Asymptotic formalism for ultraflat optical frequency comb generation using a Mach-Zehnder modulator

Sakamoto, Takahide; Kawanishi, Tetsuya; Izutsu, Masayuki

doi:10.1364/ol.32.001515

Cited by 354 publications

(126 citation statements)

References 6 publications

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“…1c). By carefully adjusting the drive parameters 3 , we achieve a spectral flatness of 7 lines within 2 dB. The line spacing amounts to 40 GHz.…”

Section: Silicon-organic Hybrid (Soh) Frequency Comb Generatormentioning

confidence: 95%

“…A particularly versatile and flexible approach to generate frequency combs is based on modulation of a continuous-wave (cw) laser with an appropriate arrangement of electro-optic phase shifters, each of which is driven with a periodic signal of distinct amplitude and phase 3 . This results in a precisely adjustable line spacing, tunable center wavelength, and narrow linewidth.…”

Section: Introductionmentioning

confidence: 99%

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Silicon-Organic Hybrid (SOH) Frequency Comb Source for Data Transmission at 784 Gbit/s

Weimann

Wolf

Korn

et al. 2013

39th European Conference and Exhibition on Optical Communication (ECOC 2013)

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“…1c). By carefully adjusting the drive parameters 3 , we achieve a spectral flatness of 7 lines within 2 dB. The line spacing amounts to 40 GHz.…”

Section: Silicon-organic Hybrid (Soh) Frequency Comb Generatormentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Silicon-Organic Hybrid (SOH) Frequency Comb Source for Data Transmission at 784 Gbit/s

Weimann

Wolf

Korn

et al. 2013

39th European Conference and Exhibition on Optical Communication (ECOC 2013)

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“…Instead of using a mode-locked laser that requires complicated stabilization schemes and often results in low-frequency spacing, a stable frequency comb source can be obtained by externally modulating a CW laser. A common approach is to inject a narrowlinewidth CW laser into an electro-optical phase/intensity modulator, which is then applied with a strong radiofrequency sinusoidal modulation signal for side-band generation [39,40]. The resulting frequency comb spacing is equal to the modulation (radio)frequency.…”

Section: Optical Millimeter-wave Sourcesmentioning

confidence: 99%

Millimeter-wave photonic wireless links for very high data rate communication

2011

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T he most useful wireless communication band is located in the frequency range of 0.3-3.5 GHz for reasons of compact antenna size, low propagation loss and good penetration through buildings [1]. However, wireless carrier frequencies are being pushed higher due to emerging high-bandwidth applications, which include next-generation smart cell phones [1] and wireless linking for three-dimensional super high-definition television [2]. As a result, the millimeter-wave (MMW) bands at 60 (V-band), 120 (D-band) and even higher than 300 GHz are beginning to attract attention due to their 'unlicensed' usage [2][3][4][5][6][7][8].Several key front-end components have been developed employing the already mature silicon-based complementary metal-oxide-semiconductor (CMOS) integrated-circuit (IC) technology for wireless communication in the V (50-75 GHz) and W (75-110 GHz) bands or even higher operating frequencies for wireless communication [9]. Recently, a 60 GHz CMOS transceiver module [10] and system comprised of antennas, 60 GHz power amplifiers, local oscillators and baseband ICs has been commercially developed by SiBEAM (USA). In addition, advanced InP-based high electron mobility transistors (InP-HEMTs) and heterojunction bipolar transistors have been used to develop some high-speed ICs and key components that operate at 125 GHz [11,12] or greater than 300 GHz [13,14] for >1 Gbit s -1 wireless communication systems.However, MMW signals suffer substantial propagation loss in free space [8]. This problem and their inherent straight-line path of propagation affect connections and synchronization between the different parts of the whole communication system [15]. A promising solution to overcome this problem is the radio-over-fiber (RoF) technique [3,4,16,17], in which the MMW local-oscillator signal and data are both distributed through a low-loss optical fiber and only radiated over the last mile to the end user. Figure 1 shows a schematic representation of this approach, illustrating the motivation and working principles of two MMW-over-fiber communication systems. Figure 1(a) shows the additional electrical-to-optical (E-O) and optical-to-electrical (O-E) conversion processes used in the central office and base station, respectively. The optical MMW signal is distributed remotely through a low-loss fiber from the central office to several base stations, effectively eliminating the huge propagation loss of the MMW signal that occurs in an electrical transmission line or free space.

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“…However, thermal and dimensional instabilities of a laser cavity cause the fluctuation of a repetition rate, which corresponds to the frequency. On the other hand, an optical modulation with a continuous-wave laser can provide a frequency-stabilized OFC signal because this stability is based on an electrical synthesizer, whose stability is high enough about several Hz in general, connected to the optical modulator [9]. The OFC signal bandwidth would have less than 1 THz due to the modulator driver issues.…”

Section: Introductionmentioning

confidence: 99%

Phase noise analysis of an optical frequency comb using single side-band suppressed carrier modulation in an amplified optical fiber loop

Kanno

Kawanishi

2012

IEICE Electron. Express

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Coherent optical two-tone generation using an optical frequency comb generator based on an amplified optical fiber loop is successfully demonstrated. The observed phase noises in the 100-GHz band are less than −80 dBc/Hz at 1 MHz. This method is suitable for high-speed radio communication based on advanced modulation techniques. Keywords: radio over fiber, optical frequency comb, phase noise Classification: Fiber optics, Microwave photonics, Optical interconnection, Photonic signal processing, Photonic integration and systems References[1] C. Jastrow, K. Munter, R. Piesiewicz, T. Kurner, M. Koch, and T. Kleine-Ostmann, "300 GHz Transmision System," Electron. Lett., vol. 44, pp. 213-214, 2008

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Asymptotic formalism for ultraflat optical frequency comb generation using a Mach-Zehnder modulator

Cited by 354 publications

References 6 publications

Silicon-Organic Hybrid (SOH) Frequency Comb Source for Data Transmission at 784 Gbit/s

Silicon-Organic Hybrid (SOH) Frequency Comb Source for Data Transmission at 784 Gbit/s

Millimeter-wave photonic wireless links for very high data rate communication

Phase noise analysis of an optical frequency comb using single side-band suppressed carrier modulation in an amplified optical fiber loop

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