Q.20 A laser device has a threshold current density of 865.65 A−cm−2 and threshold current of 529 mA. The current spared through an active region with a distance of 63μm. If the cavity width of the laser is 200.36μm, the cavity length of this laser is: (a)1020μm (b)970μm (c)740μm (d)305μm
Q.20 A laser device has a threshold current density of 865.65 A−cm−2 and threshold current of 529 mA. The current spared through an active region with a distance of 63μm. If the cavity width of the laser is 200.36μm, the cavity length of this laser is: (a)1020μm (b)970μm (c)740μm (d)305μm
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Q.20 A laser device has a threshold current density of 865.65 A−cm−2 and threshold current of 529 mA. The current spared through an active region with a distance of 63μm. If the cavity width of the laser is 200.36μm, the cavity length of this laser is:
(a)1020μm
(b)970μm
(c)740μm
(d)305μm
Transcribed Image Text:Q.20 A laser device has a threshold current density of 865.65 A.cm-² and
threshold current of 529 mA. The current spared through an active region with
a distance of 63 µm. If the cavity width of the laser is 200.36 µm, the cavity
length of this laser is:
(a) 1020 μm
(b) 970 μm
(d) 305 µm
(c) 740 μm
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