Issued Patents All Time
Showing 1–25 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12218708 | Apparatuses and methods for digital subcarrier parameter modifications for optical communication networks | Steven Joseph Hand, Ahmed Awadala, Luis A. Perez, Kuang-Tsan Wu | 2025-02-04 |
| 12132524 | Clock recovery for subcarriers in optical networks | Steven Joseph Hand, Ahmed Awadala, Luis A. Perez, Kuang-Tsan Wu | 2024-10-29 |
| 11368228 | Apparatuses and methods for digital subcarrier parameter modifications for optical communication networks | Steven Joseph Hand, Ahmed Awadala, Luis A. Perez, Kuang-Tsan Wu | 2022-06-21 |
| 10012797 | Monolithic photonic integrated circuit (PIC) with a plurality of integrated arrays of laser sources and modulators employing an extended identical active layer (EIAL) | Radhakrishnan L. Nagarajan, Fred A. Kish, Jr., Masaki Kato, Charles H. Joyner, David F. Welch +7 more | 2018-07-03 |
| 9372306 | Method of achieving acceptable performance in and fabrication of a monolithic photonic integrated circuit (PIC) with integrated arrays of laser sources and modulators employing an extended identical active layer (EIAL) | Radhakrishnan L. Nagarajan, Fred A. Kish, Jr., Masaki Kato, Charles H. Joyner, David F. Welch +7 more | 2016-06-21 |
| 8811827 | System for generating optical RZ signals based on electrical RZ signals | Jeffrey T. Rahn, Ilya Lyubomirsky, Alan C. Nilsson, Parmijit Samra | 2014-08-19 |
| 8705904 | Photonic integrated circuits having chirped elements | Fred A. Kish, Jr., Mehrdad Ziari, Radhakrishnan L. Nagarajan, Masaki Kato, Sanjeev Murthy +1 more | 2014-04-22 |
| 8385742 | Electrical return-to-zero (ERZ) driver circuit | Xinghua Yang, Paul N. Freeman, Huan-Shang Tsai, Alan C. Nilsson, Jeffrey S. Bostak +2 more | 2013-02-26 |
| 8300994 | Transmitter photonic integrated circuit (TxPIC) chip | David F. Welch, Fred A. Kish, Jr., Mark J. Missey, Radhakrishnan L. Nagarajan, Atul Mathur +9 more | 2012-10-30 |
| 8253508 | Modulator driver circuit having chirped components | Jeffrey S. Bostak, Parmijit Samra, Michael Kauffman | 2012-08-28 |
| 8064771 | Active control loop for power control of optical channel groups | Matthew L. Mitchell, Robert B. Taylor, Alan C. Nilsson | 2011-11-22 |
| 7885492 | Transmitter photonic integrated circuit (TxPIC) chips | David F. Welch, Fred A. Kish, Jr., Mark J. Missey, Radhakrishnan L. Nagarajan, Atul Mathur +9 more | 2011-02-08 |
| 7773837 | Monolithic transmitter photonic integrated circuit (TXPIC) with a transversely disposed output | David F. Welch, Fred A. Kish, Jr., Mark J. Missey, Radhakrishnan L. Nagarajan, Atul Mathur +9 more | 2010-08-10 |
| 7751658 | Monolithic transmitter photonic integrated circuit (TxPIC) having tunable modulated sources with feedback system for source power level or wavelength tuning | David F. Welch, Fred A. Kish, Jr., Robert B. Taylor, Matthew L. Mitchell, Alan C. Nilsson +2 more | 2010-07-06 |
| 7680368 | Monolithic transmitter photonic integrated circuit (TxPIC) with a traversely disposed output | David F. Welch, Fred A. Kish, Jr., Mark J. Missey, Radhakrishnan L. Nagarajan, Atul Mathur +9 more | 2010-03-16 |
| 7672546 | Optical transport network having a plurality of monolithic photonic integrated circuit semiconductor chips | David F. Welch, Fred A. Kish, Jr., Mark J. Missey, Radhakrishnan L. Nagarajan, Atul Mathur +5 more | 2010-03-02 |
| 7634195 | Digital optical network architecture | Jagdeep Ahluwalia SINGH, Drew D. Perkins, David F. Welch, Mark Yin, Fred A. Kish, Jr. +4 more | 2009-12-15 |
| 7574146 | Pattern-dependent error counts for use in correcting operational parameters in an optical receiver | Ting-Kuang Chiang, Robert B. Taylor | 2009-08-11 |
| 7551815 | Method of monitoring and controlling the bit error rate (BER) in an optical communication network | David F. Welch, Ting-Kuang Chiang, Fred A. Kish, Jr., Radhakrishnan L. Nagarajan | 2009-06-23 |
| 7546001 | Monolithic photonic integrated circuit (PIC) with forward error correction (FEC) | David F. Welch, Radhakrishnan L. Nagarajan, Fred A. Kish, Jr., Ting-Kuang Chiang | 2009-06-09 |
| 7519246 | Photonic integrated circuit (PIC) chips | David F. Welch, Fred A. Kish, Jr., Mark J. Missey, Radhakrishnan L. Nagarajan, Atul Mathur +13 more | 2009-04-14 |
| 7512295 | Transmitter photonic integrated circuits (TXPICS) with directly modulated lasers and wavelength selective combiners | David F. Welch, Fred A. Kish, Jr., Mark J. Missey, Radhakrishnan L. Nagarajan, Atul Mathur +9 more | 2009-03-31 |
| 7477807 | Monolithic transmitter photonic integrated circuit (TxPIC) semiconductor chip | David F. Welch, Fred A. Kish, Jr., Mark J. Missey, Radhakrishnan L. Nagarajan, Atul Mathur +9 more | 2009-01-13 |
| 7340122 | Monolithic transmitter photonic integrated circuit (TxPIC) with integrated optical components in circuit signal channels | David F. Welch, Fred A. Kish, Jr., Mark J. Missey, Radhakrishnan L. Nagarajan, Atul Mathur +9 more | 2008-03-04 |
| 7295783 | Digital optical network architecture | Jagdeep Ahluwalia SINGH, Drew D. Perkins, David F. Welch, Mark Yin, Fred A. Kish, Jr. +4 more | 2007-11-13 |