Highly reconfigurable hybrid laser based on an integrated nonlinear waveguide
Abstract
The ability of laser systems to emit different adjustable temporal pulse profiles and patterns is desirable for a broad range of applications. While passive mode-locking techniques have been widely employed for the realization of ultrafast laser pulses with mainly Gaussian or hyperbolic secant temporal profiles, the generation of versatile pulse shapes in a controllable way and from a single laser system remains a challenge. Here we show that a nonlinear amplifying loop mirror (NALM) laser with a bandwidth-limiting filter (in a nearly dispersion-free arrangement) and a short integrated nonlinear waveguide enables the realization and distinct control of multiple mode-locked pulsing regimes (e.g., Gaussian pulses, square waves, fast sinusoidal-like oscillations) with repetition rates that are variable from the fundamental (7.63 MHz) through its 205th harmonic (1.56 GHz). These dynamics are described by a newly developed and compact theoretical model, which well agrees with our experimental results. It attributes the control of emission regimes to the change of the NALM response function that is achieved by the adjustable interplay between the NALM amplification and the nonlinearity. In contrast to previous square wave emissions, we experimentally observed that an Ikeda instability was responsible for square wave generation. The presented approach enables laser systems that can be universally applied to various applications, e.g., spectroscopy, ultrafast signal processing and generation of non-classical light states.
Details
- Organisationseinheit(en)
-
Hannoversches Zentrum für Optische Technologien (HOT)
- Externe Organisation(en)
-
Institut national de la recherche scientifique (INRS)
St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO)
Harvard University
University of Electronic Science and Technology of China
City University of Hong Kong
Swinburne University of Technology
Chinese Academy of Sciences (CAS)
- Typ
- Artikel
- Journal
- Optics Express
- Band
- 27
- Seiten
- 25251-25264
- Anzahl der Seiten
- 14
- ISSN
- 1094-4087
- Publikationsdatum
- 02.09.2019
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Atom- und Molekularphysik sowie Optik
- Elektronische Version(en)
-
https://doi.org/10.1364/OE.27.025251 (Zugang:
Offen
)
