Abstract

Semiconductor doped glasses are now being considered the ideal material for making sub-picosecond nonlinear optical devices. Experiments performed on bluk glasses have shown its larger optical non-linearety⁽¹⁾ and demonstrated carrier recombination times in the range of 80 to 16 ps⁽²⁾. Recently, nonlinear response of semiconductor doped glass has been obtained to be about 3.5 ps by indirect method of measuring moving grating⁽³⁾. So it has great potential for use in high qualitv nonlinear guided wave optical devices such as ring resonantors, directinal couplers and distributed feedback channel waveguides, etc.

© 1989 Optical Society of America