Physics · Optics and Lasers
An optical cavity of a laser, formed by two plane mirrors, is filled up with an active medium. The medium emits radiation at wavelengths 450 nm, 600 nm, and 750 nm. If the medium is continuously pumped, at which cavity length among the following will all three wavelengths be amplified?
- 1750 μm✓
- 21500 μm
- 3600 μm
- 4450 μm
Correct answer
750 μm
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