Antenna coupled photonic wire lasers
Abstract
Slope efficiency (SE) is an important performance metric for lasers. In conventional semiconductor lasers, SE can be optimized by careful designs of the facet (or the modulation for DFB lasers) dimension and surface. However, photonic wire lasers intrinsically suffer low SE due to their deep sub-wavelength emitting facets. Inspired by microwave engineering techniques, we show a novel method to extract power from wire lasers using monolithically integrated antennas. These integrated antennas significantly increase the effective radiation area, and consequently enhance the power extraction efficiency. When applied to wire lasers at THz frequency, we achieved the highest single-side slope efficiency (~450 mW/A) in pulsed mode for DFB lasers at 4 THz and a ~4x increase in output power at 3 THz compared with a similar structure without antennas. This work demonstrates the versatility of incorporating microwave engineering techniques into laser designs, enabling significant performance enhancements.
- Authors:
-
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Long Wave Photonics LLC, Mountain View, CA (United States)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1182968
- Report Number(s):
- SAND2014-15928J
Journal ID: ISSN 1094-4087; OPEXFF; 533364
- Grant/Contract Number:
- AC04-94AL85000
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Optics Express
- Additional Journal Information:
- Journal Volume: 23; Journal Issue: 13; Journal ID: ISSN 1094-4087
- Publisher:
- Optical Society of America (OSA)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Kao, Tsung-Kao, Cai, Xiaowei, Lee, Alan W. M., Reno, John L., and Hu, Qing. Antenna coupled photonic wire lasers. United States: N. p., 2015.
Web. doi:10.1364/OE.23.017091.
Kao, Tsung-Kao, Cai, Xiaowei, Lee, Alan W. M., Reno, John L., & Hu, Qing. Antenna coupled photonic wire lasers. United States. https://doi.org/10.1364/OE.23.017091
Kao, Tsung-Kao, Cai, Xiaowei, Lee, Alan W. M., Reno, John L., and Hu, Qing. Mon .
"Antenna coupled photonic wire lasers". United States. https://doi.org/10.1364/OE.23.017091. https://www.osti.gov/servlets/purl/1182968.
@article{osti_1182968,
title = {Antenna coupled photonic wire lasers},
author = {Kao, Tsung-Kao and Cai, Xiaowei and Lee, Alan W. M. and Reno, John L. and Hu, Qing},
abstractNote = {Slope efficiency (SE) is an important performance metric for lasers. In conventional semiconductor lasers, SE can be optimized by careful designs of the facet (or the modulation for DFB lasers) dimension and surface. However, photonic wire lasers intrinsically suffer low SE due to their deep sub-wavelength emitting facets. Inspired by microwave engineering techniques, we show a novel method to extract power from wire lasers using monolithically integrated antennas. These integrated antennas significantly increase the effective radiation area, and consequently enhance the power extraction efficiency. When applied to wire lasers at THz frequency, we achieved the highest single-side slope efficiency (~450 mW/A) in pulsed mode for DFB lasers at 4 THz and a ~4x increase in output power at 3 THz compared with a similar structure without antennas. This work demonstrates the versatility of incorporating microwave engineering techniques into laser designs, enabling significant performance enhancements.},
doi = {10.1364/OE.23.017091},
journal = {Optics Express},
number = 13,
volume = 23,
place = {United States},
year = {Mon Jun 22 00:00:00 EDT 2015},
month = {Mon Jun 22 00:00:00 EDT 2015}
}
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