A novel compact wavelength-division multiplexer using highly dispersive waveguide-to-waveguide coupling

Tzong Yow Tsai; Zhi Cheng Lee; Yen Cheng Fang; Ming Hong Cha

doi:10.1016/j.optcom.2006.01.035

A novel compact wavelength-division multiplexer using highly dispersive waveguide-to-waveguide coupling

Tzong Yow Tsai, Zhi Cheng Lee, Yen Cheng Fang, Ming Hong Cha

Institute of Microelectronics

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

A novel compact wavelength-division multiplexer using highly dispersive waveguide-to-waveguide coupling is designed, simulated and analyzed. The device consists of two very close single-moded waveguides that are periodically connected to form a mode-dependent dispersive grating. It is demonstrated that the wavelengths over the edges of the photonic band gap contributed by the grating can be separated in a very short propagation distance. Using the finite-difference time-domain method, the result shows that the wavelengths of 1570 and 1530 nm are separated by the grating in a coupler length of 57 μm which is much shorter than the required length of about 340 μm without grating assistance. The channel contrast of 20 dB and the insertion loss about 2 dB are achieved.

Original language	English
Pages (from-to)	197-200
Number of pages	4
Journal	Optics Communications
Volume	263
Issue number	2
DOIs	https://doi.org/10.1016/j.optcom.2006.01.035
Publication status	Published - 2006 Jul 15

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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10.1016/j.optcom.2006.01.035

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title = "A novel compact wavelength-division multiplexer using highly dispersive waveguide-to-waveguide coupling",

abstract = "A novel compact wavelength-division multiplexer using highly dispersive waveguide-to-waveguide coupling is designed, simulated and analyzed. The device consists of two very close single-moded waveguides that are periodically connected to form a mode-dependent dispersive grating. It is demonstrated that the wavelengths over the edges of the photonic band gap contributed by the grating can be separated in a very short propagation distance. Using the finite-difference time-domain method, the result shows that the wavelengths of 1570 and 1530 nm are separated by the grating in a coupler length of 57 μm which is much shorter than the required length of about 340 μm without grating assistance. The channel contrast of 20 dB and the insertion loss about 2 dB are achieved.",

author = "Tsai, {Tzong Yow} and Lee, {Zhi Cheng} and Fang, {Yen Cheng} and Cha, {Ming Hong}",

note = "Funding Information: This work was financially supported by the National Science Council of Taiwan (Project No. NSC 94-2215-E-006-048).",

year = "2006",

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doi = "10.1016/j.optcom.2006.01.035",

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T1 - A novel compact wavelength-division multiplexer using highly dispersive waveguide-to-waveguide coupling

AU - Tsai, Tzong Yow

AU - Lee, Zhi Cheng

AU - Fang, Yen Cheng

AU - Cha, Ming Hong

N1 - Funding Information: This work was financially supported by the National Science Council of Taiwan (Project No. NSC 94-2215-E-006-048).

PY - 2006/7/15

Y1 - 2006/7/15

N2 - A novel compact wavelength-division multiplexer using highly dispersive waveguide-to-waveguide coupling is designed, simulated and analyzed. The device consists of two very close single-moded waveguides that are periodically connected to form a mode-dependent dispersive grating. It is demonstrated that the wavelengths over the edges of the photonic band gap contributed by the grating can be separated in a very short propagation distance. Using the finite-difference time-domain method, the result shows that the wavelengths of 1570 and 1530 nm are separated by the grating in a coupler length of 57 μm which is much shorter than the required length of about 340 μm without grating assistance. The channel contrast of 20 dB and the insertion loss about 2 dB are achieved.

AB - A novel compact wavelength-division multiplexer using highly dispersive waveguide-to-waveguide coupling is designed, simulated and analyzed. The device consists of two very close single-moded waveguides that are periodically connected to form a mode-dependent dispersive grating. It is demonstrated that the wavelengths over the edges of the photonic band gap contributed by the grating can be separated in a very short propagation distance. Using the finite-difference time-domain method, the result shows that the wavelengths of 1570 and 1530 nm are separated by the grating in a coupler length of 57 μm which is much shorter than the required length of about 340 μm without grating assistance. The channel contrast of 20 dB and the insertion loss about 2 dB are achieved.

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JO - Optics Communications

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A novel compact wavelength-division multiplexer using highly dispersive waveguide-to-waveguide coupling

Abstract

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