Results 21 to 30 of about 43,172 (307)
Novel tuneable filter based on MZ and an amplified ring resonator for OFDM networks [PDF]
, 1999 IEEE Lasers and Electro-Optics Society. 1999 Annual Meeting. 8-11 November 1999. San Francisco, CAA novel reconfigurable fibre based tuneable filter is proposed.
Vázquez García, María Carmen +4 more
core +1 more source
IEEE Photonics Journal, 2015 The wavelength-tunable filter is a key device for creating colorless, directionless, and contentionless reconfigurable optical add-drop multiplexers.
Shoichi Takashina +4 more
doaj +1 more source
A tunable WDM wavelength converter based on cross phase modulation effects in normal dispersion holey fiber [PDF]
, 2003 We demonstrate a tunable wavelength-division-multiplexing wavelength converter based on cross-phase modulation in just 5.8m of highly nonlinear normal dispersion holey fiber (HF) and incorporating a precise compression-tuned apodized fiber-grating filter.
Lee, J. +8 more
core +1 more source
, 2022 Tunable filters enable dynamic spectrum access for the wireless systems, and the tunable bandpass filters with constant bandwidth (BW) are most favorable for practical applications. This chapter investigates the synthesis and realization techniques for the tunable filters using the coupling matrix with variable entries synthesizes the tunable filter ...
openaire +1 more source
Concept for Continuously Tunable Output Filters for Digital Transmitter Architectures
IEEE Access, 2019 This paper presents a novel output filter approach for continuously frequency-tunable digital power amplifiers, suitable for future seamless and band-less applications in 5G, e.g. for cognitive radios (CR). The presented tunable output filter is based on
Christian Schuster +8 more
doaj +1 more source
Greater than 90nm continuously wavelength-tunable fibre Bragg gratings [PDF]
, 2003 We report silica-based fibre Bragg grating filters with wavelength tuning-spans well over 90nm using a simple set-and-forget beam bending tuning-package.
Butler, S.A. +11 more
core +1 more source
Design of programmable multi-wavelength tunable filter on lithium niobate
Results in Physics, 2019 Tunable optical filters have a wide range of applications, especially in optical sensing systems and optical communication systems. In this letter, a programmable multi-wavelength tunable filter on Lithium Niobate (LN) is designed.
Yuan Yao +6 more
doaj +1 more source
Design of tunable microstrip bandstop filter
2016 Asia-Pacific Microwave Conference (APMC), 2016 In this paper, a novel microstrip bandstop filter with tunable center frequency and bandwidth is introduced. A dual-mode square loop resonator and three varactor diodes are used to achieve the tunability operation. The dual-mode square loop resonator is coupled to a straight transmission line that connects input and output ports.
Gorur, A.K. +4 more
openaire +7 more sources
Actively mode-locked multiwavelength fibre ring laser incorporating a lyot filter, hybrid gain medium and birefringence compensated LiNbO3 modulator [PDF]
, 2007 A lyot filter based actively mode-locked multiwavelength fibre ring laser with a hybrid gain medium, consisting of an SOA and EDFA, is presented. Simultaneous mode-locking of up to 8 wavelength channels at 10 GHz is realised using a LiNbO3 based Mach ...
Anandarajah, Prince M. +12 more
core +1 more source
Role of Nanoimprint Lithography for Strongly Miniaturized Optical Spectrometers
Nanomaterials, 2021 Optical spectrometers and sensors have gained enormous importance in metrology and information technology, frequently involving the question of size, resolution, sensitivity, spectral range, efficiency, reliability, and cost.
Hartmut Hillmer +7 more
doaj +1 more source