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- Chung, Il-Sug
- Nano-Optoelectronics Lab.
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1060-nm Tunable Monolithic High Index Contrast Subwavelength Grating VCSEL
- Author(s)
- Ansbaek, Thor, Chung, Il-Sug, Semenova, Elizaveta S., Yvind, Kresten
- Issued Date
- 2013-02
- Citation
- IEEE PHOTONICS TECHNOLOGY LETTERS, v.25, no.4, pp.365 - 367
- Abstract
- We present the first tunable vertical-cavity surface-emitting laser (VCSEL) where the top distributed Bragg reflector has been completely substituted by an air-cladded high-index-contrast subwavelength grating (HCG) mirror. In this way, an extended cavity design can be realized by reducing the reflection at the semiconductor-air interface using an anti-reflective coating (ARC). We demonstrate how the ARC can be integrated in a monolithic structure by oxidizing AlGaAs with high Al-content. The HCG VCSEL has the potential to achieve polarization stable single-mode output with high tuning efficiency. The HCG VCSEL shows a total tuning range of 16 nm around an emission wavelength of 1060 nm with 1-mW output power.
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- ISSN
- 1041-1135
- Keyword (Author)
- III-V semiconductor materials, microelectro-mechanical systems, semiconductor lasers, vertical cavity surface emitting lasers
- Keyword
- LASERS
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