Sökning: "polarization-insensitive"

Visar resultat 1 - 5 av 7 avhandlingar innehållade ordet polarization-insensitive.

1. 1. Integrated Nanophotonic Devices in Lithium Niobate

   Författare :Mohammad Amin Baghban; Katia Gallo; Fabrice Raineri; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Lithium niobate LN ; LN-on-insulator; photonic integrated circuits; nonlinear optics; electro-optics; waveguides; propagation losses; Bragg gratings; grating couplers; polarization-insensitive; LN for life sciences; Fysik; Physics;

   Sammanfattning : Lithium niobate (LN) is a ferroelectric crystal offering a broad transparency spectrum, together with excellent electro-optic and nonlinear optical properties. Thanks to them, LN is setting the standard for quantum optics and telecommunications in critical applications such as ultrafast modulation and frequency conversion. LÄS MER

3. 2. Multifunctional Waveguide Grating Couplers for Integrated Optics

   Författare :Johan Backlund; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : This thesis describes a novel waveguide component in integrated optics called a multifunctional grating coupler. It couples light in or out of optical waveguides and provides additional optical functions such as beam splitting, arbitrary focusing, polarization sensing, and wavelength separation (wavelength division demultiplexing). LÄS MER

4. 3. Optical Phase Conjugation and All-Optical Demultiplexing using Four-Wave Mixing in Dispersion Shifted Fibers

   Författare :Per Olof E Hedekvist; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dispersion compensation; nonlinear fiber optics; high-speed communication; four-wave mixing; parametric amplification; noise figure; wavelength conversion; optical phase conjugation; all-optical demultiplexer; mid-span spectral inversion;

   Sammanfattning : This thesis deals with two applications of four-wave mixing in optical dispersion-shifted fibers; optical phase conjugation and all-optical switching. The work is a part of an effort to study the upgradability of the existing fiber plant, which is of large economic interest. LÄS MER

5. 4. Design, Simulation and Characterization of Some Planar Lightwave Circuits

   Författare :Yaocheng Shi; Anand Srinivasan; Sailing He; Daniel Erni; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; planar lightwave circuit; waveguide; coupler; multimode interference; photonic crystal waveguide; de multiplexer; triplexer; polarization beam splitter; dry etching; carrier life time.; Photonics; Fotonik;

   Sammanfattning : Optical devices based on planar lightwave circuit (PLC) technology have the advantages of small size, high reliability, possibility for large scale production, and potential integration with electronics. These devices are widely employed in optical telecommunications, sensing, data storage, imaging, and signal processing. LÄS MER

7. 5. Design, Fabrication and Characterization of Planar Lightwave Circuits Based on Silicon Nanowire Platform

   Författare :Ning Zhu; Lech Wosinski; Richard De La Rue; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik;

   Sammanfattning : Optical devices based on Planar Lightwave Circuit (PLC) technology have well been studied due to their inherited advantages from Integrated Circuits (IC), such as: small size, high reliability, mass production and potential integration with microelectronics. Among all the materials, silicon nanowire platform gains more and more interest. LÄS MER