Journal of Lightwave Technology
DOI: 10.1109/ofc.2003.1247634
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Tapered silicon waveguides for low insertion loss highly-efficient high-speed electronic variable optical attenuators

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Cited by 49 publications
(29 citation statements)
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“…The propagation loss of light along the waveguide due to linear absorption and TPA can be described by (1) where is the propagation direction, is the linear absorption, is the optical intensity, and is the TPA coefficient. Fig.…”
Section: Tpamentioning
confidence: 99%
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“…The propagation loss of light along the waveguide due to linear absorption and TPA can be described by (1) where is the propagation direction, is the linear absorption, is the optical intensity, and is the TPA coefficient. Fig.…”
Section: Tpamentioning
confidence: 99%
“…The linear loss of the waveguide was 0.1 dB/cm. The tapered waveguide had etched and doping trenches to either side of the nontapered section and antireflection (AR) coatings on both facets as described in [1]. A distributed feedback (DFB) laser, gain-switched by an electrical impulse generator, was used to produce 40-ps optical pulses with 1-MHz repetition rate.…”
Section: Tpamentioning
confidence: 99%
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“…However, no simple, local probe exists for wafer-scale, nondestructive, optical characterization of on-chip components. Traditional optical coupling methods include end-fire or butt coupling [3][4][5] and prism-based coupling [6,7]. End-fire coupling from free-space or optical fibers can be made highly efficient, even to highindex contrast semiconductor waveguides, through the use of tapered waveguide sections [3][4][5] or other non-adiabatic mode converters [8,9], but they are limited to coupling at the periphery of the chip where a cleaved facet can be formed.…”
Section: Introductionmentioning
confidence: 99%
“…1-side in, 1-side out ), The device comes in 4 or 8 channel configuration, and is based on a classic butterfly housing. Pigtailing of the fiber arrays is based on an adiabatic taper [98].…”
Section: Fiber Pigtailingmentioning
confidence: 99%