| Download | - View final version: Single-mode interband cascade laser based on V-coupled cavity with 210 nm wavelength tuning range near 3 µm (PDF, 4.0 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1364/OE.504209 |
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| Author | Search for: Gong, Jingli; Search for: Wang, Zhanyi; Search for: He, Jian-JunORCID identifier: https://orcid.org/0000-0002-3297-389X; Search for: Li, Lu; Search for: Yang, Rui Q.ORCID identifier: https://orcid.org/0000-0002-4504-4897; Search for: Gupta, James A.1 |
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| Affiliation | - National Research Council Canada. Advanced Electronics and Photonics
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| Funder | Search for: National Natural Science Foundation of China; Search for: National Science Foundation; Search for: The Oklahoma Center for the Advancement of Science and Technology |
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| Format | Text, Article |
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| Subject | semiconductor lasers; quantum wells; gallium; heat sinks |
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| Abstract | Interband cascade lasers (ICLs) are efficient and compact mid-infrared (3-5 µm) light sources with many applications. By enhancing the coupling coefficient and using a type-I ICL wafer, single-mode ICLs were demonstrated based on V-coupled cavity with significantly extended tuning range and with a side mode suppression ratio (SMSR) exceeding 35 dB in continuous wave operation near 3 µm. A V-coupled cavity ICL exhibited a wavelength tuning up to 67 nm at a fixed temperature, and the total tuning range exceeds 210 nm when the heat sink temperature is adjusted from 80 to 180 K. The realization of single-mode in such a wide temperature range with a tuning range exceeding 210 nm verified the advantage of V-coupled cavity ICLs for effective detection of multiple gas species. This is very different from the conventional distributed feedback (DFB) laser where the single-mode operation is restricted to a narrow temperature range, in which the match between the gain peak and the DFB grating period determined wavelength is required. Another V-coupled cavity ICL is tuned over 120 nm from 2997.56 nm to 3117.50 nm with the heat-sink temperature varied from 210 K to 240 K, over 100 K higher than the previously reported maximum operating temperature for V-coupled cavity ICLs. |
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| Publication date | 2023-10-30 |
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| Publisher | Optica Publishing Group |
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| Licence | |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 39a7781c-9804-4164-a45d-a94fc6971e55 |
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| Record created | 2024-07-30 |
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| Record modified | 2024-07-30 |
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