Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
We investigate a mode-locked laser with optical feedback and a spectral filter that limits the number of lasing modes. For up to around ten modes the laser effectively behaves as a single-mode laser: it may generate Q-switched pulses but does not mode lock. When the number of modes is increased we observe the emergence of multi-frequency pulsing associated with invariant tori and multistability. We...
Pulsed light sources are of interest for a range of applications, as well as from a dynamical systems perspective. For applications, such as optical data communication, it is important that the pulse trains that are produced are highly regular. This is a hurdle when using passively mode-locked semiconductor lasers, because pulse trains from these devices tend to have a considerable timing jitter....
Optical feedback stabilization is a powerful concept to improve the timing stability of passively mode-locked lasers. We first study experimentally the repetition rate and timing jitter behavior of a single-cavity optical feedback as a function of the microscopic delay length. By a dual-cavity optical feedback configuration, we then present experimental and numerical results on the repetition rate...
Passively mode-locked semiconductor lasers have evolved as versatile photonic sources delivering ultra-short optical pulses with multi-gigahertz pulse repetition rates. In particular time-critical applications involving such compact and ultrafast photonic sources demand a precise knowledge of the pulse train timing and potential amplitude instabilities as well as pulse repetition control. The particular...
We investigate optical control schemes for passively mode-locked lasers (PMLLs). The coupling of two identical PMLLs provides a possibility to produce highly regular pulse trains by reducing the pulse timing jitter, superior to the single optical feedback scheme, while furthermore allowing for an effective doubling of the pulse repetition rate for proper coupling delay. A dual optical feedback scheme...
We investigate the impact of amplitude-phase coupling on the dynamics of a passively mode-locked laser subject to optical feedback. This is done using a delay differential equation model to calculate bifurcation diagrams in the plane of the feedback parameters. We find an increased complexity in the dynamics of the laser when the effective α-factors of the gain and absorber sections are different...
Optical feedback can be used to reduce the timing jitter of passively mode-locked lasers. Using a delay differential equation model, we investigate the effect of optical feedback on a passively mode-locked laser. We find that longer feedback delay times lead to more effective jitter reduction. However, with non-zero amplitude-phase coupling in the laser sections, long delay feedback can give rise...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.