In a DH laser, the sides of cavity are formed by _______________
A) cutting the edges of device
B) roughening the edges of device
C) softening the edges of device
D) covering the sides with ceramics
Correct Answer:
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Q5: Stimulated emission by recombination of injected carriers
Q6: In semiconductor injection laser, narrow line bandwidth
Q7: Injection laser have a high threshold current
Q8: ?T Is known as slope quantum efficiency. State
Q9: The total efficiency of an injection laser
Q11: A particular laser structure is designed so
Q12: Gain guided laser structure are
A)chemical laser
B)gas laser
C)dh
Q13: Laser modes are generally separated by few
A)tenths
Q14: The spectral width of emission from the
Q15: Single longitudinal mode operation is obtained by
A)eliminating
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