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Updated: Jul 15, 2026
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Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
Published on: February 25, 2017
Electrically pumped edge-emitting photonic crystal lasers with angled facets
Lin Zhu1, Guy A Derose, Axel Scherer
1Department of Electrical Engineering, California, Institute of Technology, Pasadena, California 91125, USA. linz@caltech.edu
Optics Letters
|April 19, 2007
Summary
We developed new InGaAsP/InP photonic crystal lasers that emit light from the edge. These lasers allow precise wavelength tuning by adjusting the crystal
Area of Science:
- Semiconductor Lasers
- Photonic Crystals
- Optoelectronics
Background:
- Two-dimensional photonic crystals offer unique optical properties.
- Controlling optical modes in edge-emitting lasers is crucial for device performance.
Purpose of the Study:
- To demonstrate electrically pumped, large-area edge-emitting InGaAsP/InP two-dimensional photonic crystal lasers.
- To investigate modal selection mechanisms and wavelength tuning capabilities.
Main Methods:
- Fabrication of InGaAsP/InP wafer using a weak index perturbation surface photonic crystal structure.
- Electrically pumping the device at room temperature.
- Analysis of laser spectra to determine modal selection and wavelength tuning.
Main Results:
- Successful demonstration of room-temperature, edge-emitting operation.
- Modal selection confirmed to be governed by Bragg resonance conditions in both longitudinal and transverse directions.
- Lithographic tuning of lasing wavelength by adjusting photonic crystal lattice constants.
Conclusions:
- The developed photonic crystal laser structure enables effective control of optical modes.
- Precise wavelength tuning is achievable through lithographic modification of lattice constants.
- A fine lasing wavelength tuning sensitivity of 0.08 was demonstrated.
