Small core rib waveguides with embedded gratings in As2Se3 glass

Ponnampalam, N.; DeCorby, R. G.; Nguyen, Hoa Thi; Dwivedi, Prabhat K.; Haugen, C.J.; McMullin, J.N.; Kasap, S. O.

doi:10.1364/opex.12.006270

Cited by 39 publications

(23 citation statements)

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“…21 To date, in reports of holographically written Bragg gratings in ChG-based fibers and waveguides, Mach-Zehnder interferometers have been employed, 15,16,[22][23][24] which are par- ticularly sensitive to environmental disturbances (mechanical vibrations, thermal gradients, and air currents). This sensitivity affects the stability of the interference pattern over time and hence the quality of the Bragg grating-especially during long write times.…”

Section: Waveguide Structure and Writing Setupmentioning

confidence: 99%

High-performance Bragg gratings in chalcogenide rib waveguides written with a modified Sagnac interferometer

et al. 2006

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OSA grants to the Author(s) (or their employers, in the case of works made for hire) the following rights:(b)The right to post and update his or her Work on any internet site (other than the Author(s') personal web home page) provided that the following conditions are met: (i) access to the server does not depend on payment for access, subscription or membership fees; and (ii) any such posting made or updated after acceptance of the Work for publication includes and prominently displays the correct bibliographic data and an OSA copyright notice (e.g. "© 2009 The Optical Society"). We demonstrate the highest-quality Bragg gratings reported to date in chalcogenide glass rib waveguides, both in strength and apodization. A modified Sagnac interferometer is employed to write gratings in As 2 S 3 -based rib waveguides, achieving an induced refractive index modulation of the order of 10 −2 and a grating transmission rejection of more than 30 dB. We obtain good agreement between experimental and theoretical results based on a transfer-matrix formulation for multilayer optical structures. In addition, we report fabrication of phaseshifted Bragg gratings, as well as an investigation of the role of birefringence, higher-order modes, and aging. Finally, grating growth dynamics are investigated by in situ monitoring during writing.

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Section: Waveguide Structure and Writing Setupmentioning

confidence: 99%

High-performance Bragg gratings in chalcogenide rib waveguides written with a modified Sagnac interferometer

et al. 2006

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“…8 Furthermore Ponnampalam et al 9 reported the production of rib waveguides by selective chemical etching of photodarkened As 2 Se 3 glass and obtained losses also down to 0.25 dB/ cm. These values are sufficiently low to allow integrated devices containing waveguides several tens of centimeters long to be fabricated.…”

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confidence: 99%

Large phase shifts in As_2S_3 waveguides for all-optical processing devices

Ruan

Luther‐Davies

et al. 2005

Opt. Lett.

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“…TPA and FCA losses are negligible in chalcogenide glasses, benefited from their large optical bandgap and low carrier mobility 2 . Furthermore, successful fabrications of µm-size chalcogenide rib waveguide using standard complimentary metal-on-silicon (CMOS) have been demonstrated recently, making them an ideal choice for on-chip laser source 3,4 . As 2 Se 3 looks particularly appealing for waveguide Raman laser with its highest reported Raman gain 6 .…”

Section: Introductionmentioning

confidence: 99%