H01S 3/06775
S-band amplifiers, i.e. amplification in the range of about 1450 nm to
Official title: {S-band amplifiers, i.e. amplification in the range of about 1450 nm to 1530 nm}
H01S3/06775 (S-band amplifiers, i.e. amplification in the range of about 1450 nm to) appears on 30 US grants and 38 published applications in this corpus.
Search patents in H01S- Granted patents
- 30
- Published applications
- 38
- Assignees
- 19
- Inventors
- 62
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 1 | 0 |
| 2003 | 0 | 15 |
| 2004 | 1 | 2 |
| 2005 | 9 | 2 |
| 2006 | 4 | 2 |
| 2007 | 3 | 3 |
| 2008 | 1 | 0 |
| 2009 | 2 | 1 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 3 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 2 |
| 2024 | 0 | 0 |
| 2025 | 0 | 4 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Optical signal amplification apparatus and related optical communication device27 Jan 2026US 12,537,357 B2Huawei Technologies Co., Ltd.
- Low-noise Raman amplifier30 Nov 2021US 11,189,986 B2Fujitsu Limited
- Wavelength converter, wavelength conversion method, and transmission device28 Apr 2020US 10,634,974 B2Fujitsu Limited
- Optical amplification repeater and optical transmission station9 Aug 2016US 9,413,462 B2Fujitsu Limited
- Rare earth-doped fiber optic device for emitting or amplifying a signal in the “S” band22 Jul 2014US 8,787,721 B2Alcatel Lucent
- Erbium doped fiber optical amplifier with adaptive filter9 Oct 2025US 2025/0316946 A1Fujitsu Limited
- Multi-core fiber amplifier and optical amplification method4 Sep 2025US 2025/0279623 A1NEC Corporation
- Multi-band erbium doped fiber optical amplifier28 Aug 2025US 2025/0273919 A1Fujitsu Limited
- Hybrid optical amplifier21 Aug 2025US 2025/0266656 A1Fujitsu Limited
- Optical signal amplification apparatus and related optical communication device5 Oct 2023US 2023/0318248 A1Huawei Technologies Co., Ltd.
Most cited
By later US patents
- Optical fiber for Raman amplification, optical fiber coil, Raman amplifier, and optical communication system18US 7,440,167 B2Furukawa Electric Co., Ltd. · 2008
- Optical fiber for Raman amplification, optical fiber coil, Raman amplifier, and optical communication system12US 7,248,399 B2Furukawa Electric Co., Ltd. · 2007
- Optical amplifier using wavelength converter11US 6,501,597 B1SpectraLane, Inc. · 2002
- Optical amplifier and multicore fiber10US 8,773,755 B2Fujitsu Limited · 2014
- Emission silicate waveguide compositions for enhanced L-band and S-band emission8US 6,757,474 B23M Innovative Properties Company · 2004