Silicon oxynitride-based arrayed waveguide grating (AWG) spectrometers were designed for on-chip spectral-domain optical coherence tomography (OCT) systems and Raman spectroscopy of the skin. A novel geometrical layout for Raman spectroscopy was introduced to reduce loss. Measurements show that integrated optics has a good potential for miniaturizing current OCT systems. Keywords-arrayed wavegu...

The polarization dependency of an arrayed-waveguide grating (AWG) in an optical low-coherence reflectometry system is investigated. For mixed polarization, signal fading is observed at specific depths. This fading is eliminated by using a nonbirefringent AWG. Keywords-arrayed waveguide grating; Non-Birefringent waveguides; Optical Low-coherence Reflectometry

We present a novel arrayed-waveguide-grating (AWG) device with improved external (biomedical) signal collection for use in on-chip spectroscopy. The collection efficiency of the device is compared to that of a standard AWG. We also present experimental results on the collection efficiency and size of the collection volume. Keywords-arrayed waveguide grating; spectroscopy; integrated optics

We present results from a laboratory characterization of integrated photonic arrayed-waveguide grating chips, which are a modified version of commercial arrayed-waveguide grating multiplexors, for the purposes of creating an integrated photonic spectrograph. Using a robust probing setup we measure the peak total efficiency of the chips to be ~75%. We measure the spectral resolution full-width h...

This paper discusses design, fabrication, and characterization of a 512 × 512 arrayed waveguide grating router (AWGR) with a channel spacing of 25 GHz. The dimensions of the AWGR is 16 mm × 11 mm and is fabricated on a 250 nm silicon-on-insulator platform. The measured channel crosstalk is approximately −4 dB without any compensation for the phase errors in the arrayed waveguides. The AWGR spec...

In the present paper, high transmission bit rate of a thermal arrayed waveguide grating (AWG) which is composed of lithium niobate (LiNbO3)/polymethyl metha acrylate (PMMA) hybrid materials on a silicon substrate in Passive Optical Networks (PONs) has parametrically analyzed and investigated over wide range of the affecting parameters. We have theoretically investigated the temperature dependen...

In the present paper, we have investigated parametrically and numerically the low loss a thermal arrayed waveguide grating (AWG) which is composed of lithium niobate (LiNbO3)/polymer/silica-doped hybrid materials on a silicon substrate module for Passive and active optical Network applications. The modeling has parametrically analyzed and investigated over wide range of the affecting parameters...