Improvements in the differential phase shift of magneto‐optic waveguides by loading with high refractive index overlayers

1989 ◽  
Vol 54 (5) ◽  
pp. 406-408 ◽  
Author(s):  
H. Inuzuka ◽  
Y. Okamura ◽  
S. Yamamoto
Keyword(s):  
Refractive Index ◽  
Phase Shift ◽  
High Refractive Index ◽  
Differential Phase Shift ◽  
Differential Phase ◽  
Magneto Optic

scholarly journals 1310 nm differential-phase-shift QKD system using superconducting single-photon detectors

2009 ◽  
Vol 11 (4) ◽  
pp. 045020 ◽  
Author(s):  
Lijun Ma ◽  
S Nam ◽  
Hai Xu ◽  
B Baek ◽  
Tiejun Chang ◽  
...  
Keyword(s):  
Phase Shift ◽  
Single Photon ◽  
Photon Detectors ◽  
Differential Phase Shift ◽  
Differential Phase ◽  
Single Photon Detectors

A fiber-based differential phase shift quantum key distribution scheme with higher key creation efficiency

2009 ◽  
Vol 282 (14) ◽  
pp. 3037-3039 ◽  
Author(s):  
Huani Zhang ◽  
Jindong Wang ◽  
Xiaobao Liu ◽  
Zhengjun Wei ◽  
Songhao Liu
Keyword(s):  
Phase Shift ◽  
Quantum Key Distribution ◽  
Key Distribution ◽  
Differential Phase Shift ◽  
Differential Phase ◽  
Distribution Scheme

Design and Performance Analysis of 2D OCDMA System with Polarization States

2016 ◽  
Vol 37 (4) ◽  
Author(s):  
Manisha Bharti ◽  
Ajay K. Sharma ◽  
Manoj Kumar
Keyword(s):  
Phase Shift ◽  
Polarization State ◽  
Phase Shift Keying ◽  
Modulation Formats ◽  
Differential Phase Shift ◽  
Differential Phase ◽  
Differential Phase Shift Keying ◽  
Shift Keying ◽  
Polarization States ◽  
Code Division Multiple

AbstractThis paper focuses on increasing the number of subscribers in optical code-division multiple access (OCDMA) system by using one of the features of light signal that it can be propagated in two polarization states. The performance of two-dimensional (2D) OCDMA system based on wavelength-time coding scheme by adding polarization state is investigated at varying data rates from 1 GHz to 6 GHz and for various modulation formats. It is reported that with increase in data rate of system, the performance of the system deteriorates due to polarization mode dispersion. Non-return to-zero (RZ), return to-zero (RZ), carrier suppressed return-to-zero (CSRZ) and differential phase shift keying (DPSK) modulation formats are simulated for a single user system with polarization. Investigations reveal that differential phase shift keying (DPSK) modulation format suits best to the proposed system and exhibit the potential to improve the flexibility of system for more number of users. The investigations are reported in terms of Q-factor, BER, received optical power (ROP) and eye diagrams.

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