Injection laser have a high threshold current density of
A) 104acm?2and more
B) 102acm?2
C) 10-2acm?2
D) 10-3acm?2
Correct Answer:
Verified
Q2: A homo-junction is an interface between two
Q3: How many types of hetero-junctions are available?
A)two
B)one
C)three
D)four
Q4: The _ system is best developed and
Q5: Stimulated emission by recombination of injected carriers
Q6: In semiconductor injection laser, narrow line bandwidth
Q8: ?T Is known as slope quantum efficiency. State
Q9: The total efficiency of an injection laser
Q10: In a DH laser, the sides of
Q11: A particular laser structure is designed so
Q12: Gain guided laser structure are
A)chemical laser
B)gas laser
C)dh
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