Amplified spontaneous emission in active channel waveguides produced by electron-beam lithography in LiF crystals

Montereali, R. M.; Piccinini, M.; Burattini, E.
June 2001
Applied Physics Letters;6/25/2001, Vol. 78 Issue 26, p4082
Academic Journal
In this letter we report the observation of amplified spontaneous emission of the red light from LiF:F[sub 2] centers in active channel waveguides realized by electron-beam lithography in lithium fluoride crystals. Low pumping power densities have been used in quasi-continuous-wave regime at room temperature; the appreciable values of the gain coefficients, 4.67 cm-1 with an exciting power density of 0.31 W/cm2 at 458 nm, make this material a good candidate for the realization of active integrated optical devices. © 2001 American Institute of Physics.


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