub)assembly has a second impedance matching the first impedance. The DC return path comprises an inductor and is configured to carry or conduct the DC component of the DC power from the laser (e.g., to an input pin on the driver). The AC return path is configured to carry or conduct the AC component of the DC power from the laser. Methods of using and manufacturing the same are also disclosed.Type: ApplicationFiled: September 20, 2018Publication date: July 22, 2021Inventors: Li YI, Yuanjun HUANG
-
Patent number: 9843383Abstract: A multifunctional laser driving circuit, and an optical module and method of using the same, are disclosed. The circuit combines first and second optical signals having different functions to form a compound signal, and switches among the first optical signal, second optical signal and compound signal by enabling or disabling first and second laser drivers corresponding to the first and second optical signals. The circuit can provide functions to optical modules, including converting an electrical data signal into an optical data signal; converting an electrical line monitoring signal into an optical line monitoring signal; combining the optical data and line monitoring signals and synchronously transmitting them to a fiber; and providing an OTDR function. Relative to using external OTDR tools to detect line faults, the present circuit and method enables simple line connection, timely detection of lines faults, and low costs of implementation.Type: GrantFiled: July 8, 2015Date of Patent: December 12, 2017Assignee: SOURCE PHOTONICS (CHENGDU) CO., LTD.Inventors: Haijun Yao, Yuanjun Huang, Qiuming Wei
-
Patent number: 9653878Abstract: A dual-rate power point compensating circuit, comprising a microprocessor and a transmitter optical subsystem assembly (TOSA), wherein the TOSA includes a laser connected to a laser driver, a monitor photodiode (MPD) connected to the laser driver, and a current divider connected to the microprocessor and the MPD. When a feedback current from the MPD exceeds the adjustable and/or operating range of the laser driver, the feedback current is reduced so that it is kept in the adjustable and/or operating range of the laser driver. The laser driver determines the optical output power of the laser from the value of the reduced feedback current. The circuit and method extend the adjustable and/or operating range of a laser driver and enable it to regulate a target optical output power of the laser with a broad testing range and high accuracy when the feedback current is relatively high.Type: GrantFiled: December 23, 2014Date of Patent: May 16, 2017Assignee: Source Photonics (Chengdu) Co., Ltd.Inventors: Chaobo Jia, Yuanjun Huang, Yuanzhong Xu
-
Patent number: 9638736Abstract: A DC level detection circuit between high speed signal line connecting ports and a system using the same in optical communications is disclosed. Corresponding ports of a high speed signal line each have an additional resistor, where one additional resistor has a resistance significantly greater than that of the other resistor. The smaller resistor is grounded. The larger resistor is connected to a DC voltage source, a low pass filter, and a signal detection port. Thus, when both ports of the high speed signal line are connected, a status of the electrical level detected at the signal detection port changes. The circuit detects the connection state of the high speed signal line without negative effects on signal transmission and is applicable to various circuits, especially plug-in modules and corresponding slots. Thus, the circuit further enables signal port multifunctionality, increases module installation accuracy, and provides higher compatibility for plug-in modules.Type: GrantFiled: November 25, 2014Date of Patent: May 2, 2017Assignee: Source Photonics (Chengdu) Co., Ltd.Inventors: Shengzhi Cai, Qiuming Wei, Yuanjun Huang, Yuanzhong Xu
-
Patent number: 9628191Abstract: The present application discloses a method and circuitry that improves the monitoring and/or reporting accuracy and of a TOSA transmitter output power. In the method, the output power of an optical transmitter is measured at 25° C. and at N individual temperatures to obtain N tracking error (TE) values corresponding to the N individual temperature values, then a lookup table covering an operating temperature range of the transmitter is created based on a one-to-one mapping relationship between the TE values and the N individual temperatures and a line fitting process. The transmitter output power is reported at an interface of the transmitter according to the TE value at the transmitter operating temperature in the lookup table. The present application also discloses optical modules and optical communication systems. The present method and transmitter effectively improve the monitoring and/or reporting accuracy of the transmitter output power.Type: GrantFiled: February 12, 2015Date of Patent: April 18, 2017Assignee: Source Photonics (Chengdu) Co., Ltd.Inventors: Chuxu Xie, Yuanjun Huang, Yuanzhong Xu
