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Compact solid-state organic laser with fine and broadband wavelength tunability
Optics Express
|December 28, 2019
Summary
A new organic dye-doped polymer laser offers tunable wavelength emission. This vertical cavity surface-emitting laser uses an electrically driven component for precise and stable wavelength control, promising compact laser designs.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Organic dye-doped polymer lasers are explored for tunable light sources.
- Vertical cavity surface-emitting lasers (VCSELs) offer compact and efficient laser emission.
Purpose of the Study:
- To propose a novel wavelength-tuning mechanism for organic dye-doped polymer lasers.
- To demonstrate a compact and electrically tunable VCSEL device.
Main Methods:
- Fabrication of a VCSEL using distributed Bragg reflectors (DBRs).
- Incorporation of a dye-doped polymer thin film and a polydimethylsiloxane film.
- Electrical driving of one DBR to modulate cavity length for wavelength tuning.
- Optical excitation and refractive index matching using immersion oil.
Main Results:
- Achieved tunable lasing operation with high stability.
- Demonstrated precise and electrically driven wavelength tunability.
- The device mechanism is simple, enabling compact laser design.
Conclusions:
- The proposed device offers a promising approach for compact lasers with wide, precise, and electrically driven wavelength tunability.
- The novel tuning mechanism in organic dye-doped polymer VCSELs is effective.
- This technology has potential applications in various fields requiring tunable laser sources.
