Frequency doubling in surface periodically poled lithium niobate waveguides: Competing effects

S. Stivala, A. Pasquazi, A. C. Busacca, L. Colace, M. Cherchi, A. Parisi, A. C. Cino, S. Riva-Sanseverino, G. Assanto

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

We fabricated α-phase pro ton-exchanged (PE) lithium niobate (LN) channel waveguides quasi phase-matched (QPM) via surface periodic poling (SPP) and carried out the first experimental demonstration of second harmonic generation (SHG) in such devices.[1] Experiments were performed by employing an optical parametric amplifier/oscillator producing 25 ps pulses in the range 1.1-1.6 μm with a line-width less than 2cm−1 and a repetition rate of 10Hz. SHG measurements were performed either at a fixed wavelength by varying the fundamental frequency (FF) input power or by scanning the FF wavelength, ratioing the second harmonic (SH) output to the FF input to obtain the conversion efficiency. By repeating the SHG scan versus peak power, we observed that the wavelength for maximum conversion (the FF resonance for SHG) shifted with excitation, as visible in Fig. 1a. Otherwise stated, when performing a power scan at a fixed FF wavelength, the conversion efficiency first increased with power (as expected) and then decreased. By adjusting the wavelength, conversely, we observed a linear dependence in maximum conversion to SH (see Fig. 1c), as well as in peak SHG wavelength (see Fig. 1b).
Original languageEnglish
Title of host publicationInternational Quantum Electronics Conference 2007
PublisherOptical Society of America OSA
ISBN (Print)1-4244-931-4
Publication statusPublished - 1 Jan 2007
MoE publication typeNot Eligible
EventInternational Quantum Electronics Conference, IQEC 2007 - Munich, Germany
Duration: 17 Jun 200717 Jun 2007

Conference

ConferenceInternational Quantum Electronics Conference, IQEC 2007
CountryGermany
CityMunich
Period17/06/0717/06/07

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lithium niobates
Harmonic generation
Waveguides
Lithium
harmonic generations
waveguides
Wavelength
wavelengths
Conversion efficiency
Optical parametric amplifiers
harmonics
parametric amplifiers
light amplifiers
Linewidth
repetition
Demonstrations
adjusting
oscillators
Scanning
scanning

Cite this

Stivala, S., Pasquazi, A., Busacca, A. C., Colace, L., Cherchi, M., Parisi, A., ... Assanto, G. (2007). Frequency doubling in surface periodically poled lithium niobate waveguides: Competing effects. In International Quantum Electronics Conference 2007 Optical Society of America OSA.
Stivala, S. ; Pasquazi, A. ; Busacca, A. C. ; Colace, L. ; Cherchi, M. ; Parisi, A. ; Cino, A. C. ; Riva-Sanseverino, S. ; Assanto, G. / Frequency doubling in surface periodically poled lithium niobate waveguides : Competing effects. International Quantum Electronics Conference 2007. Optical Society of America OSA, 2007.
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title = "Frequency doubling in surface periodically poled lithium niobate waveguides: Competing effects",
abstract = "We fabricated α-phase pro ton-exchanged (PE) lithium niobate (LN) channel waveguides quasi phase-matched (QPM) via surface periodic poling (SPP) and carried out the first experimental demonstration of second harmonic generation (SHG) in such devices.[1] Experiments were performed by employing an optical parametric amplifier/oscillator producing 25 ps pulses in the range 1.1-1.6 μm with a line-width less than 2cm−1 and a repetition rate of 10Hz. SHG measurements were performed either at a fixed wavelength by varying the fundamental frequency (FF) input power or by scanning the FF wavelength, ratioing the second harmonic (SH) output to the FF input to obtain the conversion efficiency. By repeating the SHG scan versus peak power, we observed that the wavelength for maximum conversion (the FF resonance for SHG) shifted with excitation, as visible in Fig. 1a. Otherwise stated, when performing a power scan at a fixed FF wavelength, the conversion efficiency first increased with power (as expected) and then decreased. By adjusting the wavelength, conversely, we observed a linear dependence in maximum conversion to SH (see Fig. 1c), as well as in peak SHG wavelength (see Fig. 1b).",
author = "S. Stivala and A. Pasquazi and Busacca, {A. C.} and L. Colace and M. Cherchi and A. Parisi and Cino, {A. C.} and S. Riva-Sanseverino and G. Assanto",
year = "2007",
month = "1",
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Stivala, S, Pasquazi, A, Busacca, AC, Colace, L, Cherchi, M, Parisi, A, Cino, AC, Riva-Sanseverino, S & Assanto, G 2007, Frequency doubling in surface periodically poled lithium niobate waveguides: Competing effects. in International Quantum Electronics Conference 2007. Optical Society of America OSA, International Quantum Electronics Conference, IQEC 2007, Munich, Germany, 17/06/07.