-
Publication number: 20170012701Abstract: A multifunctional laser driving circuit, and an optical module and method of using the same, are disclosed. The circuit combines first and second optical signals having different functions to form a compound signal, and switches among the first optical signal, second optical signal and compound signal by enabling or disabling first and second laser drivers corresponding to the first and second optical signals. The circuit can provide functions to optical modules, including converting an electrical data signal into an optical data signal; converting an electrical line monitoring signal into an optical line monitoring signal; combining the optical data and line monitoring signals and synchronously transmitting them to a fiber; and providing an OTDR function. Relative to using external OTDR tools to detect line faults, the present circuit and method enables simple line connection, timely detection of lines faults, and low costs of implementation.Type: ApplicationFiled: July 8, 2015Publication date: January 12, 2017Inventors: Haijun YAO, Yuanjun HUANG, Qiuming WEI
-
Publication number: 20160241343Abstract: The present application discloses a method and circuitry that improves the monitoring and/or reporting accuracy and of a TOSA transmitter output power. In the method, the output power of an optical transmitter is measured at 25° C. and at N individual temperatures to obtain N tracking error (TE) values corresponding to the N individual temperature values, then a lookup table covering an operating temperature range of the transmitter is created based on a one-to-one mapping relationship between the TE values and the N individual temperatures and a line fitting process. The transmitter output power is reported at an interface of the transmitter according to the TE value at the transmitter operating temperature in the lookup table. The present application also discloses optical modules and optical communication systems. The present method and transmitter effectively improve the monitoring and/or reporting accuracy of the transmitter output power.Type: ApplicationFiled: February 12, 2015Publication date: August 18, 2016Applicant: SOURCE PHOTONICS (CHENGDU) CO., LTD.Inventors: Chuxu XIE, Yuanjun HUANG, Yuanzhong XU
-
Publication number: 20160226217Abstract: A dual-rate power point compensating circuit, comprising a microprocessor and a transmitter optical subsystem assembly (TOSA), wherein the TOSA includes a laser connected to a laser driver, a monitor photodiode (MPD) connected to the laser driver, and a current divider connected to the microprocessor and the MPD. When a feedback current from the MPD exceeds the adjustable and/or operating range of the laser driver, the feedback current is reduced so that it is kept in the adjustable and/or operating range of the laser driver. The laser driver determines the optical output power of the laser from the value of the reduced feedback current. The circuit and method extend the adjustable and/or operating range of a laser driver and enable it to regulate a target optical output power of the laser with a broad testing range and high accuracy when the feedback current is relatively high.Type: ApplicationFiled: December 23, 2014Publication date: August 4, 2016Applicant: SOURCE PHOTONICS (CHENGDU) CO., LTD.Inventors: Chaobo JIA, Yuanjun HUANG, Yuanzhong XU
-
Publication number: 20160146862Abstract: A DC level detection circuit between high speed signal line connecting ports and a system using the same in optical communications is disclosed. Corresponding ports of a high speed signal line each have an additional resistor, where one additional resistor has a resistance significantly greater than that of the other resistor. The smaller resistor is grounded. The larger resistor is connected to a DC voltage source, a low pass filter, and a signal detection port. Thus, when both ports of the high speed signal line are connected, a status of the electrical level detected at the signal detection port changes. The circuit detects the connection state of the high speed signal line without negative effects on signal transmission and is applicable to various circuits, especially plug-in modules and corresponding slots. Thus, the circuit further enables signal port multifunctionality, increases module installation accuracy, and provides higher compatibility for plug-in modules.Type: ApplicationFiled: November 25, 2014Publication date: May 26, 2016Applicant: SOURCE PHOTONICS (CHENGDU) CO., LTD.Inventors: Shengzhi CAI, Qiuming WEI, Yuanjun HUANG, Yuanzhong XU
