G02F 1/0156
Using free carrier absorption
Official title: {using free carrier absorption}
G02F1/0156 (Using free carrier absorption) appears on 47 US grants and 43 published applications in this corpus.
Search patents in G02F- Granted patents
- 47
- Published applications
- 43
- Assignees
- 36
- Inventors
- 109
- Latest grant
- 25 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 1 |
| 2008 | 2 | 0 |
| 2009 | 2 | 3 |
| 2010 | 2 | 3 |
| 2011 | 2 | 2 |
| 2012 | 1 | 2 |
| 2013 | 2 | 2 |
| 2014 | 1 | 1 |
| 2015 | 2 | 3 |
| 2016 | 2 | 3 |
| 2017 | 5 | 2 |
| 2018 | 3 | 3 |
| 2019 | 3 | 3 |
| 2020 | 1 | 4 |
| 2021 | 3 | 1 |
| 2022 | 3 | 4 |
| 2023 | 2 | 2 |
| 2024 | 2 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Tuning method for active metamaterials using IGZO Schottky diodes25 Feb 2025US 12,237,427 B2Shan Dong University
- Silicon-based modulator with different transition zone thicknesses15 Oct 2024US 12,117,678 B2Ciena Corporation
- Optical modulator7 May 2024US 11,977,282 B2Nippon Telegraph and Telephone Corporation
- Silicon-based modulator with optimized doping profile20 Jun 2023US 11,681,168 B2Ciena Corporation
- Optical pulse clipper for lidar7 Mar 2023US 11,598,848 B2Huawei Technologies Co., Ltd.
- Q-switch co2 laser23 Nov 2023US 2023/0378714 A1Alltec Angewandte Laserlicht Technologie GmbH
- Silicon-based modulator with different transition zone thicknesses28 Sep 2023US 2023/0305323 A1Ciena Corporation
- Optical Modulator10 Nov 2022US 2022/0357604 A1Nippon Telegraph and Telephone Corporation
- Tuning method for active metamaterials using IGZO Schottky diodes1 Sep 2022US 2022/0278241 A1Shan Dong University
- Silicon-based modulator with optimized doping profile18 Aug 2022US 2022/0260864 A1Ciena Corporation
Most cited
By later US patents
- Spatial light modulator114US 4,705,361 ATexas Instruments Incorporated · 1987
- Optical XOR logic gate28US 8,031,985 B2University of Washington · 2011
- Single quantum well optical modulator18US 4,872,744 ABell Communications Research, Inc. · 1989
- Light absorption modulator and integrated semiconductor laser and modulator14US 5,771,257 AMitsubishi Denki Kabushiki Kaisha · 1998
- Article comprising means for modulating the optical transparency of a semiconductor body, and method of operating the article12US 5,300,789 AAT&T Bell Laboratories · 1994