Frequency Difference Thermally and Electrically Tunable Dual-Frequency Nd:YAG/LiTaO3 Microchip Laser

Frequency Difference Thermally and Electrically Tunable Dual-Frequency Nd:YAG/LiTaO3 Microchip Laser

This study presents a dual-frequency microchip laser with a thermo-optically and electro-optically tuned frequency difference. The dual-frequency microchip cavity is formed by bonding a Lithium tantalite (LiTaO3, LTO) crystal chip and a neodymium-doped yttrium aluminum garnet (Nd:YAG) crystal chip....

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Veröffentlicht in:Applied sciences 2019-05, Vol.9 (10), p.1969
Hauptverfasser: Gui, Kun, Zhang, Zilong, Xing, Yuxiao, Zhang, Haiyang, Zhao, Changming
Format: Artikel
Sprache:eng
Schlagworte:
Birefringence
Cooling
Electric fields
electro-optic effect
Experiments
Lasers
Light
microchip laser
microwave photonics
Neodymium lasers
Optical fibers
Optics
Semiconductor lasers
Semiconductors
Spectrum allocation
Theoretical analysis
thermo-optic effect
tunable dual frequency
YAG lasers
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Beschreibung
Zusammenfassung:This study presents a dual-frequency microchip laser with a thermo-optically and electro-optically tuned frequency difference. The dual-frequency microchip cavity is formed by bonding a Lithium tantalite (LiTaO3, LTO) crystal chip and a neodymium-doped yttrium aluminum garnet (Nd:YAG) crystal chip. A single longitudinal mode is generated by the Nd:YAG crystal and split into two frequencies with perpendicular polarizations due to birefringent effect in the LTO chip. Furthermore, continuous beat frequency tuning at different scales is realized by adjusting the temperature and voltage applied to the LTO crystal. A maximum beat frequency of up to 27 GHz is obtained, and the frequency difference lock-in phenomenon is observed below the frequency difference of 405 MHz.
ISSN:2076-3417
2076-3417
DOI:10.3390/app9101969