Ultrafast and widely tuneable vertical-external-cavity surface-emitting laser, mode-locked by a graphene-integrated distributed Bragg reflector
arXiv:1310.2132 · doi:10.1364/OE.21.031548
Abstract
We report a versatile and cost-effective way of controlling the unsaturated loss, modulation depth and saturation fluence of graphene-based saturable absorbers (GSAs), by changing the thickness of a spacer between SLG and a high-reflection mirror. This allows us to modulate the electric field intensity enhancement at the GSA from 0 up to 400%, due to the interference of incident and reflected light at the mirror. The unsaturated loss of the SLG-mirror-assembly can be reduced to0. We use this to mode-lock a VECSEL from 935 to 981nm. This approach can be applied to integrate SLG into various optical components, such as output coupler mirrors, dispersive mirrors, dielectric coatings on gain materials. Conversely, it can also be used to increase absorption (up to 10%) in various graphene based photonics and optoelectronics devices, such as photodetectors.
References in corpus (10)
- The Raman Fingerprint of Graphene
- Universal Dynamic Conductivity and Quantized Visible Opacity of Suspended Graphene
- Raman spectroscopy as a versatile tool for studying the properties of graphene
- Electrochemically Top Gated Graphene: Monitoring Dopants by Raman Scattering
- Measurement of the Optical Conductivity of Graphene
- Rayleigh Imaging of Graphene and Graphene Layers
- Spectroscopic ellipsometry of graphene and an exciton-shifted van Hove peak in absorption
- Ultrafast Photoluminescence from Graphene
- Electron Transport and Hot Phonons in Carbon Nanotubes
- Non-equilibrium dynamics of photo-excited electrons in graphene: collinear scattering, Auger processes, and the impact of screening
Cited by in corpus (6)
- Optical modulators with two-dimensional layered materials
- Black phosphorus a new saturable absorber material for ultrashort pulse generation
- Electrically Tunable Optical Nonlinearities in Graphene-Covered SiN Waveguides Characterized by Four-Wave Mixing
- Wavelength tunable soliton rains in a nanotube-mode locked Tm-doped fiber laser
- Scalar Nanosecond Pulse Generation in a Nanotube Mode-Locked Environmentally Stable Fiber Laser
- Engineering THz-frequency light generation, detection and manipulation through graphene