Generation of tunable dual - wavelength optical short pulse using a self - seeding scheme with enhanced sidemode suppression ratio 以自激注入鎖定方式生成邊模抑制比高的可調諧雙波長超短光脈沖
The side mode suppression ratio about 39db is realized . 5 . a tunable cladding - pumped yb3 + - doped fiber laser system is reported 55 m可調諧光纖光柵外腔半導體激光器,得到調諧范圍為7nm 、邊模抑制比達39db的激光輸出。
( 3 ) with the increase of the injected current , the lasing wavelength of fgesl appears fluctuation , the side mode suppression ratio ( smsr ) increases accompanied by an oscillation , and the p - i curve distorts slightly Fgesl的激射波長隨ld的注入電流的增大而發(fā)生波動;邊模抑制比( smsr )隨注入電流的增大總體上呈現(xiàn)上升趨勢,但其變化過程并不平滑而是有較大的波動; fgesl的p一i曲線有微小的扭曲。