| Autor: |
Jiuyuan Zhu, Dun Qiao, Adam Jones, Bo Zhang, Kang Li, Nigel Copner |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Optics Express. 31:3970 |
| ISSN: |
1094-4087 |
| DOI: |
10.1364/oe.478580 |
| Popis: |
A novel mode-hop-free (MHF) tunable external cavity diode laser (ECDL) is demonstrated without mechanical pivot-point tuning. By corotating a periscope with an etalon and a narrow band pass (NBP) filter inside an external cavity, the cavity single longitudinal mode selection can be maintained, and continuous tuning can be achieved with optimal synchronization. A MHF continuous tuning range of 1.7 THz has been achieved with a semiconductor gain chip at the wavelength of 652 ± 2 nm experimentally, and the theoretical tuning range can reach over 4.8 THz. The laser linewidth is estimated to be less than 1 MHz (FWHM) by a scanning Fabry-Perot (F-P) and a Michelson interferometer. 1 mW output power with variation of less than 10% in the tuning region of roughly 1.7 THz has been demonstrated. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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