Erbium-Doped Fibers Designed for Random Single-Frequency Lasers Operating in the Extended L-Band
The paper presents the results of developing Er-doped optical fibers for creating random single-frequency lasers in the wavelength range of 1570–1610 nm. The possibility of broadening the luminescence band of Er<sup>3+</sup> ions in silicate glasses in the long-wavelength region of the s...
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MDPI AG
2024-12-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/11/12/1175 |
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| author | Denis Lipatov Alexey Abramov Alexey Lobanov Denis Burmistrov Sergei Popov Dmitry Ryakhovsky Yuriy Chamorovskiy Alexey Bazakutsa Liudmila Iskhakova Olga Egorova Andrey Rybaltovsky |
| author_facet | Denis Lipatov Alexey Abramov Alexey Lobanov Denis Burmistrov Sergei Popov Dmitry Ryakhovsky Yuriy Chamorovskiy Alexey Bazakutsa Liudmila Iskhakova Olga Egorova Andrey Rybaltovsky |
| author_sort | Denis Lipatov |
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| description | The paper presents the results of developing Er-doped optical fibers for creating random single-frequency lasers in the wavelength range of 1570–1610 nm. The possibility of broadening the luminescence band of Er<sup>3+</sup> ions in silicate glasses in the long-wavelength region of the spectrum by introducing a high concentration of P<sub>2</sub>O<sub>5</sub>, as well as by additional doping with Sb<sub>2</sub>O<sub>3</sub>, is investigated. It is found that both approaches do not improve the dynamics of luminescence decay in the L-band. In addition, Er<sub>2</sub>O<sub>3</sub>-GeO<sub>2</sub>-Al<sub>2</sub>O<sub>3</sub>-SiO<sub>2</sub> and Er<sub>2</sub>O<sub>3</sub>-GeO<sub>2</sub>-Al<sub>2</sub>O<sub>3</sub>-P<sub>2</sub>O<sub>5</sub>-SiO<sub>2</sub> glasses were studied as the core material for L-band optical fibers. The developed fibers exhibited high photosensitivity and a high gain of 5 and 7.2 dB/m, respectively. In these fibers, homogeneous arrays of extended weakly reflecting Bragg gratings were recorded directly during the fiber drawing process. Samples of arrays 5 m long and with a narrow reflection maximum at ~1590 nm were used as the base for laser resonators. Narrow-band random laser generation in the wavelength region of 1590 nm was recorded for the first time. At a temperature of 295 K, the laser mode was strictly continuous wave and stable in terms of output power. The maximal power exceeded 16 mW with an efficiency of 16%. |
| format | Article |
| id | doaj-art-5b319ab4aec54260a0fe8961852b88cd |
| institution | DOAJ |
| issn | 2304-6732 |
| language | English |
| publishDate | 2024-12-01 |
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| series | Photonics |
| spelling | doaj-art-5b319ab4aec54260a0fe8961852b88cd2025-08-20T02:57:00ZengMDPI AGPhotonics2304-67322024-12-011112117510.3390/photonics11121175Erbium-Doped Fibers Designed for Random Single-Frequency Lasers Operating in the Extended L-BandDenis Lipatov0Alexey Abramov1Alexey Lobanov2Denis Burmistrov3Sergei Popov4Dmitry Ryakhovsky5Yuriy Chamorovskiy6Alexey Bazakutsa7Liudmila Iskhakova8Olga Egorova9Andrey Rybaltovsky10G. G. Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, 603951 Nizhny Novgorod, RussiaG. G. Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, 603951 Nizhny Novgorod, RussiaG. G. Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, 603951 Nizhny Novgorod, RussiaG. G. Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, 603951 Nizhny Novgorod, RussiaKotelnikov Institute of Radioengineering and Electronics (Fryazino Branch), Russian Academy of Sciences, 141190 Fryazino, RussiaKotelnikov Institute of Radioengineering and Electronics (Fryazino Branch), Russian Academy of Sciences, 141190 Fryazino, RussiaKotelnikov Institute of Radioengineering and Electronics (Fryazino Branch), Russian Academy of Sciences, 141190 Fryazino, RussiaKotelnikov Institute of Radioengineering and Electronics, Russian Academy of Sciences, 125009 Moscow, RussiaDianov Fiber Optics Research Center, 119333 Moscow, RussiaProkhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, RussiaDianov Fiber Optics Research Center, 119333 Moscow, RussiaThe paper presents the results of developing Er-doped optical fibers for creating random single-frequency lasers in the wavelength range of 1570–1610 nm. The possibility of broadening the luminescence band of Er<sup>3+</sup> ions in silicate glasses in the long-wavelength region of the spectrum by introducing a high concentration of P<sub>2</sub>O<sub>5</sub>, as well as by additional doping with Sb<sub>2</sub>O<sub>3</sub>, is investigated. It is found that both approaches do not improve the dynamics of luminescence decay in the L-band. In addition, Er<sub>2</sub>O<sub>3</sub>-GeO<sub>2</sub>-Al<sub>2</sub>O<sub>3</sub>-SiO<sub>2</sub> and Er<sub>2</sub>O<sub>3</sub>-GeO<sub>2</sub>-Al<sub>2</sub>O<sub>3</sub>-P<sub>2</sub>O<sub>5</sub>-SiO<sub>2</sub> glasses were studied as the core material for L-band optical fibers. The developed fibers exhibited high photosensitivity and a high gain of 5 and 7.2 dB/m, respectively. In these fibers, homogeneous arrays of extended weakly reflecting Bragg gratings were recorded directly during the fiber drawing process. Samples of arrays 5 m long and with a narrow reflection maximum at ~1590 nm were used as the base for laser resonators. Narrow-band random laser generation in the wavelength region of 1590 nm was recorded for the first time. At a temperature of 295 K, the laser mode was strictly continuous wave and stable in terms of output power. The maximal power exceeded 16 mW with an efficiency of 16%.https://www.mdpi.com/2304-6732/11/12/1175silicate glasserbium fiberphotosensitivitygainfiber Bragg gratingrandom fiber laser |
| spellingShingle | Denis Lipatov Alexey Abramov Alexey Lobanov Denis Burmistrov Sergei Popov Dmitry Ryakhovsky Yuriy Chamorovskiy Alexey Bazakutsa Liudmila Iskhakova Olga Egorova Andrey Rybaltovsky Erbium-Doped Fibers Designed for Random Single-Frequency Lasers Operating in the Extended L-Band Photonics silicate glass erbium fiber photosensitivity gain fiber Bragg grating random fiber laser |
| title | Erbium-Doped Fibers Designed for Random Single-Frequency Lasers Operating in the Extended L-Band |
| title_full | Erbium-Doped Fibers Designed for Random Single-Frequency Lasers Operating in the Extended L-Band |
| title_fullStr | Erbium-Doped Fibers Designed for Random Single-Frequency Lasers Operating in the Extended L-Band |
| title_full_unstemmed | Erbium-Doped Fibers Designed for Random Single-Frequency Lasers Operating in the Extended L-Band |
| title_short | Erbium-Doped Fibers Designed for Random Single-Frequency Lasers Operating in the Extended L-Band |
| title_sort | erbium doped fibers designed for random single frequency lasers operating in the extended l band |
| topic | silicate glass erbium fiber photosensitivity gain fiber Bragg grating random fiber laser |
| url | https://www.mdpi.com/2304-6732/11/12/1175 |
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