A GaAs injection laser has a threshold current density of 2.5*103Acm-2 – McqOptions

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1.	A GaAs injection laser has a threshold current density of 2.5*103Acm-2 and length and width of the cavity is 240μm and 110μm respectively. Find the threshold current for the device.
A.	663 ma
B.	660 ma
C.	664 ma
D.	712 ma
Answer» C. 664 ma

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A GaAs injection laser has a threshold current density of 2.5*103Acm-2 and length and width of the cavity is 240μm and 110μm respectively. Find the threshold current for the device.
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