In this letter we report the observation of amplified spontaneous emission of the red light from LiF:F2centers 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-1with an exciting power density of 0.31 W/cm2at 458 nm, make this material a good candidate for the realization of active integrated optical devices. © 2001 American Institute of Physics.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
Montereali, R. M., Piccinini, M., & Burattini, E. (2001). Amplified spontaneous emission in active channel waveguides produced by electron-beam lithography in LiF crystals. Applied Physics Letters, 78(26), 4082 - 4084. https://doi.org/10.1063/1.1381568