Abstract
The walkoff-compensated (WOC) twin-crystal device enables to reduce the aperture effects in critically phase-matched parametric generation. In that device, instead of using a monolithic bulk crystal of length 21 c, two identically-cut crystals of length l c are disposed in tandem such that the relative sign of the walkoff angle ρ in the first and second items are opposite, while keeping unchanged the relative sign of their non-linear effective susceptibilities through a proper orientation of their optic axes. Applied to KTiOPO 4 (KTP) for type-II (oeo) second-harmonic generation (SHG) of a color center laser, the 2 × l c twin- crystal device leads to a conversion efficiency 3.5 times higher than that of a 21c single bulk crystal. The same WOC technique has been applied successfully in the type-I (ooe) SHG of a CO 2 laser using an AgGaSe 2 (AGSE) device. The extension of the WOC method to a periodical structure composed of N twin-device stacks is considered. We report the first demonstration of the SHG efficiency enhancement of such a structure, which is made of four KTP plate optically contacted in the WOC configuration.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Editors | Mool C. Gupta, William J. Kozlovsky, David C. MacPherson |
| Pages | 66-72 |
| Number of pages | 7 |
| Volume | 2700 |
| Publication status | Published - 1996 |
| Externally published | Yes |
| Event | Nonlinear Frequency Generation and Conversion - San Jose, CA, USA Duration: Jan 29 1996 → Jan 31 1996 |
Other
| Other | Nonlinear Frequency Generation and Conversion |
|---|---|
| City | San Jose, CA, USA |
| Period | 1/29/96 → 1/31/96 |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
Walk-off-compensated type-I and type-II SHG using twin-crystal AgGaSe2 and KTiOPO4 devices. / Zondy, Jean Jacques; Abed, M.; Khodja, S.; Bonnin, C.; Rainaud, B.; Albrecht, Herve; Lupinski, Dominique.
Proceedings of SPIE - The International Society for Optical Engineering. ed. / Mool C. Gupta; William J. Kozlovsky; David C. MacPherson. Vol. 2700 1996. p. 66-72.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Walk-off-compensated type-I and type-II SHG using twin-crystal AgGaSe2 and KTiOPO4 devices
AU - Zondy, Jean Jacques
AU - Abed, M.
AU - Khodja, S.
AU - Bonnin, C.
AU - Rainaud, B.
AU - Albrecht, Herve
AU - Lupinski, Dominique
PY - 1996
Y1 - 1996
N2 - The walkoff-compensated (WOC) twin-crystal device enables to reduce the aperture effects in critically phase-matched parametric generation. In that device, instead of using a monolithic bulk crystal of length 21 c, two identically-cut crystals of length l c are disposed in tandem such that the relative sign of the walkoff angle ρ in the first and second items are opposite, while keeping unchanged the relative sign of their non-linear effective susceptibilities through a proper orientation of their optic axes. Applied to KTiOPO 4 (KTP) for type-II (oeo) second-harmonic generation (SHG) of a color center laser, the 2 × l c twin- crystal device leads to a conversion efficiency 3.5 times higher than that of a 21c single bulk crystal. The same WOC technique has been applied successfully in the type-I (ooe) SHG of a CO 2 laser using an AgGaSe 2 (AGSE) device. The extension of the WOC method to a periodical structure composed of N twin-device stacks is considered. We report the first demonstration of the SHG efficiency enhancement of such a structure, which is made of four KTP plate optically contacted in the WOC configuration.
AB - The walkoff-compensated (WOC) twin-crystal device enables to reduce the aperture effects in critically phase-matched parametric generation. In that device, instead of using a monolithic bulk crystal of length 21 c, two identically-cut crystals of length l c are disposed in tandem such that the relative sign of the walkoff angle ρ in the first and second items are opposite, while keeping unchanged the relative sign of their non-linear effective susceptibilities through a proper orientation of their optic axes. Applied to KTiOPO 4 (KTP) for type-II (oeo) second-harmonic generation (SHG) of a color center laser, the 2 × l c twin- crystal device leads to a conversion efficiency 3.5 times higher than that of a 21c single bulk crystal. The same WOC technique has been applied successfully in the type-I (ooe) SHG of a CO 2 laser using an AgGaSe 2 (AGSE) device. The extension of the WOC method to a periodical structure composed of N twin-device stacks is considered. We report the first demonstration of the SHG efficiency enhancement of such a structure, which is made of four KTP plate optically contacted in the WOC configuration.
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UR - http://www.scopus.com/inward/citedby.url?scp=0029727216&partnerID=8YFLogxK
M3 - Conference contribution
SN - 0819420743
SN - 9780819420749
VL - 2700
SP - 66
EP - 72
BT - Proceedings of SPIE - The International Society for Optical Engineering
A2 - Gupta, Mool C.
A2 - Kozlovsky, William J.
A2 - MacPherson, David C.
ER -