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The parameters having a major role in determining threshold current of efficiency of injection laser are ___________

The parameters having a major role in determining threshold current of efficiency of injection laser are ___________ Correct Answer Angle recombination and optical losses

Optical losses due to free carrier absorption are more because of their dependence on square of the wavelength. Also irradiative recombination through Auger recombination contributes to it. Both these effects cause more problems in md-infrared wavelengths and so are of much importance art high temperature due to high concentration of free carriers. They also limit maximum operating temperatures.

Related Questions

Which of the following statements relating to 'role' is/are true and false?
1 The system of various roles that the individual carries and performs is 'role set'.
2. The system of various roles of which an individuals role is a part in 'role space'.
3. Self role integration, proactivity, creativity and conformation are ingredients of the role making dimension of role efficacy.
4. Role stress is caused by both role space conflict and role set conflict.
A GaAs injection laser has a threshold current density of 2.5*103Acm-2 and length and width of the cavity is 240μm and 110μm respectively. Find the threshold current for the device.
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In ensuring sustainable curriculum change and improvement, whose role is crucial in the Indian context? (a) Role of students feedback (b) Role of teachers feedback (c) Role of parents reactions (d) Role of educational authorities (e) Role of public in general Give your answer from the following option:
Assertion (A) Each role must have enough stressers which may help the role occupant to stretch himself/herself to meet the challenge. In the role, where the scope is limited to routine work, the role occupants do not perceive any challenge.
Reason (R) While every role has some routine elements, challenge can also be incorporated into every role. However, the challenge should not exceed an optimal limit, otherwise it may produce dysfunctional stress, resulting in poor performance or damage to the health of the employee in the long-run.
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Injection laser have a high threshold current density of __________
Determine the threshold current density for an AlGaAs injection laser with T0=180k at 30°C.