Athermalized Polymeric Arrayed-Waveguide Grating by Partial Detachment from a Si Substrate

Lee, Jong-Moo; Ahn, Jaewook; Park, Suntak; Lee, Myung‐Hyun

doi:10.4218/etrij.04.0203.0027

Cited by 11 publications

(3 citation statements)

References 10 publications

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“…Our approach in the final step is coating the upper cladding at several times by adjusting the thicknesses per each coating step. [11] The experiment was performed to improve the temperature dependence of a 16 x 16 channel AWG. We used the same materials, used for polarization independent AWG.…”

Section: Polarization Independent Polymeric Awgmentioning

confidence: 99%

Polymeric waveguide devices for optical communications

Lee

Park

et al. 2004

SPIE Proceedings

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ABSRACTRecently, we developed a wavelength converter, a 16-arrayed electro-optic (EO) Mach-Zehnder (MZ) modulator, polarization adjustable and athermal arrayed waveguide gratings (AWGs), and a wavelength channel selector by using all polymers. We designed and fabricated periodically poled nonlinear optical (NLO) polymer waveguides for the wavelength converter. Difference-frequency generation (DFG) process with a quasi-phase-matching (QPM) scheme was used. An all polymer-based wavelength channel selector composed of 16-channel EO polymer modulator array between two polymer AWGs is proposed and fabricated using chip-to-chip bonding of the three optical polymeric waveguide devices. For this, the 16-arrayed polymeric optical modulator and AWGs are respectively fabricated using EO and lowloss optical polymers. For these two-typed devices, we have synthesized new side chain NLO polymers and used lowloss optical polymers, designed and developed by ZenPhotonics, Inc. The developed these photonic devices were discussed in details from materials to packaging.

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Section: Polarization Independent Polymeric Awgmentioning

confidence: 99%

Polymeric waveguide devices for optical communications

Lee

Park

et al. 2004

SPIE Proceedings

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“…There have been many efforts to reduce the thermal expansion based stresses to give low temperature dependence operation for designed devices. For example authors of [6] propose a new fabrication method for adjusting the temperature dependence of a polymeric arrayed waveguide grating (AWG) on a Si substrate. A temperature dependent wavelength shift was reduced by detaching a part of the polymer film, including the grating channel region of the AWG from the Si substrate while other parts remain fixed on the substrate.…”

Section: Introductionmentioning

confidence: 99%

Low-loss and low-polarization-dependent fiber variable optical attenuators

et al. 2004

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We present the optical performance of a compact variable optical attenuator (VOA) developed at Photintech. The presented VOA's operation principle is based on the guided wave evanescent field manipulation. Access to the evanescent portion of the guided radiation is achieved by replacing the original waveguide's cladding with a thermooptic composite polymer (TOP) material. By changing the temperature of the thermo-optic (TO) material we create guided radiation partial leakage attenuating thus the light. Nevertheless, using polymer materials usually creates significant birefringence due to shrinkage during polymerization or thermal stresses during operation and the polarization dependence of such devices is relatively high. We apply a specific cladding geometry and heating electrode (pending patent of Photintech Inc.), which ensures axial compensation of the birefringence, providing thus very small polarization dependence. In-fiber design provides also low insertion loss (IL) and high dynamic range operation. Control electronics allow the VOA to operate with a precision better than 0.1dB. The developed VOA can be used in agile optical networks, for applications such as dynamic gain equalisation, dynamic channel equalisation, optical transmitter power control and receivers protection in telecommunication systems.

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“…In order to eliminate the undesirable temperature dependence, the athermalization of the AWG has been explored. [5][6][7][8][9][10][11] This enables the AWG to be unaffected by the variation of environment temperature.…”

Section: Introductionmentioning

confidence: 99%

Design and Optimization of an Athermal Asymmetric All-Polymer Arrayed Waveguide Grating

Wang

et al. 2008

Mod. Phys. Lett. B

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This study demonstrates a novel athermal asymmetric arrayed waveguide grating (AWG), which is composed of polymer waveguides on a polymer substrate. The temperature-dependent wavelength shift of the AWG depends on the refractive indices of the polymer materials and the coefficient of thermal expansion (CTE) of the polymer substrate. The athermalization of the AWG can be realized by the selection of the polymer materials and the structural parameters of the waveguide and the substrate.

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Athermalized Polymeric Arrayed-Waveguide Grating by Partial Detachment from a Si Substrate

Cited by 11 publications

References 10 publications

Polymeric waveguide devices for optical communications

Polymeric waveguide devices for optical communications

Low-loss and low-polarization-dependent fiber variable optical attenuators

Design and Optimization of an Athermal Asymmetric All-Polymer Arrayed Waveguide Grating

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