Novel add-drop filter based on serial and parallel photonic crystal ring resonators (PCRR)

2022 ◽  
Vol 0 (0) ◽  
Author(s):  
Hassan Falah Fakhruldeen ◽  
Heba Abdul-Jaleel Al-Asady ◽  
Tayebeh Mahinroosta ◽  
Foozieh Sohrabi ◽  
Seyedeh Mehri Hamidi
Keyword(s):  
Photonic Crystal ◽  
Integrated Circuits ◽  
Ring Resonators ◽  
Power Splitter

Abstract Photonic crystal ring resonators (PCRR) as momentous candidates for future photonic crystal integrated circuits (PCICs) draw worldwide attention. In this paper, different configurations are proposed based on single, parallel, and serial PCRRs. To be precise, the different coupling lengths and alignments have been discussed in double and triple PCRRs in parallel and serial configurations to achieve the highest efficiency concerning the desired applications such as an add-drop filter (ADF) and a power splitter. Moreover, in the achieved optimum double and triple PCRRs, the effect of coupling radius change has been discussed.

Transmission performance of 1×2 type photonic crystal power splitter based on ring resonators

2011 ◽  
Vol 23 (10) ◽  
pp. 2795-2800
Author(s):  
吴立恒 Wu Liheng ◽  
王明红 Wang Minghong ◽  
徐明星 Xu Mingxing
Keyword(s):  
Photonic Crystal ◽  
Ring Resonators ◽  
Transmission Performance ◽  
Power Splitter

Proposal for high efficiently 1×4 power splitter based on photonic crystal waveguides

2015 ◽  
Vol 29 (15) ◽  
pp. 1550073 ◽  
Author(s):  
Hong Wang ◽  
Lingjuan He
Keyword(s):  
Photonic Crystal ◽  
Integrated Circuits ◽  
Photonic Integrated Circuits ◽  
Optical Power ◽  
Input Power ◽  
Photonic Crystal Waveguides ◽  
Defect Region ◽  
Power Splitter ◽  
Practical Applications ◽  
Total Transmittance

We proposed a new kind of 1×4 optical power splitter composed of one input photonic crystal (PC) waveguide (PCW) and two PC branches with a triangular lattice of air holes. By employing the coupling between a defect region and one input, four output PCWs, the input power can be efficiently split into four output ports. The total transmittance as high as 99.4% at the wavelength 1550 nm is achieved. By modifying two holes at junction area, the input power can be almost evenly split into four parts with a bandwidth larger than 80 nm. It provides a new method and a compact model to split input power into multiple output ports in PCW devices and may find practical applications in future photonic integrated circuits.

An all optical photonic crystal half adder suitable for optical processing applications

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Hamed Azhdari ◽  
Sahel Javahernia
Keyword(s):  
Photonic Crystal ◽  
Optical Waveguides ◽  
High Speed ◽  
Building Blocks ◽  
Optical Signal ◽  
Ring Resonators ◽  
Optical Processing ◽  
Nonlinear Photonic Crystal ◽  
Half Adder ◽  
All Optical

Abstract Increasing the speed of operation in all optical signal processing is very important. For reaching this goal one needs high speed optical devices. Optical half adders are one of the important building blocks required in optical processing. In this paper an optical half adder was proposed by combining nonlinear photonic crystal ring resonators with optical waveguides. Finite difference time domain method wase used for simulating the final structure. The simulation results confirmed that the rise time for the proposed structure is about 1 ps.

Design and Simulation of a Fast All-Optical Modulator Based on Photonic Crystal Using Ring Resonators

Silicon ◽  
2021 ◽  
Author(s):  
Mohammad Moradi ◽  
Masoud Mohammadi ◽  
Saeed Olyaee ◽  
Mahmood Seifouri
Keyword(s):  
Photonic Crystal ◽  
Ring Resonators ◽  
Optical Modulator ◽  
All Optical

Multimode-Interference-Based Waveguide Crossing in Two-Dimensional Cubic Photonic Crystal

2013 ◽  
Vol 284-287 ◽  
pp. 2876-2879
Author(s):  
Yih Bin Lin ◽  
Jen Hao Cheng ◽  
Rei Shin Chen ◽  
Ting Chung Yu ◽  
Ju Feng Liu ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Integrated Circuits ◽  
Expansion Method ◽  
Transmission Efficiency ◽  
Multimode Interference ◽  
Plane Wave Expansion Method ◽  
Modal Dispersion ◽  
Optical Integrated Circuits ◽  
Difference Time ◽  
Novel Design

A novel design of photonic crystal waveguide crossing based on multimode-interference (MMI) structure is proposed. Two structures of difference device lengths are simulated and studied. The proposed structures have high transmission efficiency for a wide bandwidth. The crosstalk is -26dB with device length of 12 lattice periods and -39dB with device length of 24 lattice periods. The plane wave expansion method and finite-difference time-domain method are used to calculate the modal dispersion curve and field propagation, respectively. The proposed MMI-based waveguide crossing has the potential to be practical in high-density optical integrated circuits.

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