Strong sampled Bragg gratings for WDM applications

Hübner, Jörg; Zauner, Dan A.; Kristensen, Martin

doi:10.1109/68.662591

Cited by 41 publications

(13 citation statements)

References 5 publications

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“…This spectrum has ∆ λ s = 0.966 nm and a 3 dB bandwidth that spans almost 40 nm, where the central 11 rejection peaks are each over 20 dB strong. To our knowledge the strength and bandwidth of this grating is comparable to the best results observed in optical fibre [18,25,26]. Using Eq.…”

Section: Results and Analysissupporting

confidence: 76%

Sampled Bragg gratings in chalcogenide (As₂S₃) rib-waveguides

Baker¹,

Lee²,

Littler³

et al. 2006

Opt. Express

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We have written a sampled Bragg grating into a highly photosensitive chalcogenide (As(2)S(3)) rib-waveguide using a scanning Sagnac interferometer. The grating exhibits evenly spaced rejection peaks over a 40 nm bandwidth. We estimate the induced refractive index change of the waveguide to be over 0.03 by matching the measured spectrum to numerical solutions of the coupled mode equations while accounting for an induced chirp. The sampled Bragg grating presented is comparable in strength and bandwidth to the best sampled Bragg gratings obtained to date in silica optical fibre.

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Section: Results and Analysissupporting

confidence: 76%

Sampled Bragg gratings in chalcogenide (As₂S₃) rib-waveguides

Baker¹,

Lee²,

Littler³

et al. 2006

Opt. Express

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“…To further the research, sampled gratings are investigated. Sample gratings have found applications in both passive and active photonic components, such as multichannel optical filters and add/drop multiplexer [6], Vernier effect based CItunable lasers [7], and optical combs [8]. They are constructed by multiplying a sampling function to a uniform grating, which leads to a reflection spectrum with periodic maxima [9].…”

Section: Sinx Gratings In Polymermentioning

confidence: 99%

Low-loss silicon nitrite waveguides in polymer

Zhang¹,

Li²,

Keil³

et al. 2013

SPIE Proceedings

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Recent progress of low-loss silicon nitride waveguide in polymer is presented. The fabrication technology requires only low temperature (<200°C) processes and standard photolithography. These waveguides feature a large geometric aspect ratio, resulting in a strong waveguide birefringence. For the TM mode an average propagation loss of about 0.72 dB/cm is measured, while for the TE mode the value is about 0.96 dB/cm. Also demonstrated are uniform Bragg-grating filters and sampled grating filters. Since the waveguide modes are weakly guided and the majority of light field distributes in the polymer cladding, various optical properties of the polymer materials can be exploited. A thermally tunable waveguide Bragg grating is thus demonstrated, with wavelength tuning range above 57 nm for the TM mode and 49 nm for the TE mode, at a tuning power of about 220 mW

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“…As an example of utilization and to prove the usability of the method, we used it to generated permanent sampled fibre Bragg grating during direct writing of a uniform Bragg grating similar to those first produced by lithography in semiconductors [4]. This is useful for creating complex filter devices suitable for signal multiplexing and demultiplexing or for serving as multiple narrowband transmission filters in photonic applications [5]. These were obtained by applying a longitudinal acoustic wave to the fibre during the grating inscription process.…”

Section: Introductionmentioning

confidence: 99%