A new material for lasers without population inversion

What is it about?

TiO2 dopants are significantly changed the Raman gain spectrum of single-mode fiber. We have shown for the first time that lasing bandwidth in TiO2 doped fiber may be almost twice wider than the lasing bandwidth in standard GeO2 doped fiber.

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Why is it important?

We proposed a method for determining the real Raman gain spectrum based on the ordinary spectrum of spontaneous scattering. This is important for developing new and more sophisticated fiber lasers.