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Analytical Calculations of Switch-on Time andTiming Jitter in Diode Lasers Subjected toOptical Feedback and External Light

Analytical expressions for the switch-on time and timing jitter are obtained for a single-mode semiconductor laser subjected to both optical feedback and external light injection. The expressions are validated by numerical simulation of the noise-driven rate equations. It is shown that even for a large frequency mismatch, when the external light injection is ineecient to improve the response of the laser, an important reduction of the timing jitter can be obtained when optical feedback is present.