“…Glasses doped with IV-VI semiconductor quantum dots (SQDs) of lead chalcogenides such as PbS [1][2][3][4][5][6][7][8][9][10][11][12], PbSe [13][14][15][16][17][18][19][20][21][22][23][24][25], and PbTe [26][27][28][29][30][31][32][33][34][35] are candidates for optical communication devices applications because of their narrow band-gap, large optical nonlinearity and fast response time [34,[36][37][38][39][40]. They are of great interest for all-optical devices applications such as all-optical switches [15,27,[41][42][43][44], wavelength converter [45][46]<...>…”