Results 181 to 190 of about 5,422 (232)

Spectral-acoustic-coordinated astigmatic metalens for wide field-of-view and high spatiotemporal resolution 3D imaging. [PDF]

Light Sci Appl
Gong S, Guo Y, Li X, Pu M, Tian P, Zhang Q, Chen L, Ye W, Liu H, Zhang F, Xu M, Luo X.   +11 more
europepmc   +1 more source

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Arrayed-waveguide grating multiplexer with flat spectral response

Optics Letters, 1995
The design principle of a single-mode arrayed-waveguide grating multiplexer with flat spectral response is proposed on the basis of a discrete Fourier transform. By a beam propagation-method simulation, a flat spectral region (within 1-dB loss increase) is obtained over 57.2 GHz for 100-GHz channel spacing.
K, Okamoto, H, Yamada
exaly   +3 more sources

Arrayed Waveguide Grating DWDM Interleaver

Optical Fiber Communication Conference and International Conference on Quantum Information, 2001
Arrayed waveguide grating DWDM interleavers are proposed and analyzed. With simple design rules, interleavers with low channel cross-talk and flat-top passband can be easily implemented.
null Ding-wei Huang, null Tsung-hsuan Chin, null Yinchieh Lai   +2 more
openaire   +1 more source

Silicon Nitride Arrayed Waveguide Grating with a Waveguide Superlattice

Conference on Lasers and Electro-Optics, 2020
A compact 100-GHz 1 x 8 arrayed waveguide grating with 3 dB insertion loss and -20 dB crosstalk, enabled by a novel concept of waveguide superlattice, is experimentally demonstrated.
Qi Han, Michael Menard, Wei Shi
openaire   +1 more source

Arrayed-waveguide grating multiplexers

OSA Annual Meeting, 1993
The arrayed-waveguide grating consists of input/output waveguides, two focusing concave slab waveguide regions and a phase-array of multiple channel waveguides with the path length difference ΔL between the adjacent waveguides. The light beam from the input waveguide radiates to the slab waveguide and then couples into the arrayed channel waveguides ...
K. Okamoto, H. Takahashi
openaire   +1 more source

Raman spectroscopy with an integrated arrayed-waveguide grating

Optics Letters, 2011
An integrated arrayed-waveguide grating fabricated in silicon-oxynitride technology is applied to Raman spectroscopy. After its validation by reproducing the well-known spectrum of cyclohexane, polarized Raman spectra are measured of extracted human teeth containing localized initial carious lesions.
Ismail, N., Choo-Smith, L.-P., Wörhoff, K., Driessen, A., Baclig, A.C., Caspers, P.J., Puppels, G.J., De Ridder, R.M., Pollnau, M.   +8 more
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New Analytical Arrayed Waveguide Grating Model

Journal of Lightwave Technology, 2013
An analytical model of star couplers in arrayed waveguide gratings (AWG) is derived. By retaining the real 1D mode shapes, the model is able to calculate the star coupler response to fundamental modes, as well as higher-order modes. This is desirable for modeling passband flattened AWGs. The model can calculate the response of an AWG very fast, because
Kleijn, E., Smit, M.K., Leijtens, X.J.M.
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Array waveguide gratings

Summaries of Papers Presented at the Lasers and Electro-Optics. CLEO '02. Technical Diges, 2003
Summary form only given. Fundamental operational principles and key features of AWGs are described. Then, the current performance and future prospects of AWGs and planar lightwave circuits (PLCs) are discussed. Channel numbers of AWGs have dramatically increased up to 400 ch in single wafers. In multi-chip configurations (tandem AWGs), 1010 ch has been
openaire   +1 more source