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- Strömqvist, GustavKTH,Laserfysik (author)
Temporal coherence in mirrorless optical parametric oscillators
- Article/chapterEnglish2012
Publisher, publication year, extent ...
- 2012
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:kth-92274
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-92274URI
- https://doi.org/10.1364/JOSAB.29.001194DOI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
Classification
Notes
- QC 20120702
- One of the unique features of mirrorless optical parametric oscillators based on counterpropagating three-wave interactions is the narrow spectral width of the wave generated in the backward direction. In this work, we investigate experimentally and numerically the influence that a strong phase modulation in the pump has on the spectral bandwidths of the parametric waves and on the efficiency of the nonlinear interaction. The effects of group-velocity mismatch and group-velocity dispersion are elucidated. In particular, it is shown that the substantial increase in temporal coherence of the backward-generated wave can be obtained even for pumping with a temporally incoherent pump. A configuration of a mirrorless optical parametric oscillator is proposed where this gain in spectral coherence is maximized without a penalty in conversion efficiency by employing group-velocity matching of the pump and the forward-generated parametric wave.
Subject headings and genre
- NATURVETENSKAP Fysik hsv//swe
- NATURAL SCIENCES Physical Sciences hsv//eng
- Counterpropagating
- Group velocities
- Group-velocity mismatch
- Incoherent pump
- Nonlinear interactions
- Parametric waves
- Spectral bandwidth
- Spectral coherence
- Spectral widths
- Temporal coherence
- Three-wave interactions
- Unique features
- Conversion efficiency
- Phase modulation
Added entries (persons, corporate bodies, meetings, titles ...)
- Pasiskevicius, ValdasKTH,Laserfysik(Swepub:kth)u108iqot (author)
- Canalias, CarlotaKTH,Laserfysik(Swepub:kth)u1gtitq9 (author)
- Aschieri, Pierre (author)
- Picozzi, Antonio (author)
- Montes, Carlos (author)
- KTHLaserfysik (creator_code:org_t)
Related titles
- In:Journal of the Optical Society of America. B, Optical physics29:6, s. 1194-12020740-32241520-8540
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