True Time Delay Photonic Circuit Based on Perfluorpolymer Waveguides

Yeniay, A.; Gao, Renfeng

doi:10.1109/lpt.2010.2069558

Cited by 18 publications

(11 citation statements)

References 6 publications

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“…It is well known that the absorption loss of the high molecular material mainly comes from vibration overtones of the carbon-hydrogen (C−H) bond, while fluorinated polymers with the C-H bond replaced by C-F bonds are capable of drastically reducing the optical loss [23,24]. Furthermore, fluorinated photopolymer materials have several advantages, such as low surface energy and moisture absorption, good thermal and chemical stability, which make them more competitive in fields of optical applications [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Thermo-optic waveguide gate switch arrays based on direct UV-written highly fluorinated low-loss photopolymer

Niu

Zheng

et al. 2014

Appl. Opt.

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Novel thermo-optic waveguide gate switch arrays were designed and fabricated based on the direct UV-written technique. Highly fluorinated low-loss photopolymers and organic-inorganic grafting materials were used as the waveguide core and cladding, respectively. The low absorption loss characteristics and excellent thermal stabilities of the core and cladding materials were obtained. The rectangular waveguides and arrayed electrode heaters have been theoretically designed and numerically simulated to realize single-mode transmission. The propagation loss of a 4-μm-wide straight waveguide was measured as 0.15 dB/cm. The insertion loss of the device was directly measured to be about 5.5 dB. The rise and fall times of the device applied 100 Hz square-wave voltage were obtained as 1.068 and 1.245 ms, respectively. The switching power was about 9.2 mW, and the extinction ratio was 17.8 dB. The low-loss integrated switch arrays are suitable for realizing large-scale photonic integrated circuits.

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Section: Introductionmentioning

confidence: 99%

Thermo-optic waveguide gate switch arrays based on direct UV-written highly fluorinated low-loss photopolymer

Niu

Zheng

et al. 2014

Appl. Opt.

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“…It can be reduced by replacing C-H bonds of the materials with C-F bonds, so-called fluorination, because the C-F overtone shows ultra-low absorption at 1550 nm wavelength. 20,34 In addition, un-optimized poling parameters may also lead to extra propagation loss. By using a polarization controller, the polarization of the incident light can be changed to any direction.…”

Section: Resultsmentioning

confidence: 99%

Low half-wave voltage Y-branch electro-optic polymer modulator based on side-chain polyurethane-imide

Tang

Wang

et al. 2016

Mod. Phys. Lett. B

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A Y-branch electro-optic (EO) polymer modulator has been designed and fabricated. High performance side-chain polyurethane-imide (PUI) with a high EO coefficient of larger than 50 pm/V and a moderate glass-transition temperature (Tg) of 206 • C is used as EO polymer core layer of the modulator. The fabricated phase modulator exhibits a low half-wave voltage of 1.94 V at 1550 nm in single arm modulation with 1 cm EO interaction length and 2 cm total length. The results show that the modulator fabricated by side-chain PUI EO materials possesses potential applications in low driving voltage and low cost optical systems.

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“…Instead, compromises have to be made to reach good balances. Table 1 compares the performances of various stateof-the-art integrated ODLs, including SCISSORs [47] , CROWs [37] , gratings [80] , PhCWs [91] , RTTDLs [107] , continuously tunable RTTDLs [110] , wavelength-selective delay lines [117] , recirculating loop delay lines [113] , and MEMSactuated delay lines [121] . It should be noted that we only compare the tunable delay lines, although there are bunch of passive delay lines reported in the literature.…”

Section: Comparison and Discussionmentioning

confidence: 99%

“…The wavelengthselective true-time delay has been applied to a PAA, where the optical true-time delay was used in low-loss independent control of two-dimensional (2D) array transmitters, providing wide instantaneous bandwidth [116] . Yeniay and Gao also demonstrated a wavelength-selective time delay based on an athermal AWG on a perfluoropolymer integrated photonics platform [117] . A delay tuning range of 600 ps was obtained by changing the wavelength over 12 nm.…”

Section: E Wavelength-selective Delay Linesmentioning

confidence: 99%

Integrated optical delay lines: a review and perspective [Invited]

Zhou

Wang

et al. 2018

Chin. Opt. Lett.

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Optical delay lines (ODLs) are one of the key enabling components in photonic integrated circuits and systems. They are widely used in time-division multiplexing, optical signal synchronization and buffering, microwave signal processing, beam forming and steering, etc. The development of integrated photonics pushes forward the miniaturization of ODLs, offering improved performances in terms of stability, tuning speed, and power consumption. The integrated ODLs can be implemented using various structures, such as single or coupled resonators, gratings, photonic crystals, multi-path switchable structures, and recirculating loop structures. The delay tuning in ODLs is enabled by either changing the group refractive index of the waveguide or changing the length of the optical path. This paper reviews the recent development of integrated ODLs with a focus on their abundant applications and flexible implementations. The challenges and potentials of each type of ODLs are pointed out.

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True Time Delay Photonic Circuit Based on Perfluorpolymer Waveguides

Cited by 18 publications

References 6 publications

Thermo-optic waveguide gate switch arrays based on direct UV-written highly fluorinated low-loss photopolymer

Thermo-optic waveguide gate switch arrays based on direct UV-written highly fluorinated low-loss photopolymer

Low half-wave voltage Y-branch electro-optic polymer modulator based on side-chain polyurethane-imide

Integrated optical delay lines: a review and perspective [Invited]

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