-
Patent number: 8666255Abstract: An optical and/or optoelectrical transceiver and system are disclosed that enable parallel transmission of data and management signals via an optical fiber without affecting data signal transmissions transmitted on the optical fiber. Furthermore, the present transceiver and system provide a fault diagnosis function for an optical fiber link. The transceiver and system generally comprise an interface, an intersecting transmission management unit, a driver, a management signal driving unit, an optical transmitter, an optical receiver, an amplifier, a management signal recovery unit, a management unit, and optionally, a power supply unit.Type: GrantFiled: August 15, 2011Date of Patent: March 4, 2014Assignee: Source Photonics, Inc.Inventors: Yuanjun Huang, Jianhua Zhou, Yaxi Xiong, Shengzhong Zhang
-
Publication number: 20120170927Abstract: An optical and/or optoelectrical transceiver and system are disclosed that enable parallel transmission of data and management signals via an optical fiber without affecting data signal transmissions transmitted on the optical fiber. Furthermore, the present transceiver and system provide a fault diagnosis function for an optical fiber link. The transceiver and system generally comprise an interface, an intersecting transmission management unit, a driver, a management signal driving unit, an optical transmitter, an optical receiver, an amplifier, a management signal recovery unit, a management unit, and optionally, a power supply unit.Type: ApplicationFiled: August 15, 2011Publication date: July 5, 2012Inventors: Yuanjun HUANG, Jianhua ZHOU, Yaxi XIONG, Shengzhong ZHANG
-
Patent number: 7650077Abstract: An optical transceiver module includes an optical-to-electrical converter configured to convert a first optical signal to a first electric signal, a first amplifier configured to amplify the first electric signal, a bandwidth controller coupled to the first amplifier, configured to control the frequency response characteristics of the amplification of the first amplifier to produce a first amplified electric signal, a driver circuit configured to receive a second electric signal and to produce a second amplified electric signal in response to the second electric signal and an optical feedback signal, an electrical-to-optical converter coupled to the micro-controller and configured to convert the second amplified electrical signal to a second optical signal, and a photo diode configured to detect the second optical signal and to produce the optical feedback signal to be received by the driver circuit.Type: GrantFiled: April 3, 2007Date of Patent: January 19, 2010Assignee: Source Photonics Santa Clara, Inc.Inventors: Rangchen Yu, Yuanjun Huang, Mingshou He, Bin Wei, Jiang Tian
-
Publication number: 20070269217Abstract: An optical transceiver module includes an optical-to-electrical converter configured to convert a first optical signal to a first electric signal, a first amplifier configured to amplify the first electric signal, a bandwidth controller coupled to the first amplifier, configured to control the frequency response characteristics of the amplification of the first amplifier to produce a first amplified electric signal, a driver circuit configured to receive a second electric signal and to produce a second amplified electric signal in response to the second electric signal and an optical feedback signal, an electrical-to-optical converter coupled to the micro-controller and configured to convert the second amplified electrical signal to a second optical signal, and a photo diode configured to detect the second optical signal and to produce the optical feedback signal to be received by the driver circuit.Type: ApplicationFiled: April 3, 2007Publication date: November 22, 2007Inventors: Rangchen Yu, Yuanjun Huang, Mingshou He, Bin Wei, Jiang Tian
-
