Polyamic alkyl ester system promising for side-chain electro-optic polymer

Park, Seung Koo; Yun, Jung; Ju, Jung Jin; Park, Suntak; Kim, Minsu; Lee, Myung‐Hyun

doi:10.1016/j.reactfunctpolym.2006.01.006

Reactive and Functional Polymers

2006

DOI: 10.1016/j.reactfunctpolym.2006.01.006

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Polyamic alkyl ester system promising for side-chain electro-optic polymer

Seung Koo Park

Jung Yun

Jung Jin Ju

et al.

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Cited by 9 publications

(1 citation statement)

References 39 publications

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“…In particular, the reasonable selection of electro-optic materials is one of the efficient ways to improve the performance of electro-optic switches. Compared with inorganic electrooptic materials, polymer electro-optic materials have some excellent features including high electro-optic coefficient, short switching time, high switching speed, low switching voltage, low transmission loss, easy control of refractive index and simple technical processing [4,5] . In the last decade, microring resonators (MRRs) have received considerable attention and have become novel devices in optical communication systems, because of their excellent performances, such as compact structure, easy integration,low insertion loss and small crosstalk.…”

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confidence: 99%

Optimum design of a polymer electro-optic microring resonator switch

Yan

Wang

et al. 2007

Optoelectron. Lett.

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Novel transfer functions are presented for a polymer electro-optic microring resonator switches. The resonating process of the light in the microring is simulated using the formulas. Then the optimization of the structural parameters is performed, and the characteristics are analyzed, such as the resonance time, output spectrum, operation voltage, insertion loss and crosstalk were analyzed. The simulation results show that the designed device exhibits favorable switching functions.With the rapid development of ultra-high-speed optical information processing technologies, electro-optic switches [1][2][3] have wide applications and have become important components in optical communication systems because of their shorter switching time and higher switching speed compared with other optical switches. Continuous improvement of electro-optic switches plays a crucial role in the transmission performance of optical communication systems. In particular, the reasonable selection of electro-optic materials is one of the efficient ways to improve the performance of electro-optic switches. Compared with inorganic electrooptic materials, polymer electro-optic materials have some excellent features including high electro-optic coefficient, short switching time, high switching speed, low switching voltage, low transmission loss, easy control of refractive index and simple technical processing [4,5] . In the last decade, microring resonators (MRRs) have received considerable attention and have become novel devices in optical communication systems, because of their excellent performances, such as compact structure, easy integration,low insertion loss and small crosstalk. This kind of devices not only have some basic functions including filtering, multiplexing, demultiplexing and routing, but also potential applications in wavelength converting, modulating, switching and lasing. Using the resonant characteristics of microring and electro-optic properties of materials, one can design and fabricate electro-optic MRR switches with small size, low switching voltage and high response speed [6] .In this letter, by using the coupled mode theory, microring resonance theory and electro-optic modulation theory, a reasonable project is proposed for designing an electro-optic MRR switch based on the polymer materials. First the novel transfer functions are presented for simulating the polymer electro-optic MRR switch. Then the parameters are optimized, which include the size of the waveguide core, the thickness of the metal electrode and of the confined layer between the core and the electrode, and the coupling gap between the microring and the channel. Furthermore the transmission characteristics are analyzed, including the resonance time, the output spectrum, the operation voltage, the insertion loss and the crosstalk. Finally, a conclusion is reached based on the analysis and discussions. Fig.1 shows the structural diagram and the cross-section of a polymer electro-optic MRR switch, which consists of two channels (main channel and drop cha...

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confidence: 99%

Optimum design of a polymer electro-optic microring resonator switch

Yan

Wang

et al. 2007

Optoelectron. Lett.

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Influence of azobenzene units on imidization kinetic of novel poly(ester amic acid)s and polymers properties before and after cyclodehydration

Schab‐Balcerzak

Janeczek

Kucharski

2010

J of Applied Polymer Sci

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In this article, the imidization reaction kinetic of novel poly(ester amic acid)s with azobenzene units as side groups was studied by dynamic experiments by means of differential scanning calorimetry. Polymers differ in the number of chromophore moieties in their repeating unit and position in which azobenzene group is attached to the polymer chain. The kinetic parameters of poly(ester amic acid)s conversion to poly(ester imide)s was compared with data calculated for parent polymer, that is, without azobenzene groups. For the first time to our knowledge, the imidization kinetic of polymers with side azobenzene groups was studied. Kinetic parameters, such as the activation energy and frequency factor were estimated with the by Ozawa model [ (E(O) and A(O)), respectively] and Kissinger model [(E(K) and A(K), respectively].The values of activation energy determined with both models were in the range 167.1-198.3 kJ/mol. The lowest activation energy of imidization reaction exhibited polymer in which azobenzene units were placed between amide linkages. Polymers were characterized by FTIR, 1 H-NMR, X-ray, and UV-vis methods. The glass transition temperature of resultant poly(ester imide)s was in the range of 217-237 C. The presence of chromophore units slightly decreased T g and significantly improved their solubility and optical properties.

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Analysis of characteristics of a parallel channel microring resonator electro-optic switch array

Wang

Zhang

et al. 2018

Optik

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Polyamic alkyl ester system promising for side-chain electro-optic polymer

Cited by 9 publications

References 39 publications

Optimum design of a polymer electro-optic microring resonator switch

Optimum design of a polymer electro-optic microring resonator switch

Influence of azobenzene units on imidization kinetic of novel poly(ester amic acid)s and polymers properties before and after cyclodehydration

Analysis of characteristics of a parallel channel microring resonator electro-optic switch array

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