Christopher Doerr
257Patents
23h-index
92Co-inventors
93Inventor score
Filing activity: Apr 16, 1993 → May 17, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8503845B2 | Multi-core optical fiber and optical communication systems | Physics | 227 | Active |
| US5513194A | Stretched-pulse fiber laser | Emerging Cross-Sectional Technologies | 121 | Expired |
| US6275317A | Hybrid integration of a wavelength selectable laser source and optical amplifier/modulator | Electricity | 99 | Expired |
| US5617434A | Stretched-pulse fiber laser | Emerging Cross-Sectional Technologies | 90 | Expired |
| US5625478A | Optically restorable WDM ring network using simple add/drop circuitry | Electricity | 77 | Expired |
| US5987050A | Laser transmitter based on a coupler and having a controlled output port | Electricity | 65 | Expired |
| US6304350A | Temperature compensated multi-channel, wavelength-division-multiplexed passive optical network | Electricity | 65 | Expired |
| US5809184A | Polarization diversity waveguide grating receiver | Physics | 50 | Expired |
| US6049640A | Wavelength-division-multiplexing cross-connect using angular dispersive elements and phase shifters | Electricity | 49 | Expired |
| US5913000A | Method and apparatus for guiding optical signals | Electricity | 46 | Expired |
| US9874688B2 | Co-packaging photonic integrated circuits and application specific integrated circuits | Electricity | 46 | Active |
| US6212315A | Channel power equalizer for a wavelength division multiplexed system | Electricity | 39 | Expired |
| US9557478B2 | Electronic and optical co-packaging of coherent transceiver | Physics | 38 | Active |
| US6351581B1 | Optical add-drop multiplexer having an interferometer structure | Physics | 37 | Expired |
| US10852492B1 | Techniques to combine two integrated photonic substrates | Physics | 37 | Active |
| US6055250A | Multifrequency laser having reduced wave mixing | Electricity | 34 | Expired |
| US5576881A | Multi-frequency optical signal source having reduced distortion and crosstalk | Electricity | 34 | Expired |
| US5923449A | Optically restorable WDM ring network using simple add/drop circuitry | Electricity | 32 | Expired |
| US9464883B2 | Integrated optical coherence tomography systems and methods | Electricity | 30 | Active |
| US6961492B2 | Tunable dispersion compensator | Physics | 27 | Expired |
| US9922887B2 | Wafer-scale testing of photonic integrated circuits using horizontal spot-size converters | Physics | 26 | Active |
| US6141467A | Wavelength-division-multiplexing programmable add/drop using interleave-chirped waveguide grating router | Physics | 24 | Expired |
| US7343066B2 | Reconfigurable optical add/drop multiplexer | Physics | 23 | Expired |
| US8326100B2 | Low loss broadband fiber coupler to optical waveguide | Physics | 22 | Active |
| US6088144A | Detection of frequency-modulated tones in electromagnetic signals | Electricity | 22 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.