H01S 3/0677
L-band amplifiers, i.e. amplification in the range of about 1560 nm to
Official title: {L-band amplifiers, i.e. amplification in the range of about 1560 nm to 1610 nm}
H01S3/0677 (L-band amplifiers, i.e. amplification in the range of about 1560 nm to) appears on 133 US grants and 152 published applications in this corpus.
Search patents in H01S- Granted patents
- 133
- Published applications
- 152
- Assignees
- 77
- Inventors
- 299
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 11 | 13 |
| 2003 | 12 | 28 |
| 2004 | 9 | 8 |
| 2005 | 20 | 15 |
| 2006 | 12 | 7 |
| 2007 | 8 | 10 |
| 2008 | 5 | 6 |
| 2009 | 6 | 0 |
| 2010 | 4 | 1 |
| 2011 | 2 | 4 |
| 2012 | 2 | 0 |
| 2013 | 1 | 1 |
| 2014 | 2 | 2 |
| 2015 | 2 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 3 |
| 2019 | 2 | 6 |
| 2020 | 4 | 7 |
| 2021 | 6 | 4 |
| 2022 | 5 | 6 |
| 2023 | 4 | 8 |
| 2024 | 3 | 10 |
| 2025 | 1 | 8 |
| 2026 | 7 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods to reduce the power consumption of an optical fiber amplifier11 Aug 2026US 12,706,432 B2Huawei Technologies Co., Ltd.
- Pump-sharing among reflective optical amplifiers30 Jun 2026US 12,671,224 B2II-Vi Delaware, Inc.
- Optical fiber raw material composition, optical fiber, and optical fiber product19 May 2026US 12,633,715 B2Huawei Technologies Co., Ltd.
- Gain equalization in C+L erbium-doped fiber amplifiers7 Apr 2026US 12,597,752 B2Subcom, LLC
- Full-band, high-power optical amplifier10 Mar 2026US 12,573,802 B2Lumentum Operations LLC
- Gain equalization in c+l erbium-doped fiber amplifiers9 Jul 2026US 2026/0196795 A1Subcom, LLC
- Raman-edfa hybrid amplifier for extended l band amplification5 Mar 2026US 2026/0066603 A1II-Vi Delaware, Inc.
- Raman amplification system, raman amplification method, and raman amplifier5 Mar 2026US 2026/0066608 A11FINITY Inc.
- Optical Fiber, Optical Fiber Preparation Method, and Optical Fiber Amplifier9 Oct 2025US 2025/0316945 A1Huawei Technologies Co., Ltd.
- Multi-core fiber amplifier and optical amplification method4 Sep 2025US 2025/0279623 A1NEC Corporation
Most cited
By later US patents
- High-energy eye-safe pulsed fiber amplifiers and sources operating in erbium's L-band146US 7,872,794 B1Lockheed Martin Corporation · 2011
- Optical amplification apparatus utilizing Raman amplification and controlling method thereof76US 6,388,801 B1Fujitsu Limited · 2002
- Ultra-wide bandwidth fiber based optical amplifier66US 6,307,668 B1Optigain, Inc. · 2001
- Fiber lasers66US 7,778,290 B2Elbit Systems Electro-Optics Elop Ltd. · 2010
- Noise figure in optical amplifiers with a split-band architecture50US 6,049,418 ALucent Technologies Inc. · 2000