Octave-spanning frequency comb generated by 250 fs pulse train emitted from 25 GHz externally phase-modulated laser diode for carrier-envelope-offset-locking

Ishizawa, Atsushi; Nishikawa, Tadashi; Mizutori, Akira; Takara, H.; Aozasa, Shinichi; Mori, Akira; Nakano, H.; Takada, Atsushi; Koga, Masafumi

doi:10.1049/el.2010.2228

Cited by 26 publications

(13 citation statements)

References 4 publications

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“…This solution combines robustness and simplicity at a few nm bandwidth (considering ~ 10 GHz oscillator and state-of-the-art opto-electronic and microwave components). Electro-optic comb generators may be categorized in resonant [16,17] or single-pass [15,[18][19][20][21][22][23][24][25][26][27][28]. The former set consists of a single electro-optic modulator (usually phase) placed in a cavity, so that multiple sidebands are generated by resonant interaction.…”

mentioning

confidence: 99%

High-Power Broadly Tunable Electrooptic Frequency Comb Generator

Metcalf

Torres-Company

Leaird

et al. 2013

IEEE J. Select. Topics Quantum Electron.

187

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Broadband travelling-wave electro-optic modulators made of lithium niobate have reached a high level of technological maturity. They can provide simultaneously low Vπ, sustain high power (both optical and RF) and yet provide low propagation loss. By combining together these features, we present a high-power handling, broadly tunable, electro-optic frequency comb generator. The device produces between 60-75 lines within-10 dB bandwidth over its full tuning range-from 6-18 GHz-and can handle up to 1W of optical input power. This optical frequency comb platform is very well suited for applications in RF photonics and optical communications that require independent RF and optical tuning as well as highrepetition rates but moderate bandwidth.

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mentioning

confidence: 99%

High-Power Broadly Tunable Electrooptic Frequency Comb Generator

Metcalf

Torres-Company

Leaird

et al. 2013

IEEE J. Select. Topics Quantum Electron.

187

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“…In order to achieve high a FoM using low power CW seeds, a high peak power waveform must be synthesized. Authors in [148], [149] proposed multi frequency seeds by modulating a single CW laser with electro-optic modulator, driven by an electrical tone, shown in the Fig. 17 (a).…”

Section: A Electro-optic Optical Frequency Comb Generatorsmentioning

confidence: 99%

“…Authors in [68], [147] proposed a regeneration stage based on the NOLM to suppress the sidelobes. In the experiments, the output of the NOLM-based regeneration stage provided near-ideal seed properties for the Figure 17: Parametric combs (a) Parametric comb with multi-frequency seed [148], [149] (b) CW seeded chirp-compress-mix cycle [145] (c) CW-seeded Shock-Wave Mixer Principle: (left) phase modulator (PM) generates chirp to induce shock-wave (compression) and increase peak power prior to the parametric comb generation in HNLF; imperfect pulse compression leads to pulse sidelobes, resulting in comb spectral ripple; (right) NOLM transfer function is used to regenerate compressed waveform and seed mixing stage (HNLF) with near-ideal seeds, eliminating comb ripple. [147] (d) Comb based on cascaded FWM [150] (e) Integrated parametric comb using FWM in an on-chip nano-waveguide [151].…”

Section: A Electro-optic Optical Frequency Comb Generatorsmentioning

confidence: 99%

A Survey of Optical Carrier Generation Techniques for Terabit Capacity Elastic Optical Networks

Imran

Anandarajah

Kaszubowska-Anandarajah

et al. 2018

IEEE Commun. Surv. Tutorials

107

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Abstract-Elastic optical networks (EON) have been proposed to meet the network capacity and dynamicity challenges. Hardware and software resource optimization and re-configurability are key enablers for EONs. Recently, innovative multi-carrier transmission techniques have been extensively investigated to realize high capacity (Tb/s) flexible transceivers. In addition to standard telecommunication lasers, optical carrier generators based on optical frequency combs (OFC) have also been considered with expectations of reduced cost and inventory, improved spectral efficiency and flexibility. A wide range of OFC generation techniques have been proposed in the literature over the past few years. It is imperative to summarize the state of the art, compare and assess these diverse techniques from a practical perspective. In this survey, we identify salient features of optical multicarrier generators, review and compare these techniques both from a physical and network layer perspective. OFC demultiplexing/filtering techniques have also been reviewed. In addition to transmission performance, the impact of such sources on the network performance and real-world deployment strategies with reference to cost, power consumption, and level of flexibility have also been discussed. Field trials, integrated solutions, flexibility demonstrations are also reported. Finally, open issues and possible future directions that can lead to real network deployment are highlighted.

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“…The aforementioned EO combs represent an excellent choice for exploring the possibilities of frequency combs as sources in WDM systems. The time-domain waveform emerging from an EO comb can be compressed to generate picosecond pulses [10], which can be used as the seed to generate additional bandwidth via nonlinear effects in an external waveguide (see, e.g., [21,22]). By carefully shaping the pulses and the dispersion in the nonlinear medium, combs spanning the C + L light wave communication bands with high OSNR can be obtained [23].…”

Section: Technologies For Optical Frequency Comb Generationmentioning

confidence: 99%

Frequency Comb-Based WDM Transmission Systems Enabling Joint Signal Processing

et al. 2018

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We review the use of optical frequency combs in wavelength-division multiplexed (WDM) fiber optic communication systems. In particular, we focus on the unique possibilities that are opened up by the stability of the comb-line spacing and the phase coherence between the lines. We give an overview of different techniques for the generation of optical frequency combs and review their use in WDM systems. We discuss the benefits of the stable line spacing of frequency combs for creating densely-packed optical superchannels with high spectral efficiency. Additionally, we discuss practical considerations when implementing frequency-comb-based transmitters. Furthermore, we describe several techniques for comb-based superchannel receivers that enables the phase coherence between the lines to be used to simplify or increase the performance of the digital carrier recovery. The first set of receiver techniques is based on comb-regeneration from optical pilot tones, enabling low-overhead self-homodyne detection. The second set of techniques takes advantage of the phase coherence by sharing phase information between the channels through joint digital signal processing (DSP) schemes. This enables a lower DSP complexity or a higher phase-noise tolerance.

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Octave-spanning frequency comb generated by 250 fs pulse train emitted from 25 GHz externally phase-modulated laser diode for carrier-envelope-offset-locking

Cited by 26 publications

References 4 publications

High-Power Broadly Tunable Electrooptic Frequency Comb Generator

High-Power Broadly Tunable Electrooptic Frequency Comb Generator

A Survey of Optical Carrier Generation Techniques for Terabit Capacity Elastic Optical Networks

Frequency Comb-Based WDM Transmission Systems Enabling Joint Signal Processing

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