G02F 1/397
Amplification of light by wave mixing involving an interference pattern
Official title: {Amplification of light by wave mixing involving an interference pattern, e.g. using photorefractive material}
G02F1/397 (Amplification of light by wave mixing involving an interference pattern) appears on 22 US grants and 16 published applications in this corpus.
Search patents in G02F- Granted patents
- 22
- Published applications
- 16
- Assignees
- 30
- Inventors
- 68
- Latest grant
- 8 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 1 |
| 2017 | 1 | 1 |
| 2018 | 2 | 0 |
| 2019 | 0 | 2 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 2 | 3 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical parametric oscillator system8 Jul 2025US 12,353,113 B2Heriot-Watt University
- High-brightness quantum source based on multi-wavelength combination via arrayed Type-0 ppKTP crystal and method of generating entangled photon pairs31 Oct 2023US 11,803,098 B2Agency for Defense Development
- Light conversion systems, methods, and devices23 May 2023US 11,656,529 B2Goodrich Lighting Systems GmbH
- Holey optical device5 May 2020US 10,641,930 B2Purdue Research Foundation
- Generation device and generation method of terahertz waves with orbital angular momentum21 Jan 2020US 10,541,507 B2China Communication Technology Co., Ltd.
- Detecting Electromagnetic Radiation with Improved Signal-to-Noise16 Jul 2026US 2026/0202713 A1
- Optical Parametric Oscillator System1 Feb 2024US 2024/0036435 A1Heriot-Watt University
- High-brightness quantum source based on multi-wavelength combination via arrayed type-0 ppktp crystal and method of generating entangled photon pairs5 Oct 2023US 2023/0314900 A1Agency for Defense Development
- Nonlinear polarization filtering method, device, and application apparatus21 Sep 2023US 2023/0296911 A1Chongqing Huapu Intelligent Equipment Co., Ltd.
- Light conversion systems, methods, and devices23 Feb 2023US 2023/0056431 A1B/E Aerospace, Inc.
Most cited
By later US patents
- Polarization-insensitive optical four-photon mixer with orthogonally-polarized pump signals61US 5,386,314 AAT&T Corp. · 1995
- Device for coherent addition of laser beams44US 5,121,400 AThomson-CSF · 1992
- Device for the amplification of light-sensitive43US 4,847,521 AThomson-CSF · 1989
- Apparatus and method for optical energy amplification using two-beam coupling31US 5,373,526 AHughes Aircraft Company · 1994
- Hybrid laser power combining and beam cleanup system using nonlinear and adaptive optical wavefront compensation25US 5,717,516 AHughes Electronics Corporation · 1998