DrBob/Todo

To do list:

• More images for articles above.
• Finish lens
• Finish laser applications (medical, industrial apps to be added)
• Finish absorption (not yet).
• [Quantum electronics]?
• Move most of population inversion to laser science/[quantum electronics]?
• wave equation - need for nonlinear optics
• expand optical fiber
• possibly add article on [optical communications]?, EDFA?
• nonlinear optics - flesh out stub
• soliton?