This paper presents a high responsivity InGaAs / InP PIN photodetector bonded on silicon-on-insulator (SOI) waveguide circuit with a Si waveguide width of 2000 nm. Divinyltetramethyldisiloxane-benzocyclobutene (DVS-BCB) is used to integrate the InGaAs/InP film epitaxial layers onto the silicon waveguide wafer. A grating coupler is adopted to couple light from the fiber to the Si waveguide.
Light in the Si photonic waveguide is evanescently coupled into the InP ridge waveguide and can finally be absorbed in the absorption layer. The simulation results show that the detection efficiency can reach 95%. The measured detector responsivity is 0.87 A/W (excluding the coupling loss between the fiber and the grating coupler and the silicon propagation loss) at a wavelength of 1550nm and a bias voltage of −3V.
Continue Reading
Emerging markets looks cloud computing as a facilitator to lower their investments related to ICT. Unlimited throughput, on demand and elastic nature of cloud attracted the medium and large scale…
Transparent glass-ceramics, activated by luminescent species, present an important class of photonic materials because their specific optical, spectroscopic and structural properties. Several top-down and bottom-up techniques have been developed for…
A method for scale length determination of Gate all around (Octagonal cross section) Junctionless Transistor is reported in this paper. The scale length expression is obtained by solving the 3D…
In polarized synthetic aperture radar (SAR) image classification, texture produces very significant information about land cover. In order to perform the classification in a much better way, a detailed study…
This paper presents an architectural design of elastic service frameworks based on OSGi service platforms. Load-balancing and auto-scaling features, among others, are considered as the most essential to enabling the…
In this paper we present the possibilities of cheap diagnostics based on optical fiber sensors and fluorescence lifetime measurements. Early diagnostics of pathological tissue changes, especially when it comes to…
Diabetic Retinopathy is one of the complicated diseases and it is caused by the changes in the blood vessels of the retina. Extraction of retina image through Fundus camera sometimes…
Diabetic Retinopathy occurs in patients who suffer from diabetes for many years and as a result of which the vision gets affected. The affect can be low to severe depending…
We report a high-efficiently-pumped Tm-Ho co-doped fiber laser Q-switched by graphene saturable absorber. The home-made 1212 nm Raman fiber laser with output power of ∼200 mW was directly launched into…