In QC lasers, it is possible to obtain different output signal wavelengths. This can be achieved by
A) inter-valence band absorption
B) mode hopping
C) quantum cascading
D) selecting layers of different thickness
Correct Answer:
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Q13: The diode-cladding-pumped Erbium praseodymium-doped fluoride device operates
Q14: A technique based on inter-sub band transition
Q15: In a QC laser, a same electron
Q16: The phenomenon resulting in the electrons to
Q17: A QC laser is sometimes referred as:
A)unipolar
Q19: QC lasers _ the performance characteristics.
A)have negligible
Q20: An MQW cascaded laser is more advantageous
Q21: The absence of _ in LEDs limits
Q22: The excess density of electrons ?nand holes
Q23: The hole concentration in extrinsic materials is
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