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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

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

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
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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