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All-optical tunability of holographically multiplexed organic distributed feedback lasers
Optics Express
|May 28, 2009
Summary
Researchers developed new organic lasers with multiple gratings. These lasers allow for fast, high-speed switching between different emission wavelengths by controlling light polarization.
Area of Science:
- Organic electronics
- Photonics and optical devices
Background:
- Distributed feedback (DFB) lasers are crucial for tunable light sources.
- Organic thin films offer potential for low-cost, flexible photonic devices.
Purpose of the Study:
- To fabricate and characterize optically pumped multiple grating DFB lasers in dye-doped organic thin films.
- To demonstrate wavelength switching capabilities using polarization sensitivity.
Main Methods:
- Fabrication of multiplexed grating DFB laser structures inscribed at different angles.
- Optical pumping and characterization of laser emission.
- Exploitation of polarization sensitivity for wavelength control.
Main Results:
- Successful fabrication of multiple DFB laser structures with unique emission wavelengths.
- Demonstration of optically pumped laser operation in dye-doped organic films.
- Achieved simple and high-speed switching of emission wavelengths by controlling pump light polarization.
Conclusions:
- Optically pumped multiple grating DFB lasers in organic thin films are feasible.
- Polarization-sensitive wavelength switching offers a novel approach for tunable organic lasers.
- This technology has potential applications in optical communication and sensing.
