G01M 11/337
By measuring polarization dependent loss [pdl]
Official title: {by measuring polarization dependent loss [PDL]}
G01M11/337 (By measuring polarization dependent loss [pdl]) appears on 48 US grants and 53 published applications in this corpus.
Search patents in G01M- Granted patents
- 48
- Published applications
- 53
- Assignees
- 45
- Inventors
- 127
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 1 |
| 2003 | 3 | 9 |
| 2004 | 4 | 6 |
| 2005 | 9 | 3 |
| 2006 | 1 | 5 |
| 2007 | 1 | 3 |
| 2008 | 6 | 1 |
| 2009 | 1 | 5 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 2 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 1 | 1 |
| 2020 | 1 | 2 |
| 2021 | 2 | 2 |
| 2022 | 3 | 3 |
| 2023 | 1 | 0 |
| 2024 | 1 | 2 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Receiver-based fiber-optic link monitor23 Sep 2025US 12,425,104 B2Nokia Solutions and Networks Oy
- Techniques for providing a swept wavelength (SW) measurement for acquiring polarization dependent loss (PDL) in a single scan16 Jul 2024US 12,038,346 B2Viavi Solutions Inc.
- Polarization dependent loss measurement9 May 2023US 11,644,381 B2EXFO Optics, SAS
- Polarization dependent loss (PDL) compensation systems21 Jun 2022US 11,368,219 B2Raytheon Applied Signal Technology, Inc.
- Polarization-dependent loss determining method, detection system, and optical signal transmission structure24 May 2022US 11,343,010 B2Huawei Technologies Co., Ltd.
- Polarity, insertion loss and return loss tester for multi-core optical fiber15 Jan 2026US 2026/0016372 A1Shenzhen Weidu Technology Co., Ltd.
- On-silicon integrated test structure for the characterization of the pdl of a fiber/silicon optical coupler with a two-dimensional diffraction grating26 Jun 2025US 2025/0207998 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Methods and systems for characterization of polarization-dependent loss or gain in optical links and components22 Aug 2024US 2024/0283531 A1
- Receiver-based fiber-optic link monitor4 Jan 2024US 2024/0007187 A1Nokia Solutions and Networks Oy
- Techniques for providing a swept wavelength (sw) measurement for acquiring polarization dependent loss (pdl) in a single scan8 Dec 2022US 2022/0390322 A1Viavi Solutions Inc.
Most cited
By later US patents
- Optical system for ellipsometry utilizing a circularly polarized probe beam32US 5,619,325 AAdvantest Corporation · 1997
- Method and apparatus for measuring the polarization characteristics of optical transmission medium30US 5,965,874 AFurukawa Electric Co., Ltd. · 1999
- System and method for measuring polarization dependent loss27US 5,371,597 AAT&T Corp. · 1994
- Multipurpose testing system for optical cross connect devices19US 6,959,126 B1Calient Networks, Inc. · 2005
- Polarization diversity detection without a polarizing beam splitter16US 7,379,168 B2Luna Innovations Incorporated · 2008