Multiple Choice
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:
Verified
Correct Answer:
Verified
Q1: Injection laser have a high threshold current
Q2: Some refractive index variation is introduced into
Q3: Single longitudinal mode operation is obtained by<br>A)eliminating
Q4: A double-channel planar buried hetero-structure (DCP BH)
Q6: In Buried hetero-junction (BH) lasers, the optical
Q7: The total efficiency of an injection laser
Q8: The spectral width of emission from the
Q9: Laser modes are generally separated by few<br>A)tenths
Q10: Stimulated emission by recombination of injected carriers
Q11: The external power efficiency of an injection