The ultra narrow-band fiber grating filter
Through numerical simulation and experiment investigation, a narrow-band output spectrum with 1064 nm center wavelength and 0.017 nm bandwidth is obtained. It may find a certain
Impact of dispersion on the bandwidth of long-period fiber-grating filters
In this paper we show how the bandwidth of long-period fiber-grating filters can be predicted simply and accurately. In addition, we demonstrate how fiber dispersion affects the filter characteristics more
Moiré volume Bragg grating filter with tunable bandwidth
Analytical expressions for the tunable bandwidth of such a filter are calculated and experimental data from a filter operating at 1064 nm with bandwidth range 30-90 pm is demonstrated.
Fiber Bragg grating
As shown above, in the strong grating limit (i.e., for large ) the bandwidth depends on the grating strength, and not the grating length. This means the grating strength can be used to set the bandwidth.
Fiber Bragg Gratings – FBG, index modulation, filters, fiber-optic sensors
The reflection bandwidth of a fiber grating, which is typically well below 1 nm, depends on both the length and the strength of the refractive index modulation.
Fiber Bragg Grating Calculator
Professional fiber Bragg grating calculator for FBG design and analysis. Calculate Bragg wavelength, reflection characteristics, and optimize FBG parameters for telecommunications, sensing, and laser
Optimal design of single resonant and ultrabroadband long-period
H. Jeong and K. Oh, “Enhancement of free spectral range of the resonance peaks in a long-period fiber grating by controlling material dispersion of cladding modes,” Opt. Commun. 199, 103–110 2001 .
Analysis of the bandwidth of resonant spectra for tilted fiber grating
Abstract: coupled-mode equations, the formula of fiber grating is deduced in this paper. Numerical simulations and theoretical analysis of the effects of the tilt angle on bandwidth and maximum
(PDF) Phase-shifted fiber Bragg grating filters based on counter
We show that the transmission spectrum of the counter-propagating cladding mode assisted FBGs can be tailored by incorporating single or multiple phase shifts along the grating length.
Design of Multistage Fiber Bragg Grating (FBG) with Variable
In this model, it is proposed to use cascaded uniform Fiber Bragg Grating (UFBGs) with various lengths, a constant grating period, and a constant gap between FBGs.
Optical Power Meters & Sources
High-precision power meters (Ge/InGaAs) and stabilized light sources for insertion loss and return loss testing.
OTDR & Fiber Characterization
Full-featured OTDR, fiber OTDR testers, and modular OTDR test modules for network deployment and troubleshooting.
OSA & Eye Diagram Analyzer
High-resolution OSA for DWDM and eye diagram testers for signal integrity validation.
BERT & Endface Inspection
BERT up to 800G, fiber endface inspection probes, and extinction ratio meters for comprehensive testing.