Low-Drift Optoelectronic Oscillator Based on a Phase Modulator in a Sagnac Loop

Hosseini, S. Esmail; Banai, Ali; Kärtner, Franz X.

doi:10.1109/tmtt.2016.2640286

Cited by 34 publications

(9 citation statements)

References 79 publications

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“…5 shows the calculated sideband power generated due to small-signal optical delay modulation, direct small-signal phase modulation of light, and the combined effects. At low modulation frequencies, the sideband power is dominated by the delay modulation and drops as 1 1 () m Jf  with increasing frequency as predicted by (5), whereas at higher modulation frequencies the sideband power is dominated by the direct phase modulation and plateaus as given by (6). As a result, compared to an electrical VCO, larger sideband power can be achieved at higher modulation frequencies using the OEO system.…”

Section: In Loop Optical Phase Modulationmentioning

confidence: 93%

“…In certain beamformers [1] and radar systems [2], optical delay lines replace electrical delay lines as they have significantly lower loss, higher bandwidth, are more immune to electromagnetic interference, and, in integrated cases, occupy a much smaller chip area for the same delay. Optoelectronic oscillators (OEO) [3] are another class of systems where photonic techniques have been employed to generate either low phase noise [4], low drift [5], highly tunable [6] or linearly chirped [7,8] RF signals.…”

Section: Introductionmentioning

confidence: 99%

“…Sideband power vs increasing modulation frequency as predicted by(5) and (6) (Vπ=9V, VO=1.8V, Vm=0.065V, K=25MHz/V, η=1, C=1. Actual measurement conditions (η and C) discussed in Section 5).…”

mentioning

confidence: 99%

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Wideband Rapidly Tunable Delay-Controlled Optoelectronic Oscillator

Sanjari

Aflatouni

2020

IEEE Photonics J.

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With the recent advancements in photonic integrated circuits, integrated RF photonics has increasingly been considered as a viable avenue to meet the demands of many emerging applications in telecommunication, sensing and signal processing. In this paper, an integrated, rapidly tunable, wideband optical delay line is used to implement an optoelectronic oscillator that can be continuously tuned from 594MHz to 634MHz. The oscillator exhibits a relatively flat modulation response at high frequencies (larger than 400MHz), accommodating wideband fast frequency chirp generation with applications in radar and imaging. The on-chip variable delay line is characterized by continuously delaying an ultra-wide band 0.5-5GHz monocycle pulse between 0-100ps. The photonic integrated chip consists of silicon nanowaveguides, phase modulators, multimode interference coupler, a Mach-Zehnder interferometer, and a photodiode. The chip is fabricated on IME 180nm Silicon Photonics platform and has an area of 0.55mm 2 .

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Section: In Loop Optical Phase Modulationmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

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Wideband Rapidly Tunable Delay-Controlled Optoelectronic Oscillator

Sanjari

Aflatouni

2020

IEEE Photonics J.

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“…Starting with an optical link plus a feedback loop, different configurations of OEO has been reported [6][7][8][9][10][11][12]. One of the disadvantages of the initial OEO design was the limitation of the electrical bandpass filter to remove unwanted frequencies' components from the output signal.…”

Section: Introductionmentioning

confidence: 99%

“…It is therefore, difficult to design a narrow band RF filter that can sustain single frequency operation. The OEO typically has frequencies of up to tens of giga-hertz and phase noise down to −140 dBc/Hz [8,9,[13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Optoelectronic oscillator with delay elements in optical and RF domain

Britto

Panasiewicz

Pacheco

2017

2017 Progress in Electromagnetics Research Symposium - Spring (PIERS)

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This study describes the generation of microwave signals by an optoelectronic oscillator, OEO. The delay of the OEO was made in the optical domain as well in the radio frequency (RF) domain. The constructed OEO was proposed for embedded applications, which requires low components volume, e.g., small size. Aimed at greater thermal stability and the application in embedded systems, a shorter acceptable optical fiber length was used as delay element. This enables to obtain an RF signal with the phase noise values according with the technical specifications. The total value of the OEO delay is completed with a delay in the RF domain. The benefits of this setup include the possibility of using inexpensive components and commercially available bandpass filter. Fiber optic section with length of 200 meters, coaxial cable and a filter with 15 MHz of bandwidth were used. The output characteristics of the OEO were a microwave signal at 2.022 GHz, an intensity of 10.5 dBm and a phase noise equal to −118.7 dBc/Hz for an offset of 100 KHz and −102.2 dBc/Hz for an offset of 10 KHz.

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Photonic radiofrequency receiver utilizing a phase modulator and a tunable single sideband optoelectronic oscillator

Xiao

Jin

Shen³

et al. 2019

Micro & Optical Tech Letters

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A photonic radiofrequency (RF) receiver utilizing a phase modulator (PM) and a tunable single sideband (SSB) optoelectronic oscillator (OEO) is proposed and experimentally demonstrated. In this scheme, the RF signal to be detected is modulated on the PM in one optical path, while a local oscillation (LO) signal is optically generated by the SSB OEO in the other optical path. After combining two paths of optical signals via an optical coupler, an immediate frequency (IF) signal is obtained by photonic RF downconversion in a photodetector (PD). Through scanning the LO signal and monitoring the IF signal simultaneously, the input unknown RF signal can be detected. In the experiment, the RF tones with the operating frequency from 8.1 to 12.1 GHz are successfully detected. The minimum detectable RF power at 10.1 GHz is −84.6 dBm, and the spurious free dynamic range of the photonic RF receiver measured is about 73.8 dB/Hz2/3.

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Low-Drift Optoelectronic Oscillator Based on a Phase Modulator in a Sagnac Loop

Cited by 34 publications

References 79 publications

Wideband Rapidly Tunable Delay-Controlled Optoelectronic Oscillator

Wideband Rapidly Tunable Delay-Controlled Optoelectronic Oscillator

Optoelectronic oscillator with delay elements in optical and RF domain

Photonic radiofrequency receiver utilizing a phase modulator and a tunable single sideband optoelectronic oscillator

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