Second harmonic generation in a high-Q lithium niobate microresonator fabricated by femtosecond laser micromachining

Second harmonic generation in a high-Q lithium niobate microresonator fabricated by femtosecond laser micromachining

We report on second harmonic generation (SHG) in on-chip high- Q (>105) lithium niobate (LiNbO 3 , LN) microresonators fabricated by femtosecond laser micromachining. We examine the efficiency of SHG with either a continuous-wave (CW) or an ultrashort pulsed pump laser. The normalized conversion...

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Veröffentlicht in:Science China. Physics, mechanics & astronomy mechanics & astronomy, 2015-11, Vol.58 (11), p.114209, Article 114209
Hauptverfasser: Lin, JinTian, Xu, YingXin, Fang, ZhiWei, Wang, Min, Wang, NengWen, Qiao, LingLing, Fang, Wei, Cheng, Ya
Format: Artikel
Sprache:eng
Schlagworte:
Astronomy
Classical and Continuum Physics
Continuous radiation
Laser machining
Lasers
Lithium
Lithium niobates
Micromachining
Observations and Techniques
Physics
Physics and Astronomy
Second harmonic generation
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Zusammenfassung:We report on second harmonic generation (SHG) in on-chip high- Q (>105) lithium niobate (LiNbO 3 , LN) microresonators fabricated by femtosecond laser micromachining. We examine the efficiency of SHG with either a continuous-wave (CW) or an ultrashort pulsed pump laser. The normalized conversion efficiencies of SHG obtained with the CW and pulsed pump lasers are measured to be 1.3510 -5 m W -1 and 2.3010 -6 m W -1 , respectively.
ISSN:1674-7348
1869-1927
DOI:10.1007/s11433-015-5728-x