Ultra-low-loss inverted taper coupler for silicon-on-insulator ridge waveguide

Pu, Minhao; Liu, Liu; Ou, Haiyan; Yvind, Kresten; Hvam, Jørn Märcher

doi:10.1016/j.optcom.2010.05.034

Cited by 210 publications

(120 citation statements)

References 13 publications

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“…The width at the end of the silicon waveguide is tapered from 450 nm to a tiny tip end of 40 nm so that the guided mode will be expanded into a polymer waveguide, surrounding the SOI waveguide and the taper. loss [11]. The measured propagation loss is 4.7 dB/cm and the device insertion loss is 7 dB.…”

Section: Experimental Setup and Proceduresmentioning

confidence: 92%

1.28-Tb/s Demultiplexing of an OTDM DPSK Data Signal Using a Silicon Waveguide

Galili

et al. 2010

IEEE Photon. Technol. Lett.

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Abstract-This letter demonstrates optical demultiplexing of a 1.28-Tb/s serial differential phase-shift-keying data signal using a nano-engineered silicon waveguide. We first present error-free performance at 640 Gb/s and then at 1.28 Tb/s with characterization of all 128 channels. Bit-error rates below 10 9 are achieved for some channels and below forward-error-correction limit for all channels, corresponding to a 1.19-Tb/s error-free data signal.Index Terms-Nano-engineered silicon waveguide, optical communication, ultrafast optical signal processing.

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Section: Experimental Setup and Proceduresmentioning

confidence: 92%

1.28-Tb/s Demultiplexing of an OTDM DPSK Data Signal Using a Silicon Waveguide

Galili

et al. 2010

IEEE Photon. Technol. Lett.

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“…The designed waveguide is fabricated on silicon-on-insulator (SOI) material using electron-beam lithography followed by reactive-ion etching (RIE). The 3-mm long silicon waveguide is inversely tapered at both ends, from 450 nm to less than 20nm and covered by a polymer waveguide for efficient fiber coupling [12]. The propagation loss of the silicon waveguide is ~4.3 dB/cm and the fiber-to-fiber loss of the device is ~4 dB.…”

Section: Device Design and Characterizationmentioning

confidence: 99%

15-THz Tunable Wavelength Conversion of Picosecond Pulses in a Silicon Waveguide

Galili

et al. 2011

IEEE Photon. Technol. Lett.

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Abstract-We demonstrate all-optical ultra-broadband tunable wavelength conversion of one-picosecond pulses based on four-wave mixing in a 3-millimeter long dispersion engineered silicon waveguide. In the waveguide, an input pulse with center wavelength at 1600 nm is down-converted by 135 nm (17.3 THz) to 1465 nm. A tuning range of 115 nm (15 THz, from 1465 nm to 1580 nm) of the converted wavelength is demonstrated, while keeping conversion efficiency, pulse shape and pulse width almost unchanged.

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“…Fiber to chip coupling can be accomplished both in-plane and out of plane ways. The former is typically done through edge coupling by means of an adiabatic spot size converter [6][7][8]. It essentially involves a lensed fiber placed at the end facet of a chip with an inverse tapered Si spot size waveguide embedded in an overlay medium that matches the fiber cross section (see Figure 1).…”

Section: Introductionmentioning

confidence: 99%

“…As light propagates through the wire waveguide (which converges to a spot), the mode expands adiabatically in the overlay resulting in a near perfect overlap with the fiber mode at the spot end. Inverse tapers have been found to yield losses as low as -0.36 dB/facet [8]. In addition, edge couplers tend to have a low polarization sensitivity and exhibit a broadband response of 200-300 nm.…”

Section: Introductionmentioning

confidence: 99%

Grating-Assisted Fiber to Chip Coupling for SOI Photonic Circuits

2018

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Fiber to chip coupling is a critical aspect of any integrated photonic circuit. In terms of ease of fabrication as well as wafer-scale testability, surface grating couplers are by far the most preferred scheme of the coupling to integrated circuits. In the past decade, considerable effort has been made for designing efficient grating couplers on Silicon-on-Insulator (SOI) and other allied photonic platforms. Highly efficient grating couplers with sub-dB coupling performance have now been demonstrated. In this article, we review the recent advances made to develop grating coupler designs for a variety of applications on SOI platform. We begin with a basic overview of design methodology involving both shallow etched gratings and the emerging field of subwavelength gratings. The feasibility of reducing footprint by way of incorporating compact tapers is also explored. We also discuss novel grating designs like polarization diversity as well as dual band couplers. Lastly, a brief description of various packaging and wafer-scale testing schemes available for fiber-chip couplers is elaborated.

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Ultra-low-loss inverted taper coupler for silicon-on-insulator ridge waveguide

Cited by 210 publications

References 13 publications

1.28-Tb/s Demultiplexing of an OTDM DPSK Data Signal Using a Silicon Waveguide

1.28-Tb/s Demultiplexing of an OTDM DPSK Data Signal Using a Silicon Waveguide

15-THz Tunable Wavelength Conversion of Picosecond Pulses in a Silicon Waveguide

Grating-Assisted Fiber to Chip Coupling for SOI Photonic Circuits

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