Cascaded microoptical waveguide on microactuating platform structure for high-power wideband variable optical attenuator applications

Yunsong Jeong; Sang Chul Bae; Youngbok Kim; Yongmin Jung; Kyunghwan Oh

doi:10.1109/JLT.2006.872683

Cascaded microoptical waveguide on microactuating platform structure for high-power wideband variable optical attenuator applications

Yunsong Jeong, Sang Chul Bae, Youngbok Kim, Yongmin Jung, Kyunghwan Oh

Department of Physics

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

Abstract

We present a novel cascaded two-stage microoptical waveguide (MOW) on microactuating platform (MAP) structure for applications in high-power ultrawideband variable optical attenuator (VOA). The device consists of a fused biconical taper (FBT) fiber coupler, which acts as a MOW, mounted on an electromechanical system MAP, where an axial stress over the waist of FBT coupler is precisely controlled by a piezoelectric transducer actuator. Cascaded two stages with complementary spectral responses were employed to enhance the spectral flatness and optical extinction ratio, which allowed the maximum attenuation over 60 dB at 1450 nm and a low spectral tilt of < 1 dB over 100 nm for 20-dB attenuation, as well as low polarization-dependent loss of < 0.07 dB. These VOA characteristics were maintained for optical power over 1 W.

Original language	English
Pages (from-to)	2242-2247
Number of pages	6
Journal	Journal of Lightwave Technology
Volume	24
Issue number	5
DOIs	https://doi.org/10.1109/JLT.2006.872683
Publication status	Published - 2006 May

Bibliographical note

Funding Information:
Manuscript received November 29, 2005; revised February 21, 2006. This work was supported in part by the Brain Korea-21 Information Technology Project of the Ministry of Education, the Korea Science and Engineering Foundation (KOSEF), through the Ultrafast Fiber-Optic Networks Research Center at Gwangju Institute of Science and Technology (GIST).

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1109/JLT.2006.872683

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title = "Cascaded microoptical waveguide on microactuating platform structure for high-power wideband variable optical attenuator applications",

abstract = "We present a novel cascaded two-stage microoptical waveguide (MOW) on microactuating platform (MAP) structure for applications in high-power ultrawideband variable optical attenuator (VOA). The device consists of a fused biconical taper (FBT) fiber coupler, which acts as a MOW, mounted on an electromechanical system MAP, where an axial stress over the waist of FBT coupler is precisely controlled by a piezoelectric transducer actuator. Cascaded two stages with complementary spectral responses were employed to enhance the spectral flatness and optical extinction ratio, which allowed the maximum attenuation over 60 dB at 1450 nm and a low spectral tilt of < 1 dB over 100 nm for 20-dB attenuation, as well as low polarization-dependent loss of < 0.07 dB. These VOA characteristics were maintained for optical power over 1 W.",

author = "Yunsong Jeong and Bae, {Sang Chul} and Youngbok Kim and Yongmin Jung and Kyunghwan Oh",

note = "Funding Information: Manuscript received November 29, 2005; revised February 21, 2006. This work was supported in part by the Brain Korea-21 Information Technology Project of the Ministry of Education, the Korea Science and Engineering Foundation (KOSEF), through the Ultrafast Fiber-Optic Networks Research Center at Gwangju Institute of Science and Technology (GIST).",

year = "2006",

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doi = "10.1109/JLT.2006.872683",

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AU - Jeong, Yunsong

AU - Bae, Sang Chul

AU - Kim, Youngbok

AU - Jung, Yongmin

AU - Oh, Kyunghwan

N1 - Funding Information: Manuscript received November 29, 2005; revised February 21, 2006. This work was supported in part by the Brain Korea-21 Information Technology Project of the Ministry of Education, the Korea Science and Engineering Foundation (KOSEF), through the Ultrafast Fiber-Optic Networks Research Center at Gwangju Institute of Science and Technology (GIST).

PY - 2006/5

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N2 - We present a novel cascaded two-stage microoptical waveguide (MOW) on microactuating platform (MAP) structure for applications in high-power ultrawideband variable optical attenuator (VOA). The device consists of a fused biconical taper (FBT) fiber coupler, which acts as a MOW, mounted on an electromechanical system MAP, where an axial stress over the waist of FBT coupler is precisely controlled by a piezoelectric transducer actuator. Cascaded two stages with complementary spectral responses were employed to enhance the spectral flatness and optical extinction ratio, which allowed the maximum attenuation over 60 dB at 1450 nm and a low spectral tilt of < 1 dB over 100 nm for 20-dB attenuation, as well as low polarization-dependent loss of < 0.07 dB. These VOA characteristics were maintained for optical power over 1 W.

AB - We present a novel cascaded two-stage microoptical waveguide (MOW) on microactuating platform (MAP) structure for applications in high-power ultrawideband variable optical attenuator (VOA). The device consists of a fused biconical taper (FBT) fiber coupler, which acts as a MOW, mounted on an electromechanical system MAP, where an axial stress over the waist of FBT coupler is precisely controlled by a piezoelectric transducer actuator. Cascaded two stages with complementary spectral responses were employed to enhance the spectral flatness and optical extinction ratio, which allowed the maximum attenuation over 60 dB at 1450 nm and a low spectral tilt of < 1 dB over 100 nm for 20-dB attenuation, as well as low polarization-dependent loss of < 0.07 dB. These VOA characteristics were maintained for optical power over 1 W.

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Cascaded microoptical waveguide on microactuating platform structure for high-power wideband variable optical attenuator applications

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Bibliographical note

All Science Journal Classification (ASJC) codes

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