H04B 10/673
Using an optical preamplifier
Official title: {using an optical preamplifier}
H04B10/673 (Using an optical preamplifier) appears on 54 US grants and 46 published applications in this corpus.
Search patents in H04B- Granted patents
- 54
- Published applications
- 46
- Assignees
- 40
- Inventors
- 129
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 2 |
| 2003 | 1 | 4 |
| 2004 | 2 | 1 |
| 2005 | 2 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 3 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 1 | 2 |
| 2012 | 1 | 5 |
| 2013 | 0 | 2 |
| 2014 | 4 | 0 |
| 2015 | 3 | 4 |
| 2016 | 2 | 3 |
| 2017 | 4 | 2 |
| 2018 | 2 | 1 |
| 2019 | 2 | 4 |
| 2020 | 4 | 3 |
| 2021 | 3 | 3 |
| 2022 | 1 | 0 |
| 2023 | 2 | 3 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical module having electrically-connected substrate10 Mar 2026US 12,571,969 B2Hisense Broadband Multimedia Technologies Co., Ltd.
- Transimpedance amplifier18 Mar 2025US 12,255,593 B2Semtech Corporation
- Photonic integrated circuit-based optical communication optimized for receive aperture amplitude and phase modulations1 Aug 2023US 11,716,141 B1Raytheon Company
- Fiber amplifier and gain adjustment method for fiber amplifier6 Jun 2023US 11,671,179 B2Huawei Technologies Co., Ltd.
- Optical receiving device9 Aug 2022US 11,411,655 B2Molex Incorporated
- Optical communications system with semiconductor optical amplifier for link loss correction17 Apr 2025US 2025/0125878 A1X Development LLC
- Optical device and optical receiving device28 Sep 2023US 2023/0305328 A1Fujitsu Optical Components Limited
- Transimpedance amplifier27 Jul 2023US 2023/0238930 A1Semtech Corporation
- Optical module22 Jun 2023US 2023/0194802 A1Hisense Broadband Multimedia Technologies Co., Ltd.
- Fiber amplifier and gain adjustment method for fiber amplifier9 Dec 2021US 2021/0384986 A1Huawei Technologies Co., Ltd.
Most cited
By later US patents
- Receiver for optical digital transmission system45US 5,854,704 AAlcatel Submarine Networks · 1998
- Polarization insensitive optical communication device utilizing optical preamplification29US 4,900,917 AAmerican Telephone and Telegraph Company, AT&T Bell Laboratories · 1990
- Optical demultiplexer with multi-channel power control and tilt compensation28US 6,941,079 B1Cisco Technology, Inc. · 2005
- Light signal reception apparatus having an improved light surge eliminating function24US 5,701,195 AFujitsu Limited · 1997
- Enhanced feed forward optical frequency/phase demodulator20US 6,452,714 B1TRW Inc. · 2002