Theory of FM noise of single-mode injection lasers

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Theory of FM noise of single-mode injection lasers

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The FM noise of single-mode injection lasers is studied in terms of the root-mean-square frequency deviation Δfrms against the angular modulation frequency ωm off-carrier. Spontaneous emission causes phase fluctuations of the laser wave. Enhanced FM noise may occur due to radiation-induced fluctuations of the carrier density. The influence of the coupling between laser field and active region on this modulation noise is investigated.

Inspec keywords: optical modulation; laser frequency stability; laser theory; semiconductor junction lasers; electron device noise; frequency modulation; optical communication equipment

Other keywords: laser field; active region; electron device noise; semiconductor junction lasers; modulation noise; radiation-induced carrier density fluctuations; coupling; angular modulation frequency; FM noise; phase fluctuations; off-carrier; optical communication equipment; optical modulation; RMS frequency deviation; single-mode injection lasers

Subjects: Lasing action in semiconductors; Laser beam modulation, pulsing and switching; mode locking and tuning; Semiconductor lasers; Optical communication

References

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Erratum: Theory of FM noise of single-mode injection lasers