Patent number: 7200336Abstract: An optical transceiver module includes an optical-to-electrical converter configured to convert a first optical signal to a first electric signal, a first amplifier configured to amplify the first electric signal, a bandwidth controller coupled to the first amplifier, configured to control the frequency response characteristics of the amplification of the first amplifier to produce a first amplified electric signal, a driver circuit configured to receive a second electric signal and to produce a second amplified electric signal in response to the second electric signal and an optical feedback signal, an electrical-to-optical converter coupled to the micro-controller and configured to convert the second amplified electrical signal to a second optical signal, and a photo diode configured to detect the second optical signal and to produce the optical feedback signal to be received by the driver circuit.Type: GrantFiled: October 25, 2005Date of Patent: April 3, 2007Assignee: Fiberxon, Inc.Inventors: Rangchen Yu, Yuanjun Huang, Mingshou He, Bin Wei, Jiang Tian
-
Patent number: 7183540Abstract: A system for measuring gains of a plurality of photo diodes includes a chamber adapted to host the plurality of photo diodes and a temperature control unit configured to control the temperature within the chamber to a predetermined temperature. A control unit selects at least one of the plurality of photo diodes. A hosting unit is configured to provide a bias voltage to the selected photo diode at the predetermined temperature. A light source transmits photo signals to the selected photo diode at the predetermined temperature. A measurement unit configured to measure current signals generated by the selected photo diode in response to the photo signals under the bias voltage at the predetermined temperature.Type: GrantFiled: March 17, 2005Date of Patent: February 27, 2007Assignee: Fiberxon Inc.Inventors: Chao Zhang, Xuefei Zeng, Zhong Yang, Yuanjun Huang, Zhiyong Jiang, Jun Cao
-
Publication number: 20060208180Abstract: A system for measuring gains of a plurality of photo diodes includes a chamber adapted to host the plurality of photo diodes and a temperature control unit configured to control the temperature within the chamber to a predetermined temperature. A control unit selects at least one of the plurality of photo diodes. A hosting unit is configured to provide a bias voltage to the selected photo diode at the predetermined temperature. A light source transmits photo signals to the selected photo diode at the predetermined temperature. A measurement unit configured to measure current signals generated by the selected photo diode in response to the photo signals under the bias voltage at the predetermined temperature.Type: ApplicationFiled: March 17, 2005Publication date: September 21, 2006Inventors: Chao Zhang, Xuefei Zeng, Zhong Yang, Yuanjun Huang, Zhiyong Jiang, Jun Cao
-
Publication number: 20060034612Abstract: An optical transceiver module includes an optical-to-electrical converter configured to convert a first optical signal to a first electric signal, a first amplifier configured to amplify the first electric signal, a bandwidth controller coupled to the first amplifier, configured to control the frequency response characteristics of the amplification of the first amplifier to produce a first amplified electric signal, a driver circuit configured to receive a second electric signal and to produce a second amplified electric signal in response to the second electric signal and an optical feedback signal, an electrical-to-optical converter coupled to the micro-controller and configured to convert the second amplified electrical signal to a second optical signal, and a photo diode configured to detect the second optical signal and to produce the optical feedback signal to be received by the driver circuit.Type: ApplicationFiled: October 25, 2005Publication date: February 16, 2006Inventors: Rangchen Yu, Yuanjun Huang, Mingshou He, Bin Wei, Jiang Tian
-
Patent number: RE44107Abstract: An optical transceiver module includes an optical-to-electrical converter configured to convert a first optical signal to a first electric signal, a first amplifier configured to amplify the first electric signal, a bandwidth controller coupled to the first amplifier, configured to control the frequency response characteristics of the amplification of the first amplifier to produce a first amplified electric signal, a driver circuit configured to receive a second electric signal and to produce a second amplified electric signal in response to the second electric signal and an optical feedback signal, an electrical-to-optical converter coupled to the micro-controller and configured to convert the second amplified electrical signal to a second optical signal, and a photo diode configured to detect the second optical signal and to produce the optical feedback signal to be received by the driver circuit.Type: GrantFiled: December 6, 2010Date of Patent: March 26, 2013Assignee: Source Photonics, Inc.Inventors: Rangchen Yu, Yuanjun Huang, Mingshou He, Bin Wei, Jiang Tian