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Leon Bello edited subsection_Parametric_Oscillator_An_optical__.tex
over 8 years ago
Commit id: d00380d210ebef312cb2b5fe76daab46d2bde75a
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diff --git a/subsection_Parametric_Oscillator_An_optical__.tex b/subsection_Parametric_Oscillator_An_optical__.tex
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\[\omega_p = \omega_s + \omega_i\]
\[\varphi_p = \varphi_s + \varphi_i\]
The optical resonator resonates in at least one of the generated frequencies, the non-linear interaction in the crystal leads to amplitude gain for the signal and idler waves and attenuation of the pump wave (parametric amplification), if the amplification is enough to overcome the losses, the resonator will resonate in one of the generated frequencies (singly-resonant) or both (doubly-resonant).
A special case is when the idler and signal frequencies are
the degenerate.
\[\omega_s = \omega_i = \omega_p/2\]
The generated frequency can be tuned by changing the phase-matching conditions of the OPO, thus making the OPO a source of tunable radiation, also, as explained in the next section, the light produced is "squeezed" and useful for various purposes.
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