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Updated: Jan 26, 2026
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Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications
Published on: June 2, 2017
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Operating Characteristics of High-Order Distributed Feedback Polymer Lasers.
Puxi Zhou1, Lianze Niu2, Anwer Hayat3
1Department of Electrical Engineering and Computer Science, Samueli School of Engineering, University of California Irvine, Irvine, CA 92697, USA. puxiz@uci.edu.
Polymers
|April 10, 2019
Summary
High-order distributed-feedback (DFB) polymer lasers offer advantages like multiple lasing directions and high manufacturing tolerances. Optimizing structural parameters can mitigate performance decreases at higher feedback orders.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Distributed-feedback (DFB) lasers are crucial photonic devices.
- High-order DFB structures offer potential advantages over lower orders.
- Polymer gain media provide flexibility in laser fabrication.
Purpose of the Study:
- To comparatively investigate the performance of high-order DFB polymer lasers.
- To explore the impact of DFB order on laser characteristics.
- To identify methods for optimizing high-order DFB polymer laser performance.
Main Methods:
- Fabrication of nine laser cavities using spin-coating of gain polymer films.
- Utilizing interference lithography to create grating structures for DFB orders 2, 3, and 4.
- Comparative analysis of lasing performance, including threshold and slope efficiency.
Main Results:
- Low threshold lasing and high slope efficiency were achieved in high-order DFB polymer lasers.
- Performance benefits are attributed to large grating groove depth and gain layer thickness.
- Demonstrated ability to control lasing direction and achieve multiple-wavelength lasers.
Conclusions:
- High-order DFB polymer lasers exhibit significant advantages for photonic applications.
- Structural parameter control is key to overcoming performance limitations at higher feedback orders.
- This study highlights the potential of high-order DFB polymer lasers for advanced optical systems.
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