High-Power 1.5-$\mu$ m Broad Area Laser Diodes Wavelength Stabilized by Surface Gratings
| Autor: | Jukka Viheriälä, Antti T. Aho, Topi Uusitalo, Heikki Virtanen, Mircea Guina |
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| Přispěvatelé: | Tampere University, Photonics, Research group: ORC |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
02 engineering and technology 7. Clean energy 01 natural sciences 114 Physical sciences Nanoimprint lithography law.invention 010309 optics Narrowband law 0103 physical sciences Spectral width Electrical and Electronic Engineering Diode business.industry 221 Nanotechnology 021001 nanoscience & nanotechnology Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Wavelength Full width at half maximum Lidar 216 Materials engineering Optoelectronics 0210 nano-technology business |
| Zdroj: | IEEE Photonics Technology Letters |
| ISSN: | 1041-1135 |
| DOI: | 10.1109/lpt.2018.2870304 |
| Popis: | Wavelength stabilization against temperature variation of high-power broad area 1.5 μm InGaAsP/InP laser diodes is demonstrated by employing surface gratings. The development targets application in eye-safe automotive LIDAR systems, which would benefit from deploying narrow band receiver filters to block ambient solar radiation for improved signal-to-noise ratio. The surface grating is monolithically integrated on the laser chip using nanoimprint lithography. The peak power of the lasers exceeded 6 W in pulsed mode, for a FWHM spectral width of 0.3 nm, and a peak wavelength drift of only 0.1 nm/°C. The wavelength shift with temperature is reduced by five times compared to broad area high-power Fabry-Perot laser diodes typically employed in LIDAR systems. publishedVersion |
| Databáze: | OpenAIRE |
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