Frequency doubling in surface periodically poled lithium niobate waveguides : Competing effects. / Stivala, S.; Pasquazi, A.; Busacca, A. C.; Colace, L.; Cherchi, M.; Parisi, A.; Cino, A. C.; Riva-Sanseverino, S.; Assanto, G.

International Quantum Electronics Conference 2007. Optical Society of America OSA, 2007.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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AU - Stivala, S.

AU - Pasquazi, A.

AU - Busacca, A. C.

AU - Colace, L.

AU - Cherchi, M.

AU - Parisi, A.

AU - Cino, A. C.

AU - Riva-Sanseverino, S.

AU - Assanto, G.

PY - 2007/1/1

Y1 - 2007/1/1

N2 - We fabricated α-phase pro ton-exchanged (PE) lithium niobate (LN) channel waveguides quasi phase-matched (QPM) via surface periodic poling (SPP) and carried out the first experimental demonstration of second harmonic generation (SHG) in such devices.[1] Experiments were performed by employing an optical parametric amplifier/oscillator producing 25 ps pulses in the range 1.1-1.6 μm with a line-width less than 2cm−1 and a repetition rate of 10Hz. SHG measurements were performed either at a fixed wavelength by varying the fundamental frequency (FF) input power or by scanning the FF wavelength, ratioing the second harmonic (SH) output to the FF input to obtain the conversion efficiency. By repeating the SHG scan versus peak power, we observed that the wavelength for maximum conversion (the FF resonance for SHG) shifted with excitation, as visible in Fig. 1a. Otherwise stated, when performing a power scan at a fixed FF wavelength, the conversion efficiency first increased with power (as expected) and then decreased. By adjusting the wavelength, conversely, we observed a linear dependence in maximum conversion to SH (see Fig. 1c), as well as in peak SHG wavelength (see Fig. 1b).

AB - We fabricated α-phase pro ton-exchanged (PE) lithium niobate (LN) channel waveguides quasi phase-matched (QPM) via surface periodic poling (SPP) and carried out the first experimental demonstration of second harmonic generation (SHG) in such devices.[1] Experiments were performed by employing an optical parametric amplifier/oscillator producing 25 ps pulses in the range 1.1-1.6 μm with a line-width less than 2cm−1 and a repetition rate of 10Hz. SHG measurements were performed either at a fixed wavelength by varying the fundamental frequency (FF) input power or by scanning the FF wavelength, ratioing the second harmonic (SH) output to the FF input to obtain the conversion efficiency. By repeating the SHG scan versus peak power, we observed that the wavelength for maximum conversion (the FF resonance for SHG) shifted with excitation, as visible in Fig. 1a. Otherwise stated, when performing a power scan at a fixed FF wavelength, the conversion efficiency first increased with power (as expected) and then decreased. By adjusting the wavelength, conversely, we observed a linear dependence in maximum conversion to SH (see Fig. 1c), as well as in peak SHG wavelength (see Fig. 1b).

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BT - International Quantum Electronics Conference 2007

PB - Optical Society of America OSA

ER -

Stivala S, Pasquazi A, Busacca AC, Colace L, Cherchi M, Parisi A et al. Frequency doubling in surface periodically poled lithium niobate waveguides: Competing effects. In International Quantum Electronics Conference 2007. Optical Society of America OSA. 2007