Issued Patents All Time
Showing 26–50 of 144 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8521020 | Forward error correction (FEC) enabled photonic integrated circuit (PIC) chips with multiple signal channels | David F. Welch, Drew D. Perkins, Ting-Kuang Chiang | 2013-08-27 |
| 8300994 | Transmitter photonic integrated circuit (TxPIC) chip | David F. Welch, Vincent G. Dominic, Mark J. Missey, Radhakrishnan L. Nagarajan, Atul Mathur +9 more | 2012-10-30 |
| 8238759 | High capacity transmitter implemented on a photonic integrated circuit | Charles H. Joyner, Radhakrishnan L. Nagarajan, Masaki Kato, Peter W. Evans | 2012-08-07 |
| 8213802 | Receiver on a photonic IC | Brent E. Little, Wei-Lin Chen, John Hryniewicz, Sai Chu, Jeff Rahn +4 more | 2012-07-03 |
| 8184929 | Method of tuning optical components integrated in a monolithic photonic integrated circuit (PIC) | Charles H. Joyner, David F. Welch, Robert B. Taylor, Alan C. Nilsson | 2012-05-22 |
| 8155531 | Tunable photonic integrated circuits | Sanjeev Murthy, Mark J. Missey, Mehrdad Ziari, Masaki Kato, Radhakrishnan L. Nagarajan | 2012-04-10 |
| 7885492 | Transmitter photonic integrated circuit (TxPIC) chips | David F. Welch, Vincent G. Dominic, Mark J. Missey, Radhakrishnan L. Nagarajan, Atul Mathur +9 more | 2011-02-08 |
| 7792396 | Probe card for testing in-wafer photonic integrated circuits (PICs) and method of use | Frank Peters, Radhakrishnan L. Nagarajan, Richard P. Schneider | 2010-09-07 |
| 7773837 | Monolithic transmitter photonic integrated circuit (TXPIC) with a transversely disposed output | David F. Welch, Vincent G. Dominic, 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, Vincent G. Dominic, Robert B. Taylor, Matthew L. Mitchell, Alan C. Nilsson +2 more | 2010-07-06 |
| 7734191 | Forward error correction (FEC) enabled photonic integrated circuit (PICs) chips with multiple signal channels | David F. Welch, Drew D. Perkins, Ting-Kuang Chiang | 2010-06-08 |
| 7680368 | Monolithic transmitter photonic integrated circuit (TxPIC) with a traversely disposed output | David F. Welch, Vincent G. Dominic, 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, Vincent G. Dominic, Mark J. Missey, Radhakrishnan L. Nagarajan, Atul Mathur +5 more | 2010-03-02 |
| 7636522 | Coolerless photonic integrated circuits (PICs) for WDM transmission networks and PICs operable with a floating signal channel grid changing with temperature but with fixed channel spacing in the floating grid | Radhakrishnan L. Nagarajan, David F. Welch, Drew D. Perkins, Masaki Kato | 2009-12-22 |
| 7634195 | Digital optical network architecture | Jagdeep Ahluwalia SINGH, Drew D. Perkins, David F. Welch, Mark Yin, Stephen G. Grubb +4 more | 2009-12-15 |
| 7625771 | Method of reducing insertion loss in a transition region between a plurality of input or output waveguides to a free space coupler region | Charles H. Joyner, Mark J. Missey, Radhakrishnan L. Nagarajan | 2009-12-01 |
| 7570845 | Deployment of electro-optic amplitude varying elements (AVEs) and electro-optic multi-functional elements (MFEs) in photonic integrated circuits (PICs) | David F. Welch, Radhakrishnan L. Nagarajan, Alan C. Nilsson, Robert B. Taylor | 2009-08-04 |
| 7555220 | Chromatic dispersion compensator (CDC) in a photonic integrated circuit (PIC) chip and method of operation | Stephen G. Grubb, Charles H. Joyner, Frank Peters, Drew D. Perkins | 2009-06-30 |
| 7551815 | Method of monitoring and controlling the bit error rate (BER) in an optical communication network | David F. Welch, Ting-Kuang Chiang, Vincent G. Dominic, Radhakrishnan L. Nagarajan | 2009-06-23 |
| 7546001 | Monolithic photonic integrated circuit (PIC) with forward error correction (FEC) | David F. Welch, Radhakrishnan L. Nagarajan, Vincent G. Dominic, Ting-Kuang Chiang | 2009-06-09 |
| 7539365 | Deployment of electro-optic amplitude varying elements (AVEs) and electro-optic multi-functional elements (MFEs) in photonic integrated circuits (PICs) | David F. Welch, Radhakrishnan L. Nagarajan, Alan C. Nilsson, Robert L. Taylor | 2009-05-26 |
| 7529436 | Optical combiner/decombiner with reduced insertion loss | Charles H. Joyner, Mark J. Missey, Radhakrishnan L. Nagarajan | 2009-05-05 |
| 7526150 | Deployment of electro-optic amplitude varying elements (AVES) and electro-optic multi-functional elements (MFES) in photonic integrated circuits (PICS) | David F. Welch, Radhakrishnan L. Nagarajan, Alan C. Nilsson, Robert B. Taylor | 2009-04-28 |
| 7519246 | Photonic integrated circuit (PIC) chips | David F. Welch, Vincent G. Dominic, 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, Vincent G. Dominic, Mark J. Missey, Radhakrishnan L. Nagarajan, Atul Mathur +9 more | 2009-03-31 |