H04B 10/2563
Four-wave mixing [fwm]
Official title: Four-wave mixing [FWM]
H04B10/2563 (Four-wave mixing [fwm]) appears on 102 US grants and 62 published applications in this corpus.
Search patents in H04B- Granted patents
- 102
- Published applications
- 62
- Assignees
- 48
- Inventors
- 190
- Latest grant
- 20 Feb 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 10 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 5 | 6 |
| 2002 | 8 | 5 |
| 2003 | 8 | 8 |
| 2004 | 8 | 8 |
| 2005 | 4 | 6 |
| 2006 | 11 | 2 |
| 2007 | 4 | 1 |
| 2008 | 2 | 0 |
| 2009 | 1 | 2 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 1 | 3 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 2 |
| 2017 | 3 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 2 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 3 | 3 |
| 2024 | 2 | 1 |
| 2025 | 0 | 4 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Photonic integrated circuit (PIC) radio frequency I/Q signal correlator20 Feb 2024US 11,909,442 B2Raytheon BBN Technologies Corp.
- Photonic integrated circuit (PIC) radio frequency signal correlator30 Jan 2024US 11,888,520 B2Raytheon BBN Technologies Corp.
- Optical communication device, optical transmission system, wavelength converter, and optical communication method6 Jun 2023US 11,668,870 B2Fujitsu Limited
- Calibrating a Raman amplifier by maximizing gain and minimizing intermodulation effects25 Apr 2023US 11,637,635 B1Ciena Corporation
- Reducing rotation sensing errors from laser source signal and modulation cross-talk11 Apr 2023US 11,624,614 B1Honeywell International Inc.
- Minimizing phase-delay-induced signal loss in optical fibers19 Mar 2026US 2026/0081682 A1AT&T Communications Services India Private Limited
- Device and method for tuning the polarization of two or more beams for wavelength division multiplexing22 May 2025US 2025/0164830 A1Huawei Technologies Co., Ltd.
- Calibrating a Raman amplifier by maximizing gain and minimizing intermodulation effects13 Feb 2025US 2025/0055572 A1Ciena Corporation
- Optical communication method, apparatus, and system16 Jan 2025US 2025/0023639 A1
- Optical communication system and first node9 Jan 2025US 2025/0015893 A1
Most cited
By later US patents
- Method and apparatus for improving spectral efficiency in wavelength division multiplexed transmission systems196US 6,134,033 ATyco Submarine Systems Ltd. · 2000
- Optimized optical transmission system for high capacity transmission129US 5,717,510 AFujitsu Limited · 1998
- Method and apparatus for scrambling the polarization of signal lights forming a wavelength division multiplexed signal light61US 5,841,557 AFujitsu Limited · 1998
- Optical wavelength multiplex transmission method and optical dispersion compensation method60US 5,696,614 AFujitsu Limited · 1997
- Methods and apparatus for reducing four-wave mixing53US 6,118,563 ACorning Incorporated · 2000