Zobrazeno 1 - 10
of 191
pro vyhledávání: '"M.R. Gokhale"'
Autor:
V.P. Salvi, D. Kanjilal, A.R. Damle, Brij M. Arora, M.R. Gokhale, Yousuf Pyar Ali, A.M. Narsale
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 168:229-236
Single crystal GaAs substrates implanted with 100 MeV 28Si ions have been investigated by optical transmission over photon energy range 0.7–1.4 eV. The αx values increase with increasing dose until samples are nearly opaque (αx>1) over the entire
Publikováno v:
Journal of Crystal Growth. 203:302-308
The synthesis of thallium containing III–V compounds for long wavelength (>1.7 μm) photonic device applications is investigated using gas-source molecular beam epitaxy. With this approach, we attempted the growth of homogenous InTlP and InGaTlAs a
Publikováno v:
IEEE Journal of Quantum Electronics. 33:1407-1416
We describe InP-InGaAs optoelectronic smart pixels for applications in optical interconnection and computing. These circuits consist of monolithically integrated p-i-n photodiodes, heterojunction bipolar transistor (HBT) receivers and transmitters, a
Publikováno v:
IEEE Journal of Quantum Electronics. 33:2266-2276
We describe the design and experimental results for high-power, high-efficiency, low threshold current, 0.98-/spl mu/m wavelength, broadened waveguide (BW) aluminum-free InGaAs-(In)GaAs(P)-InGaP lasers. The decrease in the internal losses with an inc
Publikováno v:
IEEE Photonics Technology Letters. 16:2221-2223
Lasers based on asymmetric twin waveguide integration technology are limited by the necessity of pumping the tapers to avoid absorption losses within this section of the active region. Here, we demonstrate that the threshold current is reduced by arg
Publikováno v:
IEEE Photonics Technology Letters. 13:845-847
We describe a high-bandwidth high-responsivity low-polarization sensitivity p-i-n photodiode based on an integratable asymmetric twin-waveguide structure. Incident light is collected by a diluted large-fiber guide followed by transfer to a thin-coupl
Publikováno v:
IEEE Photonics Technology Letters. 13:600-602
We demonstrate monolithic integration of a twin-waveguide Mach-Zehnder terahertz optical asymmetric demultiplexer (MZ-TOAD). The InGaAsP-InP device operates at 1.55 /spl mu/m wavelength and has two semiconductor optical amplifiers in the asymmetric M
Publikováno v:
IEEE Photonics Technology Letters. 12:468-470
We demonstrate a single frequency, 1.55 /spl mu/m wavelength laser based on an asymmetric twin-waveguide structure using a single growth step and a simple fabrication process. The external Bragg grating is formed on the passive ridge waveguide, optic
Publikováno v:
IEEE Photonics Technology Letters. 12:131-133
We demonstrate high-performance Al-free InGaAsN-GaAs-InGaP-based long-wavelength quantum-well (QW) lasers grown on GaAs substrates by gas-source molecular beam epitaxy using a RF plasma nitrogen source. Continuous wave (CW) operation of InGaAsN-GaAs
Publikováno v:
IEEE Photonics Technology Letters. 12:68-70
We demonstrate InGaAsPN p-i-n photodetectors lattice-matched to InP substrates with cutoff wavelengths larger than 1.65 /spl mu/m. The narrow bandgap InGaAsPN absorption layers were grown by gas source molecular beam epitaxy using an RF plasma nitrog