Graphene all-optical sensor based on nonlinear multimode interference coupler

2018 ◽  
Author(s):  
Wan Maryam Wan Ahmad Kamil ◽  
Mohd Zubir Mat Jafri ◽  
Mohammad Adnin Abdul Hassim
Keyword(s):  
Optical Sensor ◽  
Multimode Interference ◽  
All Optical ◽  
Multimode Interference Coupler

All-Optical Half Adder Based on a 2x2 Multimode Interference Coupler

2018 ◽  
Vol 4 (1) ◽  
pp. 9
Author(s):  
Dao Duy Tu ◽  
Linh Duc Tam Ho ◽  
Dung Truong Cao ◽  
Hung Tan Nguyen
Keyword(s):  
Optical Networks ◽  
Logic Gate ◽  
Extinction Ratio ◽  
Optical Signal ◽  
Multimode Interference ◽  
Optical Logic ◽  
Index Method ◽  
Half Adder ◽  
All Optical ◽  
Multimode Interference Coupler

In this paper, an all-optical logic gate based on 2x2 (MMI) multimode interference coupler is theoretically designed and simulated using three-dimensional beam propagation method (3D-BPM) and effective index method (EIM) to analyze and evaluate the performance of the device. The proposed device is used to convert phase information of input optical signals to amplitude at the output ports of MMI. With this mechanism, the device can operates as a logical half adder. Simulation results show that the optical half adder archives with insertion loss and extinction ratio from ON to OFF logic–level below 0.7 dB and over 40 dB, respectively. Furthermore, wide bandwidth of 100nm is also an advantage of this devices. Therefore, it can be applied to all optical signal processing in next generation optical networks as well as in photonics integrated circuits.

scholarly journals Biofouling of an All-Optical Sensor for Seafloor Monitoring of Marine Carbon Capture and Storage Sites

2014 ◽  
Vol 63 ◽  
pp. 3848-3852 ◽  
Author(s):  
Sonja Bhatia ◽  
David Risk ◽  
Amanda Pustam ◽  
Truis Smith-Palmer ◽  
Geoff Burton ◽  
...  
Keyword(s):  
Optical Sensor ◽  
Carbon Capture ◽  
Carbon Capture And Storage ◽  
All Optical ◽  
And Storage

scholarly journals Label-free single-molecule all-optical sensor

2008 ◽  
Author(s):  
Andrea M. Armani ◽  
Scott E. Fraser ◽  
Richard C. Flagan
Keyword(s):  
Single Molecule ◽  
Optical Sensor ◽  
Label Free ◽  
All Optical
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