What question did this study set out to answer?

To directly inscribe buried optical waveguides within bulk crystalline silicon using ultrafast mid-infrared laser pulses.

May 1, 2005Optics Letters

Inscription of optical waveguides in crystalline silicon by mid-infrared femtosecond laser pulses

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Authors

ANAmir H. NejadmalayeriUniversity of Waterloo PHPeter R. HermanUniversity of Toronto JBJonas BurghoffSchiller International University

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Implication

Experimental study demonstrates direct inscription of single-mode optical waveguides in crystalline silicon using mid-infrared pulses, highlighting new pathways for monolithic photonic integration.

Key Points

To directly inscribe buried optical waveguides within bulk crystalline silicon using ultrafast mid-infrared laser pulses.
Irradiated crystalline silicon with femtosecond laser pulses at a 2.4-micrometer wavelength featuring a 40-nm spectral bandwidth, 1-kHz repetition rate, and 1.7-microjoule on-target pulse energy.
Translated the sample relative to the focused laser beam to induce localized nonlinear absorption and write buried waveguiding tracks.
Inscribed single-mode optical waveguides operating across telecommunications wavelengths of 1320 nm and 1550 nm.
Demonstrated strict polarization-selective guiding, supporting only light polarized perpendicular to the sample surface.
Achieved low waveguide propagation losses with an upper limit of 1.2 dB/cm or less across the telecommunications band.

Cite This Study

Nejadmalayeri et al. (2005) studied this question.

synapsesocial.com/papers/6a937a7bf9fa1e75f2f9882b https://doi.org/10.1364/ol.30.000964

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May 1, 2005Optics Letters

Inscription of optical waveguides in crystalline silicon by mid-infrared femtosecond laser pulses

View Full Paper

Ask AI

Bookmark

Authors

ANAmir H. NejadmalayeriUniversity of Waterloo PHPeter R. HermanUniversity of Toronto JBJonas BurghoffSchiller International University

Discussion

Member takes

Implication

Experimental study demonstrates direct inscription of single-mode optical waveguides in crystalline silicon using mid-infrared pulses, highlighting new pathways for monolithic photonic integration.

Key Points

To directly inscribe buried optical waveguides within bulk crystalline silicon using ultrafast mid-infrared laser pulses.
Irradiated crystalline silicon with femtosecond laser pulses at a 2.4-micrometer wavelength featuring a 40-nm spectral bandwidth, 1-kHz repetition rate, and 1.7-microjoule on-target pulse energy.
Translated the sample relative to the focused laser beam to induce localized nonlinear absorption and write buried waveguiding tracks.
Inscribed single-mode optical waveguides operating across telecommunications wavelengths of 1320 nm and 1550 nm.
Demonstrated strict polarization-selective guiding, supporting only light polarized perpendicular to the sample surface.
Achieved low waveguide propagation losses with an upper limit of 1.2 dB/cm or less across the telecommunications band.

Cite This Study

Nejadmalayeri et al. (2005) studied this question.

synapsesocial.com/papers/6a937a7bf9fa1e75f2f9882b https://doi.org/10.1364/ol.30.000964

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