Tunable multiband microwave photonic filters

MP Fok, J Ge - Photonics, 2017 - mdpi.com
The increasing demand for multifunctional devices, the use of cognitive wireless technology
to solve the frequency resource shortage problem, as well as the capabilities and …

Tunable multiwavelength fiber laser using a comb filter based on erbium-ytterbium co-doped polarization maintaining fiber loop mirror

G Sun, DS Moon, A Lin, WT Han, Y Chung - Optics Express, 2008 - opg.optica.org
A tunable comb filter based on a fiber loop mirror setup, which incorporates a piece of
pumped erbium-ytterbium co-doped polarization maintaining fiber, is newly presented. It is …

Polarization-independent, multifunctional all-fiber comb filter using variable ratio coupler-based Mach–Zehnder interferometer

ZC Luo, WJ Cao, AP Luo, WC Xu - Journal of lightwave …, 2012 - ieeexplore.ieee.org
A polarization-independent, multifunctional all-fiber comb filter by using variable ratio
coupler (VRC)-based dual-pass Mach-Zehnder interferometer is newly proposed and …

Spacing-adjustable multi-wavelength source from a stimulated Brillouin scattering assisted erbium-doped fiber laser

MP Fok, C Shu - Optics express, 2006 - opg.optica.org
We demonstrate room-temperature operation of a spacing-adjustable multi-wavelength
erbium-doped fiber laser using stimulated Brillouin scattering. With the use of an intra-cavity …

Photonic polarity-switchable ultra-wideband pulse generation using a tunable Sagnac interferometer comb filter

J Li, K Xu, S Fu, M Tang, P Shum… - IEEE Photonics …, 2008 - ieeexplore.ieee.org
A photonic approach to polarity-switchable ultra-wideband (UWB) pulse generation is
proposed. The proposed setup principally consists of an electrooptic phase modulator …

Multiwavelength switchable erbium-doped fiber ring laser with a PBS-based Mach–Zehnder comb filter

AP Luo, ZC Luo, WC Xu - IEEE Photonics Journal, 2011 - ieeexplore.ieee.org
We propose and demonstrate a multiwavelength switchable fiber ring laser by employing a
simple but novel polarization beam splitter (PBS)-based Mach-Zehnder (MZ) comb filter. The …

Second-order all-fiber comb filter based on polarization-diversity loop configuration

YW Lee, HT Kim, YW Lee - Optics Express, 2008 - opg.optica.org
By concatenating three birefringence loops in series, a second-order all-fiber comb filter
based on a polarization-diversity loop configuration is newly proposed. The proposed filter …

Tunable dual-wavelength erbium-doped fiber laser stabilized by four-wave mixing in a 35-cm highly nonlinear bismuth-oxide fiber

MP Fok, C Shu - Optics express, 2007 - opg.optica.org
Using four-wave mixing in a 35-cm highly nonlinear bismuth-oxide fiber incorporated in an
erbium-doped fiber laser, a stable dual-wavelength output is obtained. The spectral spacing …

Cascaded and multisection Sagnac interferometers for scalable and tunable all-optical OFDM DEMUX

J Du, C Shu - Journal of lightwave technology, 2013 - ieeexplore.ieee.org
With cascaded and multisection Sagnac interferometers, all-optical fast Fourier transform
(FFT) has been demonstrated for optical demultiplexing (DEMUX) of orthogonal frequency …

Study on spectral deviations of high-order optical fiber comb filter based on polarization-diversity loop configuration

Y Kim, YW Lee - Optics Communications, 2013 - Elsevier
In this paper, we investigate optical factors that may cause deviations of experimentally
observed output spectra from theoretically predicted ones in a high-order optical fiber comb …