Polarization-dependent chromatic dispersion in birefringent optical fibers

Okamoto, K.; Hosaka, T.

doi:10.1364/ol.12.000290

Cited by 25 publications

(9 citation statements)

References 7 publications

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“…By using the equation, we estimate the dispersion D for the spectra in Fig. 4 to be 0.033 ps/nm, which is reasonable value as the dispersion of the 2-m single-mode PM optical fiber [38].…”

Section: Dispersion Compensationmentioning

confidence: 60%

All-optical phase-sensitive detection for ultra-fast quantum computation

Takanashi,

Inoue,

Kashiwazaki

et al. 2020

Preprint

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Phase-sensitive detection is the essential projective measurement for measurement-based continuous-variable quantum information processing. The bandwidth of conventional electrical phase-sensitive detectors is up to several gigahertz, which would limit the speed of quantum computation. It is theoretically proposed to realize terahertz-order detection bandwidth by using all-optical phase-sensitive detection with an optical parametric amplifier (OPA). However, there have been experimental obstacles to achieve large parametric gain for continuous waves, which is required for use in quantum computation. Here, we adopt a fiber-coupled χ (2) OPA made of a periodically poled LiNbO 3 waveguide with high durability for intense continuouswave pump light. Thanks to that, we manage to detect quadrature amplitudes of broadband continuous-wave squeezed light. 3 dB of squeezing is measured up to 3 THz of sideband frequency with an optical spectrum analyzer. Furthermore, we demonstrate the phase-locking and dispersion compensation of the broadband continuous-wave squeezed light, so that the phase of the squeezed light is maintained over 1 THz. The ultra-broadband continuous-wave detection method and dispersion compensation would help to realize all-optical quantum computation with over-THz clock frequency.

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“…By using the equation, we estimate the dispersion D for the spectra in Fig. 4 to be 0.033 ps/nm, which is reasonable value as the dispersion of the 2-m single-mode PM optical fiber [38].…”

Section: Dispersion Compensationmentioning

confidence: 60%

All-optical phase-sensitive detection for ultra-fast quantum computation

Takanashi,

Inoue,

Kashiwazaki

et al. 2020

Preprint

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show abstract

“…Additionally, controlling the state of polarization in the NIR region is also very important in fiber telecommunication where at wavelengths 1330 nm and 1550 nm the optical pulse has zero group velocity dispersion and the optical pulse can propagate without any distortion [44,45].…”

Section: Discussionmentioning

confidence: 99%

Wide spectral range multiple orders and half-wave achromatic phase retarders fabricated from two lithium tantalite single crystal plates

Emam-Ismail

2015

Optics & Laser Technology

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“…[ 122 ] Optical anisotropy is generally caused by the birefringent nature of some crystalline substances such as calcite, as well as internal residual stress in a stretched polymeric film that leads to a specific orientation of molecule chains, resulting in birefringence. [ 123 ] Xie and co‐workers reported a programmable invisible pattern using an amorphous shape memory polymer network dynamically crosslinked by Diels–Alder moieties. [ 124 ] The polymer showed mechanical colors under linear polarization (chromatic polarization) when being stretched at 60 °C, and the reflection shifted continuously with the uniaxial stretching, while complete stress relaxation led to the disappearance of the color.…”

Section: Strategies For Anticounterfeiting Via Structural Colorsmentioning

confidence: 99%

Structural Color Materials for Optical Anticounterfeiting

Hong

Yuan

Chen

2020

Small

307

251

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The counterfeiting of goods is growing worldwide, affecting practically any marketable item ranging from consumer goods to human health. Anticounterfeiting is essential for authentication, currency, and security. Anticounterfeiting tags based on structural color materials have enjoyed worldwide and long‐term commercial success due to their inexpensive production and exceptional ease of percept. However, conventional anticounterfeiting tags of holographic gratings can be readily copied or imitated. Much progress has been made recently to overcome this limitation by employing sufficient complexity and stimuli‐responsive ability into the structural color materials. Moreover, traditional processing methods of structural color tags are mainly based on photolithography and nanoimprinting, while new processing methods such as the inkless printing and additive manufacturing have been developed, enabling massive scale up fabrication of novel structural color security engineering. This review presents recent breakthroughs in structural color materials, and their applications in optical encryption and anticounterfeiting are discussed in detail. Special attention is given to the unique structures for optical anticounterfeiting techniques and their optical aspects for encryption. Finally, emerging research directions and current challenges in optical encryption technologies using structural color materials is presented.

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Polarization-dependent chromatic dispersion in birefringent optical fibers

Cited by 25 publications

References 7 publications

All-optical phase-sensitive detection for ultra-fast quantum computation

All-optical phase-sensitive detection for ultra-fast quantum computation

Wide spectral range multiple orders and half-wave achromatic phase retarders fabricated from two lithium tantalite single crystal plates

Structural Color Materials for Optical Anticounterfeiting

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