Harmonic modulation of radiation of an external-feedback semiconductor laser

Journal Article · Wed Feb 28 00:00:00 EST 2007 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2007V037N02ABEH013213· OSTI ID:21466617

Sukharev, Aleksandr G; Napartovich, A P ^[1]

---

1. State Research Center of Russian Federation 'Troitsk Institute for Innovation and Fusion Research', Troitsk, Moscow Region (Russian Federation)

The appearance of the harmonic modulation regime at the Hopf bifurcation point is described analytically for a delayed-feedback semiconductor laser. The second-order delay differential equation with complex coefficients is derived. The frequency of oscillations appearing at the Hopf bifurcation point is determined by the solution of two relatively simple transcendental equations, from which the bifurcation point itself is found. These equations contain dependences on all the control parameters of the problem. The exact upper and lower limits of the oscillation frequency are found. A comparison with numerical results shows that the modulation frequency is preserved almost constant in a broad range of feedback phases. A procedure is proposed for determining the parameters of the laser providing the presence of bifurcations with a passage to oscillations with the specified frequency. The results obtained in the paper are of interest for WDM communication systems. (control of laser radiation parameters)

• OSTI ID: 21466617
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 37, Issue 2; Other Information: DOI: 10.1070/QE2007v037n02ABEH013213; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BIFURCATION
COMPARATIVE EVALUATIONS
DIFFERENTIAL EQUATIONS
FEEDBACK
LASER RADIATION
MATHEMATICAL SOLUTIONS
MODULATION
OSCILLATIONS
SEMICONDUCTOR LASERS
ELECTROMAGNETIC RADIATION
EQUATIONS
EVALUATION
LASERS
RADIATIONS
SEMICONDUCTOR DEVICES
SOLID STATE LASERS