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Phase-locked degenerate backward wave optical parametric oscillator

Mutter, Patrick ; Zukauskas, Andrius ; Viotti, Anne Lise LU orcid ; Canalias, Carlota and Pasiskevicius, Valdas (2023) In APL Photonics 8(2).
Abstract

We report a self-phase-locked and degenerate backward wave optical parametric oscillator (BWOPO) generating a counterpropagating signal and an idler in the spectral band of optical communication. The device is based on a periodically poled Rb-doped KTiOPO4 crystal with a poling period of 433 nm. To the best of our knowledge, this is the shortest quasi-phase matching period reported in the bulk of a ferroelectric crystal. The spectral and coherence properties of the BWOPO at degeneracy are investigated. We observe a single pass conversion efficiency of 40%. At degeneracy, the counterpropagating signal and idler generate phase-matched sum-frequency generation in both directions. We confirm the phase-locked state at degeneracy by... (More)

We report a self-phase-locked and degenerate backward wave optical parametric oscillator (BWOPO) generating a counterpropagating signal and an idler in the spectral band of optical communication. The device is based on a periodically poled Rb-doped KTiOPO4 crystal with a poling period of 433 nm. To the best of our knowledge, this is the shortest quasi-phase matching period reported in the bulk of a ferroelectric crystal. The spectral and coherence properties of the BWOPO at degeneracy are investigated. We observe a single pass conversion efficiency of 40%. At degeneracy, the counterpropagating signal and idler generate phase-matched sum-frequency generation in both directions. We confirm the phase-locked state at degeneracy by interfering the pump with the frequency-doubled backward wave. The phase-locked state is stable during the entire duration of the experiment without active stabilization.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
APL Photonics
volume
8
issue
2
article number
026104
publisher
American Institute of Physics (AIP)
external identifiers
  • scopus:85148687703
ISSN
2378-0967
DOI
10.1063/5.0135589
language
English
LU publication?
yes
id
ef9d2e39-55ea-4e06-adbe-9337ed1a887f
date added to LUP
2023-03-16 10:38:38
date last changed
2023-11-21 02:10:04
@article{ef9d2e39-55ea-4e06-adbe-9337ed1a887f,
  abstract     = {{<p>We report a self-phase-locked and degenerate backward wave optical parametric oscillator (BWOPO) generating a counterpropagating signal and an idler in the spectral band of optical communication. The device is based on a periodically poled Rb-doped KTiOPO4 crystal with a poling period of 433 nm. To the best of our knowledge, this is the shortest quasi-phase matching period reported in the bulk of a ferroelectric crystal. The spectral and coherence properties of the BWOPO at degeneracy are investigated. We observe a single pass conversion efficiency of 40%. At degeneracy, the counterpropagating signal and idler generate phase-matched sum-frequency generation in both directions. We confirm the phase-locked state at degeneracy by interfering the pump with the frequency-doubled backward wave. The phase-locked state is stable during the entire duration of the experiment without active stabilization.</p>}},
  author       = {{Mutter, Patrick and Zukauskas, Andrius and Viotti, Anne Lise and Canalias, Carlota and Pasiskevicius, Valdas}},
  issn         = {{2378-0967}},
  language     = {{eng}},
  number       = {{2}},
  publisher    = {{American Institute of Physics (AIP)}},
  series       = {{APL Photonics}},
  title        = {{Phase-locked degenerate backward wave optical parametric oscillator}},
  url          = {{http://dx.doi.org/10.1063/5.0135589}},
  doi          = {{10.1063/5.0135589}},
  volume       = {{8}},
  year         = {{2023}},
}