Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Mervi Koskinen"'
Autor:
Topi Uusitalo, Heikki Virtanen, Jukka Viheriälä, Jarno Reuna, Antti T. Aho, Mircea Guina, Mervi Koskinen
Publikováno v:
High-Power Diode Laser Technology XVIII.
We report on the development of high peak-power laser diodes emitting in the 1.5 µm wavelength band. Two design approaches, broad-area laser diodes and tapered laser diodes, are described, both with integrated wavelength locking using distributed Br
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23e11f6a60982ece47e94269b1f646f7
https://doi.org/10.1117/12.2542095
https://doi.org/10.1117/12.2542095
Autor:
Ville-Markus Korpijärvi, Mervi Koskinen, Heikki Virtanen, Mihail Dumitrescu, Topi Uusitalo, Antti T. Aho, Jukka Viheriälä, Mircea Guina
Publikováno v:
IEEE Photonics Technology Letters. 29:114-117
We report narrow-linewidth 1180-nm GaInNAs/GaAs distributed Bragg reflector lasers reaching up to ~500-mW continuous-wave output power at room temperature. The lasers employ surface gratings, which avoided the problematic regrowth and enabled a high
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::584aa4897a736e873c3ec020ddb3f3aa
https://doi.org/10.1109/lpt.2016.2629512
https://doi.org/10.1109/lpt.2016.2629512
Autor:
Mika Valden, Mervi Koskinen, Antti T. Aho, Ville-Markus Korpijärvi, Heikki Virtanen, Mathias Christensen, Mircea Guina, Jukka Viheriälä, Topi Uusitalo, Kimmo Lahtonen
Publikováno v:
Aho, A T, Viheriala, J, Korpijarvi, V-M, Koskinen, M, Virtanen, H, Christensen, M, Uusitalo, T, Lahtonen, K, Valden, M & Guina, M 2017, ' High-Power 1180-nm GaInNAs DBR Laser Diodes ', I E E E Photonics Technology Letters, vol. 29, no. 23, pp. 2023-2026 . https://doi.org/10.1109/LPT.2017.2760038
We report high-power 1180-nm GaInNAs distributed Bragg reflector laser diodes with and without a tapered amplifying section. The untapered and tapered components reached room temperature output powers of 655 mW and 4.04 W, respectively. The diodes ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::133cb1368eec228fe1467b460e0265d1
https://trepo.tuni.fi/handle/10024/126310
https://trepo.tuni.fi/handle/10024/126310
Autor:
Antti T. Aho, Heikki Virtanen, Mervi Koskinen, Jukka Viheriälä, Mircea Guina, Michael Dumitrescu
Publikováno v:
High-Power Diode Laser Technology XV
We report state-of-the-art results for 1180nm (narrow linewidth) laser diodes based on GaInNAs quantum wells and show results for ridge waveguide DBR laser diode including its reliability tests. Manuscript demonstrates 500 mW output power in continuo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21255083d8f026b33db913c1230480c1
Publikováno v:
Optics letters. 41(4)
We report a single-mode 1180 nm distributed Bragg reflector (DBR) laser diode with a high output power of 340 mW. For the fabrication, we employed novel nanoimprint lithography that ensures cost-effective, large-area, conformal patterning and does no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60d570cc93473683ace6ca3bb23b8f94
https://pubmed.ncbi.nlm.nih.gov/26872156
https://pubmed.ncbi.nlm.nih.gov/26872156
Publikováno v:
Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XX
Single-mode superluminescent diodes operating at 2 μm wavelength are reported. The structures are based on GaSb material systems and were fabricated by molecular beam epitaxy. Several waveguide designs have been implemented. A continuous-wave output
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::389402ccda003c19e5059de1d9aff857
https://trepo.tuni.fi/handle/10024/128957
https://trepo.tuni.fi/handle/10024/128957
Publikováno v:
Applied Physics Letters. 68:967-969
We report on a monolithic microvacuum GaAs/AlGaAs photodetector which is suggested to form a basic building block for a novel large‐area and low noise detector. The rudimentary structure consists of a Cs‐coated p‐GaAs photon absorption layer, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae7561442b53177169d8b4dc6603b609
https://doi.org/10.1063/1.116114
https://doi.org/10.1063/1.116114
Publikováno v:
Scopus-Elsevier
We report the highest power narrow spectrum 1180 nm distributed Bragg reflector (DBR) laser diodes prepared using GaInNAs quantum wells as a gain material. In particular, we demonstrate a CW output power up to 560 mW from Ridge Waveguide (RWG)-DBR la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf077c1ccf9da8363c7bb21772981279
http://www.scopus.com/inward/record.url?eid=2-s2.0-85039920609&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-85039920609&partnerID=MN8TOARS
Autor:
Soile Talmila, Jukka Petteri Viheriälä, Nouman Zia, Riku Antti Koskinen, Mervi Koskinen, Mircea Guina
Publikováno v:
Tampere University
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::2202fd6512dfe2caed7038e6d731adf5
https://researchportal.tuni.fi/en/publications/80e28a2e-0aa8-4dd0-8065-5bbd0b70ec93
https://researchportal.tuni.fi/en/publications/80e28a2e-0aa8-4dd0-8065-5bbd0b70ec93
Autor:
Soile Talmila, Jukka Petteri Viheriälä, Nouman Zia, Riku Antti Koskinen, Mervi Koskinen, Mircea Guina
Publikováno v:
Tampere University
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::dba0a0e40b074d94d9baaf4144d9bc77
https://researchportal.tuni.fi/en/publications/45b81cc3-e682-4f6d-8545-5a97a03f244a
https://researchportal.tuni.fi/en/publications/45b81cc3-e682-4f6d-8545-5a97a03f244a