Lasing current injection

C5.1 InGaN/GaN/AlGaN-based laser diodes C5.2 Optically pumped lasing and current injection lasing in GaN-based laser structures... 

Fig. 9. The energy diagram of the C3 laser illustrates its Lunability by current injection. As explained by Tsang, the current to one of the half-lasers elevates it above its lasing threshold. Thus, its resonant modes are fixed as indicated in...

Stimulated emission and lasing in GaN-based structures can be achieved by both optical pumping and current injection. We have presented some of the most recent results of optically pumped SE and laser action studies in GaN and related heterostructures. Current injection LD operation repotted in the literature has been presented in a table in chronological order. 

When we wish to verify the lasing operation of a new and/or ultra-low threshold device, the non-linear relation in the injection current versus light output characteristics is an easy method of testing the threshold criterion. However, sometimes this is observed even on non-lasing samples owing to the filtering effect and electron-hole plasma emission. Methods used to definitively confirm laser operation for vertical cavity devices are as follows [37] ... 

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