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Second-harmonic generation in periodically poled lithium niobate waveguides fabricated by femtosecond laser pulses
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10.1063/1.2364832
/content/aip/journal/apl/89/17/10.1063/1.2364832
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/17/10.1063/1.2364832

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Schematic of the waveguide writing setup using a femtosecond laser (, , ).

Image of FIG. 2.
FIG. 2.

(Color online) Experimental setup for the measurement of SHG and the near-field intensity distribution of waveguide. The inset picture shows the fabricated waveguide by tightly focused femtosecond laser in PPLN. ECL and PC denote extended-cavity laser and polarization controller, repectively. Photographs of the PPLN sample: (a) PPLN waveguide with a width and (b) PPLN sample after selective etching by a concentrated .

Image of FIG. 3.
FIG. 3.

Near-field mode profiles of the PPLN waveguide at the fundamental and SH wave: (a) (fundamental wave) and (b) (SH wave).

Image of FIG. 4.
FIG. 4.

(Color online) SHG curve at room temperature . The conversion efficiency was measured to be . The wavelength of the peak and bandwidth were 1563.16 and , respectively.

Tables

Generic image for table
Table I.

The QPM wavelengths and dispersion (the index difference between the fundamental and harmonic wavelengths) values in the three different types of QPM devices.

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/content/aip/journal/apl/89/17/10.1063/1.2364832
2006-10-23
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Second-harmonic generation in periodically poled lithium niobate waveguides fabricated by femtosecond laser pulses
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/17/10.1063/1.2364832
10.1063/1.2364832
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