H04B 10/2916
Using raman or brillouin amplifiers
Official title: {using Raman or Brillouin amplifiers}
H04B10/2916 (Using raman or brillouin amplifiers) appears on 571 US grants and 570 published applications in this corpus.
Search patents in H04B- Granted patents
- 571
- Published applications
- 570
- Assignees
- 159
- Inventors
- 820
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 14 | 11 |
| 2002 | 30 | 70 |
| 2003 | 47 | 72 |
| 2004 | 61 | 73 |
| 2005 | 53 | 61 |
| 2006 | 57 | 33 |
| 2007 | 52 | 35 |
| 2008 | 33 | 15 |
| 2009 | 21 | 21 |
| 2010 | 22 | 13 |
| 2011 | 14 | 13 |
| 2012 | 12 | 12 |
| 2013 | 9 | 11 |
| 2014 | 16 | 8 |
| 2015 | 9 | 10 |
| 2016 | 9 | 10 |
| 2017 | 16 | 12 |
| 2018 | 7 | 9 |
| 2019 | 13 | 11 |
| 2020 | 3 | 9 |
| 2021 | 10 | 10 |
| 2022 | 10 | 9 |
| 2023 | 7 | 10 |
| 2024 | 6 | 7 |
| 2025 | 4 | 13 |
| 2026 | 10 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Technique to reduce signal crosstalk between cores in a multi-core optical fiber transmission8 Sep 2026US 12,732,300 B2NTT, Inc.
- Optical transmission system30 Jun 2026US 12,671,499 B2NTT, Inc.
- Gain equalization in C+L erbium-doped fiber amplifiers7 Apr 2026US 12,597,752 B2Subcom, LLC
- Determination of optical performance of distributed Raman amplifiers using deep neural networks7 Apr 2026US 12,597,997 B2Ciena Corporation
- Systems and methods for providing a wavelength independent passive optical network extender7 Apr 2026US 12,598,001 B2Precision Optical Transceivers Inc.
- Optical communication device, optical amplifier, and optical amplification method3 Sep 2026US 2026/0261355 A11FINITY Inc.
- Optical amplification relay device, optical transmission system and optical amplification relay method20 Aug 2026US 2026/0246534 A1NTT, Inc.
- Device for providing enhanced chromatic dispersion tolerance and/or optical signal-to-noise ratio in a passive optical network30 Jul 2026US 2026/0222069 A1Precision Optical Transceivers Inc.
- Raman Gain Measurements in Dynamically Controlled Optical Line Systems16 Jul 2026US 2026/0205194 A1Ciena Corporation
- Gain equalization in c+l erbium-doped fiber amplifiers9 Jul 2026US 2026/0196795 A1Subcom, LLC
Most cited
By later US patents
- Optical communication systems using raman repeaters and components therefor167US 4,616,898 APolaroid Corporation · 1986
- Method of upgrading transmission capacity by Raman amplification130US 5,959,750 ALucent Technologies Inc. · 1999
- Optical communication system using multiple-order Raman amplifiers127US 6,163,636 ALucent Technologies Inc. · 2000
- Article comprising low noise optical fiber raman amplifier115US 5,673,280 ALucent Technologies Inc. · 1997
- Raman amplifier, optical repeater, and raman amplification method114US 6,292,288 B1Furukawa Electric Co., Ltd. · 2001