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Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
Published on: February 25, 2017
High-peak-power efficient edge-emitting photonic crystal nanocavity lasers
Ling Lu1, Adam Mock, Eui Hyun Hwang
1Department of Electrical Engineering-Electrophysics, University of Southern California, Los Angeles, California 90089, USA. lingl@usc.edu
Optics Letters
|September 3, 2009
Summary
Record edge-emitted peak power was achieved from two-dimensional photonic crystal nanocavity lasers at room temperature. These advancements in laser technology pave the way for more efficient optical devices.
Area of Science:
- Optics and Photonics
- Semiconductor Lasers
- Nanotechnology
Background:
- Photonic crystal nanocavity lasers offer unique light confinement properties.
- Achieving high power and efficiency in these devices is crucial for practical applications.
- Previous research has explored various designs for enhanced laser performance.
Purpose of the Study:
- To report record-high edge-emitted peak power from L3 and finite-waveguide 2D photonic crystal nanocavity quantum well membrane lasers.
- To investigate the performance characteristics, including peak power and quantum differential efficiency, at room temperature.
- To identify limitations affecting device performance, such as free-space collection efficiency.
Main Methods:
- Fabrication and characterization of L3 and finite-waveguide 2D photonic crystal nanocavity quantum well membrane lasers.
- Room temperature operation and single-mode emission measurements.
- Analysis of edge-emitted peak power and quantum differential efficiency.
Main Results:
- Record-high edge-emitted peak power achieved from both L3 (230 microW) and finite-waveguide (540 microW) lasers.
- High quantum differential efficiencies of 11% (L3) and 27% (finite-waveguide) were recorded.
- Performance was found to be limited by free-space collection efficiencies.
Conclusions:
- L3 and finite-waveguide 2D photonic crystal nanocavity lasers demonstrate record-breaking edge-emitted power at room temperature.
- The demonstrated efficiencies highlight the potential of these laser structures.
- Improving free-space collection efficiency is key to further enhancing the output power of these devices.
