Generation and Transmission of Optical Carrier Suppressed-Optical Differential (Quadrature) Phase-Shift Keying (OCS-OD(Q)PSK) Signals in Radio Over Fiber Systems

Chang, Qingjiang; Tian, Yue; Gao, Jianxi; Ye, Tong; Li, Qiang; Su, Yikai

doi:10.1109/jlt.2008.927592

Cited by 29 publications

(7 citation statements)

References 25 publications

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“…Recently, photonic generations of microwave signals with different modulation formats, including amplitude shift keying (ASK), phase shift keying (PSK), and high-order modulation formats, have attracted increasing attentions [6][7][8][9][10][11][12][13][14][15][16][17][18]. In Ref [6,7], optical carrier suppression (OCS)-ASK signal can be used to generate microwave ASK signal.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, photonic generation of phase-coded microwave signal has been proposed in optical domain, which can reduce the system complexity and increase the RF frequency of the generated signal [8][9][10][11][12][13]. High-order modulation formats, such as microwave amplitude differential phase shift keying (ADPSK), quaternary phase shift keying (QPSK), and quadrature amplitude modulation (QAM) signals, have been demonstrated by using MWP [14][15][16][17]. However, microwave frequency shift keying (FSK) signal as a fundamental digital modulation format in wireless communication has rarely been realized through photonic technology.…”

Section: Introductionmentioning

confidence: 99%

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Photonic generation of microwave frequency shift keying signal using a single-drive Mach–Zehnder modulator

Cao¹,

Hu²,

Zhang³

et al. 2014

Opt. Express

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We propose and experimentally demonstrate a new scheme for photonic generation of microwave frequency shift keying (FSK) signal by employing one single-drive Mach-Zehnder modulator (MZM). In the proposed method, an electrical signal with different radio frequency (RF) amplitudes and direct current (DC) components for bit '0' and bit '1' is generated. After amplification, the signal is fed into a single-drive MZM which is biased at the quadrature and null points of its transmission curve for bit '0' and bit '1', respectively. Due to the different RF amplitudes, a microwave FSK signal can be obtained after photodetection, where the space frequency is the same as the RF frequency and the mark frequency is twice as large as the RF frequency. The feasibility of the proposed scheme is verified by a proof-of-concept experiment. 5/10-GHz and 10/20-GHz microwave FSK signals with different bit rates are successfully demonstrated.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Photonic generation of microwave frequency shift keying signal using a single-drive Mach–Zehnder modulator

Cao¹,

Hu²,

Zhang³

et al. 2014

Opt. Express

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“…Among the method that have been mentioned, dual‐sideband optical carrier suppression (DSB‐OCS) mm‐wave carrier generation technique can be attractive, because it requires only half of the intended frequency at CS to produce the actual mm‐wave signal at RAU . It also offers better spectral efficiency , produces tunable mm‐wave carrier , and utilizes fewer and smaller components to generate the optical mm‐wave carrier compared to the other techniques mentioned. These factors will give benefit to scale down the size of CS and reduce design complexity.…”

Section: Introductionmentioning

confidence: 99%

40-GHz ROF downlink system with SFP modules

Yaakob

Idrus

Samsuri

et al. 2014

Microw. Opt. Technol. Lett.

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40‐GHz radio over fiber (ROF) downlink system is constructed with the dual‐sideband optical carrier suppression technique using Mach–Zehnder modulator. Small form pluggable (SFP) module is used as the optical source at the central station. 1.25‐Gbps data are directly modulated into the system via laser diode at the SFP. Several SFP modules are evaluated for their performance to be used in this system. The results show that all the SFP modules have shown their highest capability up to the bit error rate of 10−9 with about 1‐dB power penalty to realize the 20‐km error free 40‐GHz ROF downlink system. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:900–903, 2014

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“…The Dual-Parallel Mach-Zehnder Modulator (DPMZM) could meet these requirements and has attracted much attention. Based on DPMZM, up till now, different modulation schemes have been demonstrated [3][4][5][6] .A simple and novel ROF system scheme is proposed and verified by simulation [7] , in which simultaneous modulation and transmission of 60-GHz RF and 10-Gb/s baseband signals with a DPMZM with SSB modulation to overcome fading effects caused by fiber chromatic dispersion.…”

Section: Introductionmentioning

confidence: 99%

The separation for simultaneous transmission of baseband and microwave signals in a radio-over-fiber system

Shen

Yang

et al. 2010

SPIE Proceedings

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Simultaneous generation and transmission of 10-Gb/s baseband signal and 20-GHz microwave signal with 155-Mb/s on-off-keying (OOK) data on a single wavelength over 50-km-long fiber link based on a dual-parallel Mach-Zehnder modulator (DPMZM) are investigated. After simultaneous modulation of the baseband signal and microwave signal at central office (CO), the hybrid signals are separated by interleaver(IL) or fiber Bragg grating (FBG) at base station (BS). The center wavelength spacing and bandwidth of IL, also the reflection ratio, center wavelength and bandwidth of FBG are to be considered carefully as the baseband and microwave signal are only tens of GHz spacing and hard to be separated with each other. Through theoretical analyses and simulation, for the demonstrated hybrid transmission system, the relations of Q factor with the reflection ratio and bandwidth of FBG are analyzed separately in different fiber links (SMF and DSF).

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Generation and Transmission of Optical Carrier Suppressed-Optical Differential (Quadrature) Phase-Shift Keying (OCS-OD(Q)PSK) Signals in Radio Over Fiber Systems

Cited by 29 publications

References 25 publications

Photonic generation of microwave frequency shift keying signal using a single-drive Mach–Zehnder modulator

Photonic generation of microwave frequency shift keying signal using a single-drive Mach–Zehnder modulator

40-GHz ROF downlink system with SFP modules

The separation for simultaneous transmission of baseband and microwave signals in a radio-over-fiber system

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