Second-harmonic generation of an optical frequency comb at 155 ?m with periodically poled lithium niobate

Widiyatmoko, Bambang; Imai, K.; Kourogi, M.; Ohtsu, Motoichi

doi:10.1364/ol.24.000315

Cited by 10 publications

(4 citation statements)

References 10 publications

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“…Originating from the F-P modulator, the optical frequency comb generator (OFCG) [4] has emerged as a valuable tool for applications in metrology, e.g., optical frequency measurements and terahertz (THz) signal synthesis and wavelength references for WDM communication systems. A major effort in previous work was to achieve combs with a wide frequency span [4][5][6][7][8][9]. In this regard, a waveguide OFCG [7,10] turns out to be a practical device with advantages of compactness for integration and small V π for large modulation index.…”

Section: Introductionmentioning

confidence: 99%

Toward a low-jitter 10 GHz pulsed source with an optical frequency comb generator

Xiao¹,

Hollberg²,

Newbury³

et al. 2008

Opt. Express

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We demonstrate low residual timing jitter of 10 GHz pulses from a 1.55 ?m optical frequency comb generator based on a doubly-resonant electro-optic modulator. The comb spectral phase is shown to be linear but of different slopes for the two sides of the optical spectrum. The linear phase delay predicts well the measured timing delay of the two pulse trains from the comb generator. The pulse timing jitter is analyzed, and we illustrate that the pump laser's linewidth plays a dominant role in the timing jitter. For Fourier frequencies from 1 Hz to 10 MHz, integrated residual timing jitter at 10 GHz was reduced from approximately 94 fs to approximately 8 fs when the pump laser's linewidth was reduced from approximately 10 MHz to approximately 1 kHz. An electronic servo was then used to stabilize the Fabry-Pérot cavity in the comb generator. Integrated residual timing jitter was further reduced to approximately 6 fs, and the corresponding residual phase noise power density is -105 dBc/Hz at 1 Hz frequency offset from the 10 GHz pulse carrier.

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Section: Introductionmentioning

confidence: 99%

Toward a low-jitter 10 GHz pulsed source with an optical frequency comb generator

Xiao¹,

Hollberg²,

Newbury³

et al. 2008

Opt. Express

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“…An elegant extension of the phase modulated CW scheme to generate an ultra broadband comb (Terahertz and more) has been proposed and demonstrated a number of years ago [53,[59][60][61][62][63][64][65][66]. This device, called an optical frequency comb generator (OFCG), is an electro-optic (LiNbO 3 ) modulator inside a Fabry-Perot cavity (the cavity can also be formed by coating high reflectors on the facets of the LiNbO 3 crystal/waveguide), schematically shown in Fig.…”

Section: Optical Frequency Comb Generator (Ofcg)mentioning

confidence: 99%

Spectral line‐by‐line shaping for optical and microwave arbitrary waveform generations

Huang

Jiang

Leaird

et al. 2008

Laser & Photonics Reviews

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Spectral line-by-line shaping is a key enabler towards optical arbitrary waveform generation, which promises broad impact both in optical science and technology. In this paper, generation of optical and microwave arbitrary waveforms using the spectral line-by-line shaping technique is reviewed. Compared to conventional pulse shaping, significant new physics arises in the line-by-line regime, where the shaped pulse fields generated from one laser pulse now overlap with those generated from adjacent pulses. This leads to coherent interference effects related to the properties of optical frequency combs which serve as the source in these experiments. We explore such effects in a series of experiments using several different high-repetitionrate optical combs, including harmonically mode-locked lasers and continuous-wave lasers that are externally phase modulated either with or without the help of an optical cavity. As an application of line-by-line pulse shaping, we describe generation of microwave electrical arbitrary waveforms that can be reprogrammed at rates approaching 10 GHz.Significance of line-by-line shaping: combining optical frequency combs with spectral pulse shaping

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“…Recently, however, a tunable laser has been used for the creation of entangled photon pairs and second harmonic generation using a periodically poled lithium niobate ͑PPLN͒ waveguide in the study of quantum optics and nonlinear optics. [10][11][12][13] In the experiment, a laser beam is first coupled into a waveguide of several micrometers. Then, phase matching is obtained by tuning the wavelength to that decided by the period of domain inversion.…”

Section: Littrow-type External-cavity Diode Laser With a Triangular Pmentioning

confidence: 99%

Littrow-type external-cavity diode laser with a triangular prism for suppression of the lateral shift of output beam

Takamizawa

Yonezawa

Kosaka

et al. 2006

Review of Scientific Instruments

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We demonstrate a Littrow-type external-cavity diode laser with an additional triangular prism united to a diffraction grating. In this configuration, while the laser wavelength can be tuned by rotating the grating that constitutes an external cavity, the prism outside the cavity compensates for the lateral shift of the output beam. It is estimated that the lateral shift of the output beam is only 2μm over the tuning range of 12.91nm. In fact, the output beam was coupled into a single-mode fiber with constant efficiency over the wavelength range without any adjustment of the coupling optics.

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Second-harmonic generation of an optical frequency comb at 155 ?m with periodically poled lithium niobate

Cited by 10 publications

References 10 publications

Toward a low-jitter 10 GHz pulsed source with an optical frequency comb generator

Toward a low-jitter 10 GHz pulsed source with an optical frequency comb generator

Spectral line‐by‐line shaping for optical and microwave arbitrary waveform generations

Littrow-type external-cavity diode laser with a triangular prism for suppression of the lateral shift of output beam

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