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AssigneeIpg Photonics Corporation
InventorsKonstantin Vodopyanov, Sergey Vasilyev, Mikhail Mirov
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An optical parametric device (OPD), which is selected from an optical parametric oscillator (OPO) or optical parametric generator (OPG), is configured with a nonlinear optical element (NOE) which converts an incoupled pump radiation at first frequency into output signal and idler radiations at one second frequency or different second frequencies, which is/are lower than the first frequency, by utilizing nonlinear interaction via a random quasi-phase matching process (RQPM-NOE). The NOE is made from a nonlinear optical material selected from optical ceramics, polycrystals, micro and nanocrystals, colloids of micro and nanocrystals, and composites of micro and nanocrystals in polymer or glassy matrices. The nonlinear optical material is prepared by modifying a microstructure of the initial sample of the NOE such that an average grain size is of the order of a coherence length of the three-wave interaction which enables the highest parametric gain achievable via the RQPM process.
An optical parametric device (OPD) selected from an optical parametric oscillator (OPO) or optical parametric generator (OPG) and comprising a random polycrystalline nonlinear optical element (NOE) configured to convert an incoupled pump radiation at first frequency into output signal and idler radiations at at least one second frequency, which is lower than the first frequency, by utilizing nonlinear interaction via a random quasi-phase matching process (RQPM-NOE).
The OPD of the above claims, wherein the NOE is synchronously pumped.
The OPD of one of the above claims, wherein the pump laser is based on a gain element made from a TM:
The OPD of one of the above claims, wherein the pump laser is configured with a resonant cavity receiving the gain element, the NOE being located;
Dependencies are inferred from the claim text.