What is the second phase of photosynthesis?
Here's an overview of both the Light and Dark cycles of photosynthesis, which looked particularly useful to me as it shows that the energy-carriers ATP and NADPH2 generated through solar energy are used in the dark cycle to generate sugars. 

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Here is another one that shows more details on the precursors involved in the Calvin cycle:



As commented by others, googling 'dark cycle' or its synonyms will give thousands of optional images to choose from if these don't suffice. The first one is taken from tutorvista.com the second one from users.rcn.com.