Designing a photonic crystal fiber for an ultra-broadband parametric amplification in telecommunication region

2016 ◽  
Vol 25 (02) ◽  
pp. 1650023 ◽  
Author(s):  
Hassan Pakarzadeh ◽  
Mostafa Taghizadeh ◽  
Mohsen Hatami

A photonic crystal fiber (PCF) with a zero-dispersion wavelength (ZDW) in the telecommunication region is designed and an ultra-broadband fiber optical parametric amplifier (FOPA) based on such PCF is simulated. Results show that the PCF-based FOPA exhibits much higher gain with a very broad bandwidth (covering O- to U-band) in comparison with the highly nonlinear fiber (HNLF)-based FOPA. Also, the required fiber length and the input pump power are reduced for the PCF-based FOPA. The obtained results show the great potential of the PCF-based OPA for the telecommunication applications, e.g. amplification of wavelength-division multiplexing (WDM) signals.

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Monika Kiroriwal ◽  
Poonam Singal

Abstract An AlGaAs based standard photonic crystal fiber structure is reported for low dispersive nonlinear optics applications. By employing a finite element solver with perfectly matched layer boundary condition, the key propagation characteristics are investigated over a broad wavelength span (1–5 μm) by taking the different air filling fraction values. The proposed work provides an effective fundamental mode area of 7.30 μm2 with nonlinearity in the order of 8.325 W−1m−1 at a low absorption wavelength of 1.55 μm and zero-dispersion wavelength close to 3 μm.


2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Mohammed Debbal ◽  
Mouweffeq Bouregaa ◽  
Hicham Chikh-Bled ◽  
Mohammed El Kebir Chikh-Bled ◽  
Mohammed Chamse Eddine Ouadah

AbstractThis paper describes study of photonic crystal fiber (PCF) in order to study the influence of temperature on the chromatic dispersion; these types of fibers are based on commercial structures, but air holes will be infiltrated with water. Using finite domain-beam propagation method, it is shown that the zero dispersion wavelength can be shifted from 1.058753 to 1.271767 µm, a shift of 213 nm. At 50 °C, a shift of 169 nm.As a result, we reveal that the proposed PCF can successfully compensate for the chromatic dispersion by the influence of temperature. Furthermore, the design model and methodology can be applied to design other dispersion-based devices, such as dispersion-flattened fibers and dispersion-shifted fibers, or can be used also as a sensor of temperature.


2016 ◽  
Vol 8 (4) ◽  
pp. 29 ◽  
Author(s):  
M. R. Karim ◽  
B. M. A. Rahman

We numerically investigate the use of photonic crystal fiber (PCF) through dispersion engineering of its cladding containing air-holes for supercontinuum (SC) generation in the mid-infrared region using low peak power. A 3.6-cm-long PCF made using Ge11.5As24Se64.5 chalcogenide (ChG) glass with a hexagonal array of air-holes was optimized for obtaining zero-dispersion wavelength through dispersion tailoring around the pump wavelength of 4 μm. We have performed numerical simulations for such dispersion tailored ChG PCF with the peak power range between 0.25 kW and 2 kW. It was found through rigorous numerical simulations that an ultrabroadband mid-infrared SC spectra covering the wavelength range 2-8 μm which is equivalent to 2 octaves could be generated using pump pulses of 320 fs duration at a wavelength of 4 μm with a relatively low peak power of 2 kW by using our proposed ChG PCF design.


Nanomaterials ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 845 ◽  
Author(s):  
Dror Malka ◽  
Gilad Katz

A novel eight-channel demux device based on multicore photonic crystal fiber (PCF) structures that operate in the C-band range (1530–1565 nm) has been demonstrated. The PCF demux design is based on replacing some air-hole areas with lithium niobate and silicon nitride materials over the PCF axis alongside with the appropriate optimizations of the PCF structure. The beam propagation method (BPM) combined with Matlab codes was used to model the demux device and optimize the geometrical parameters of the PCF structure. The simulation results showed that the eight-channel demux can be demultiplexing after light propagation of 5 cm with a large bandwidth (4.03–4.69 nm) and cross-talk (−16.88 to −15.93 dB). Thus, the proposed device has great potential to be integrated into dense wavelength division multiplexing (DWDM) technology for increasing performances in networking systems.


Optik ◽  
2017 ◽  
Vol 147 ◽  
pp. 197-203 ◽  
Author(s):  
Rahul Kumar Gangwar ◽  
Akhilesh Kumar Pathak ◽  
Payal Priyadarshani ◽  
Vinod Kumar Singh

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