Question

______________ are operated at current beyond normal lasing threshold current, practically.

a.

Semiconductor optical amplifier

b.

Erbium-doped fiber amplifier

c.

Raman fiber amplifier

d.

Brillouin fiber amplifier

Posted under Optical Communication

Answer: (a).Semiconductor optical amplifier

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Q. ______________ are operated at current beyond normal lasing threshold current, practically.

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