scholarly journals Complex-Coefficient Microwave Photonic Filter Based on Orthogonally Polarized Optical Single-Sideband Modulation

2021 ◽  
Author(s):  
Jinwang Qian ◽  
Junling Sun ◽  
Pengge Ma ◽  
Xinlu Gao ◽  
Shanguo Huang
Keyword(s):  
Phase Shift ◽  
Phase Shifter ◽  
Center Frequency ◽  
Complex Coefficient ◽  
Microwave Photonic ◽  
Single Sideband ◽  
Single Sideband Modulation ◽  
Optical Single Sideband ◽  
Spectral Ranges ◽  
Continuous Tunability

A complex-coefficient microwave photonic filter with continuous tunability is proposed and experimentally demonstrated. The filter taps are based on a 360° tunable microwave photonic phase shifter, which is realized by orthogonally polarized optical single-sideband (OSSB) modulation. The experimental results are shown and regarded as good performance for the proposed filter. The phase shift for the two taps covers a full 360° range from 8 GHz to 26 GHz. Frequency responses with different center frequency are measured within 20–21 GHz with the full free spectral ranges (FSRs) of 185 MHz and 285 MHz, respectively.

scholarly journals A Linearized Optical Single-Sideband Modulation Analog Microwave Photonic Link Using Dual Parallel Interferometers

2013 ◽  
Vol 5 (5) ◽  
pp. 5501712-5501712 ◽  
Author(s):  
Zihang Zhu ◽  
Shanghong Zhao ◽  
Qinggui Tan ◽  
Wei Jiang ◽  
Yongjun Li ◽  
...  
Keyword(s):  
Microwave Photonic ◽  
Single Sideband ◽  
Single Sideband Modulation ◽  
Optical Single Sideband

Optical-to-RF phase shift conversion-based microwave photonic phase shifter using a fiber Bragg grating

2013 ◽  
Vol 39 (1) ◽  
pp. 142 ◽  
Author(s):  
Xudong Wang ◽  
Erwin H. W. Chan ◽  
Robert A. Minasian
Keyword(s):  
Phase Shift ◽  
Fiber Bragg Grating ◽  
Phase Shifter ◽  
Bragg Grating ◽  
Microwave Photonic

scholarly journals Pilot-assisted intradyne reception for high-speed continuous-variable quantum key distribution with true local oscillator

Quantum ◽  
2019 ◽  
Vol 3 ◽  
pp. 193 ◽  
Author(s):  
Fabian Laudenbach ◽  
Bernhard Schrenk ◽  
Christoph Pacher ◽  
Michael Hentschel ◽  
Chi-Hang Fred Fung ◽  
...  
Keyword(s):  
Quantum Key Distribution ◽  
High Speed ◽  
Local Oscillator ◽  
Continuous Variable ◽  
Excess Noise ◽  
Phase Matching ◽  
Optical Frequency ◽  
Single Sideband ◽  
Single Sideband Modulation ◽  
Optical Single Sideband

We present a pilot-assisted coherent intradyne reception methodology for CV-QKD with true local oscillator. An optically phase-locked reference tone, prepared using carrier-suppressed optical single-sideband modulation, is multiplexed in polarisation and frequency to the 250 Mbaud quantum signal in order to provide optical frequency- and phase matching between quantum signal and local oscillator. Our concept allows for high symbol rates and can be operated at an extremely low excess-noise level, as validated by experimental measurements.

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