Tunable Dispersion and Dispersion Slope Compensator Based on Two Twin Chirped FBGs with Temperature Gradient for 160 Gbit/s Transmission(<Special Section>Ultrafast Photonics)
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概要
- 論文の詳細を見る
We have developed the tunable dispersion compensator based on two twin linearly chirped fiber Bragg gratings with various temperature gradients. Controlling the temperature gradient over one of the twin fiber Bragg gratings by Peltier elements, the dispersion and the dispersion slope were changed independently and continuously. The dispersion and dispersion slope compensator has a large bandwidth of 8nm and low group-delay ripple of <4ps in its chirped fiber Bragg gratings. We experimentally demonstrated a precise controll ability of the dispersion and the dispersion slope using linear and parabolic temperature gradient. The dispersion and the dispersion slope changes were achieved continuously with -0.67ps/nm/℃ and -0.14ps/nm^2/℃. The transmission characteristics of the dispersion slope compensation were examined using ultra short pulses in the fiber link. When the total dispersion was zero, the distorted pulse was restored back and the tail was significantly suppressed. 160 Gbit/s signals were also demonstrated over 140km within 1dB power penalty by using the dispersion slope compensator.
- 2004-07-01
著者
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WAKABAYASHI Shin-ichi
Advanced Technology Research Laboratories, Matsushita Electric Industrial Co., Ltd.
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MORIYA Hitomi
Advanced Technology Research Laboratories, Matsushita Electric Industrial Co., Ltd.
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BABA Asako
Advanced Technology Research Laboratories, Matsushita Electric Industrial Co., Ltd.
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Wang X
Tsinghua Univ. Beijing Chn
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Baba A
Tohoku Univ. Sendai‐shi Jpn
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Moriya Hitomi
Advanced Technology Research Labs. Matsushita Electric Industrial Co. Ltd.
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Hasegawa Takehiro
The Femtosecond Technology Research Association
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Wakabayashi Shin-ichi
Advanced Technology Research Labs. Matsushita Electric Industrial Co. Ltd.
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WANG Xiaomin
the Center for Applied Near Field Optics Research, National Institute of Advanced Industrial Science
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HASEGAWA Tatsushi
Femtosecond Technology Research Association
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SUZUKI Akira
Femtosecond Technology Research Association
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Suzuki A
The Femtosecond Technology Research Association
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