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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Optical Society of Korea
Journal Basic Information
Journal DOI :
Optical Society of Korea
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Volume & Issues
Volume 7, Issue 4 - Dec 2003
Volume 7, Issue 3 - Sep 2003
Volume 7, Issue 2 - Jun 2003
Volume 7, Issue 1 - Mar 2003
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Optical Interconnection and Clocking Using Planar-Integrated Free-Space Optics
Jahns, Jurgen ; Gruber, Matthias ; Lunitz, Barbara ; Stolzle, Markus ;
Journal of the Optical Society of Korea, volume 7, issue 1, 2003, Pages 1~6
DOI : 10.3807/JOSK.2003.7.1.001
Integration and miniaturization at the systems level are key requirements for photonics applications. Here, we describe the concept of planar integration of free-space optical systems and its use as an optical interconnection technology. Two specific applications will be considered, a parallel chip-to-chip interconnect and an optical clock distribution network.
Band Structure Analysis of Strained Quantum Wire Arrays
Yi, Jong-Chang ; Ji, Jeong-Beom ;
Journal of the Optical Society of Korea, volume 7, issue 1, 2003, Pages 7~12
DOI : 10.3807/JOSK.2003.7.1.007
A numerical approach for the analysis of quantum wire structures has been presented using a finite-element method which includes the strain analysis and the band analysis of the Luttinger-Kohn Hamiltonian with the deformation potential. A systematic implementation of the multiband Hamiltonian in the finite-element scheme is outlined and the corresponding variational functional is derived for arbitrarily shaped strained quantum wire arrays. This method is then applied to calculate the band structures of strained quantum wire arrays.
Stress Profile Dependence of the Optical Properties in Strained Quantum Wire Arrays
Yi, Jong-Chang ; Ji, Jeong-Beom ;
Journal of the Optical Society of Korea, volume 7, issue 1, 2003, Pages 13~19
DOI : 10.3807/JOSK.2003.7.1.013
The effects of strain distribution in quantum wire arrays have been analyzed using a finite-element method including both the hydrostatic and shear strain components. Their effects on the optical properties of the quantum wire arrays are assessed for various types of stress profiles by calculating the optical gain and the polarization dependence. The results show unique polarization dependency, which can be exploited either for the single polarization or the polarization-independent operation in quantum wire photonic devices.
The Analysis of tight Coupling and Propagation for a Composite Fiber-Dielectric Slab with a Conductor Cladding
Kwon, Kwang-Hee ; Song, Jae-Won ; Kim, Jeong-Hoon ; Park, Euy-Don ; Son, Seok-Woo ;
Journal of the Optical Society of Korea, volume 7, issue 1, 2003, Pages 20~27
DOI : 10.3807/JOSK.2003.7.1.020
A theoretical presentation of evanescent coupling is offered with respect to the refractive indexes between a side-polished optical fiber and an infinitely planar waveguide with a conductor cladding (PWGCC). The PWG is suspended at a constant distance from an unclad fiber core and attached with the perfect conductor (PEC) on one side. The behavior of the distributed couple. is examined using a coupled mode model, which takes account of the two dimensions of the waveguide configuration. The coupling and propagation of light were found to depend on both the relationship between the refractive index values of each structure and the configuration of the side-polished fiber used in the PWGCC. The spreading of light in the unconfined direction of the PWGCC is described in terms of a simple geometrical interpretation of the synchronization condition that is in agreement with a previous investigation of the problem based on the coupled-mode theory (CMT). The power of the light propagation in the fiber decreased exponentially along the fiber axis as it was transferred to the PWGCC, where it was carried away.
Re-Configurable tow-toss OADM Module Using 2×2 Port Optical Device
Kim, Myoung-Jin ; Lee, Seung-Gol ;
Journal of the Optical Society of Korea, volume 7, issue 1, 2003, Pages 28~33
DOI : 10.3807/JOSK.2003.7.1.028
We describe the optimal design and the fabrication of a 2
2 port optical device based on the thin film filter (TFF), and also propose a 4-channel OADM module using these devices. The optical performance of the proposed OADM module is evaluated theoretically and experimentally, and is compared to that of typical OADM modules using 1
2 port optical devices for 4, 8, 16 and 32 drop channels in optical transmission systems. Since the 2
2 port optical device accomplishes the function of wavelength multiplexing and demultiplexing simultaneously in the proposed OADM module, the insertion loss of through channels can be improved by 1.2 dB compare to that of typical OADM modules using 1
2 port optical devices. In addition, both the size and the price of the module can be reduced to 40~50%.
Uncoupling Spectral Region in Two-Dimensional Square Lattice Photonic Crystals
Kang, Dong-Yel ; Park, Hong-Gyu ; Ryu, Han-Youl ; Lee, Yong-Hee ;
Journal of the Optical Society of Korea, volume 7, issue 1, 2003, Pages 34~37
DOI : 10.3807/JOSK.2003.7.1.034
Outside the photonic bandgap of two-dimensional square lattice photonic crystals, we found spectral regions in which light coupling from the air is forbidden. This uncoupling spectral region originates from the anisotropy of the photonic crystals. A two-dimensional square photonic crystal has a complete total bandgap (forbidden region in both TE and TM modes) with hole radius ranging from 0.15 to 0.45 times a lattice constant.
Highly-Dispersive Guided Modes of Two-Dimensional Photonic Crystal Waveguides
Kim, Guk-Hyun ; Lee, Yong-Hee ;
Journal of the Optical Society of Korea, volume 7, issue 1, 2003, Pages 38~41
DOI : 10.3807/JOSK.2003.7.1.038
We present an analysis of highly-dispersive guided modes of two-dimensional photonic crystal waveguides. By the plane ave expansion method, band structures and mode profiles of two-dimensional photonic crystal waveguides are obtained. It is found that guided modes have very small group velocities and very large group velocity dispersions in the region near the f-point and in the region near the Brillouin zone edge. Especially, the group velocity dispersions are found to be millions of times larger than that of a conventional optical fiber. The contributions of the transverse resonance formed by two photonic band gap reflectors and the standing wave mode formed by periodic structures are discussed. We conclude that the highly-dispersive characteristics originate from the resonator-like aspect of the photonic crystal waveguide.