Talk:Optical parametric amplifier
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The article does not clarify the connection between nonlinear optics and parametric amplification, e.g. what type/order of nonlinearity is exploited. Some diagrams would be very helpful to the non-expert. There should be a clearer border between the the physical process and experimental/technical implementations. Nonetheless the article states nice details about what problems can occour in real-world implementations. Dwkdwk 12:51, 6 February 2007 (UTC)