Temperature-Tunable Visible Laser Medium
Official patent title
Olive oil-tuned broadband conjugated polymer laser medium
Arabic title: وسط ليزري من بوليمر مترافق عريض النطاق مضبوط بزيت الزيتون
Invention
Invention
Problem
Existing tunable laser media may be expensive, have limited tuning ranges, exhibit stability constraints, or rely on toxic or carcinogenic solvents.
Why it matters
A visible-range laser medium whose output can be adjusted without replacing the active material could support more flexible photonic instruments and research systems.
Approach
The technology dissolves the conjugated polymer Poly(FV-co-MEHPV) in an olive-oil compound under heat and stirring. Changing the medium temperature adjusts its emission wavelength, and the publication describes operation in pulsed and continuous-wave modes.
Who may benefit
Potential beneficiaries include photonics researchers, laser-system developers, optical-instrument manufacturers, and engineering or medical research groups evaluating tunable visible light sources.
Potential value
The disclosed medium pairs temperature-controlled visible-wavelength tuning with a liquid olive-oil host and a defined conjugated polymer, providing one material platform for multiple output wavelengths.
Background
Background
Tunable laser media are useful when an instrument must access multiple wavelengths, but conventional options can involve expensive crystals, narrow tuning windows, or dyes with physicochemical stability limitations. Conjugated polymers offer strong optical absorption and can be structurally adjusted, yet their performance depends on the surrounding medium and operating conditions. The publication proposes olive oil as the host for Poly(FV-co-MEHPV), with temperature used as the control variable for changing the visible emission wavelength.
Technology overview
Technology overview
Poly(FV-co-MEHPV) is dissolved in an olive-oil compound using heat and continuous stirring to form a homogeneous laser medium. A 355 nm excitation source is described for testing. The reported spectra show temperature-dependent output across the visible region, with the publication describing reversible tuning roughly within 500–700 nm and operation in both pulsed and continuous-wave modes under the stated experimental conditions.
Potential applications
Potential applications
- Tunable visible-light sources for photonics and laser research.
- Optical instrumentation that benefits from changing output wavelength through temperature control.
- Experimental laser systems for engineering studies using pulsed or continuous-wave operation.
- Evaluation in medical or sensing research where adjustable visible wavelengths are required.
Evidence-supported advantages
Evidence-supported advantages
- The output wavelength is described as reversibly adjustable by changing the medium temperature.
- One polymer-and-oil medium covers multiple visible output wavelengths.
- The publication describes both pulsed and continuous-wave operating modes.
- Preparation uses dissolution under heat and continuous stirring.
- Olive oil replaces the toxic or carcinogenic solvents discussed for some conventional laser media.
Development stage
Development stage
Laboratory preparation and optical testing, including absorption, fluorescence, and laser spectra, are described; commercialization was not established.
Commercial opportunity
Commercial opportunity
The medium could be evaluated with laser and optical-instrument companies as a tunable materials platform. Further work would need to establish output power, lifetime, thermal cycling stability, packaging, safety, and reproducible manufacture for a defined device application. Cost benchmarking would also be needed.
Patent classifications
Patent classifications
WIPO IPC
- H01S3/213Devices using light amplification by stimulated emission of radiation [LASER] to amplify or generate light; stimulated-emission devices for non-optical electromagnetic radiation
CPC
- H01S3/168Devices using light amplification by stimulated emission of radiation [LASER] to amplify or generate light; stimulated-emission devices for non-optical electromagnetic radiation
- H01S3/213Devices using light amplification by stimulated emission of radiation [LASER] to amplify or generate light; stimulated-emission devices for non-optical electromagnetic radiation
- H01S2301/02Devices using light amplification by stimulated emission of radiation [LASER] to amplify or generate light; stimulated-emission devices for non-optical electromagnetic radiation
- H01S3/0092Devices using light amplification by stimulated emission of radiation [LASER] to amplify or generate light; stimulated-emission devices for non-optical electromagnetic radiation
- H01S3/109Devices using light amplification by stimulated emission of radiation [LASER] to amplify or generate light; stimulated-emission devices for non-optical electromagnetic radiation
- H01S3/1121Devices using light amplification by stimulated emission of radiation [LASER] to amplify or generate light; stimulated-emission devices for non-optical electromagnetic radiation
- H01S3/1611Devices using light amplification by stimulated emission of radiation [LASER] to amplify or generate light; stimulated-emission devices for non-optical electromagnetic radiation
- H01S3/1643Devices using light amplification by stimulated emission of radiation [LASER] to amplify or generate light; stimulated-emission devices for non-optical electromagnetic radiation
Inventors
Inventors
- First inventorHajo Idriss Mohammed Idriss
- InventorMohammed Khalil Mohammed Ali
- InventorOsamah Abdulrahman Aldaghri
- InventorKhalid Hassan Ibnaouf Ahmed
- InventorMoez Abdolfath Ibrahem Mohammed
Keywords
Keywords
- conjugated polymer
- olive oil
- tunable laser
- visible spectrum
- Poly(FV-co-MEHPV)
- thermal tuning
- pulsed laser
- continuous wave
Patent document and drawings
Patent document and drawings
The patent publication is mapped to this record. Patent drawings remain within that publication; no separately cleared public media package has been supplied.