Low-kappa DBR grating filters on an InP generic photonic integration foundry platform

Rakesh Ranjan Kumar; Andreas Hänsel; Pau Castera; Nicolas Volet; Martijn J.R. Heck

doi:10.1364/JOSAB.518800

Low-kappa DBR grating filters on an InP generic photonic integration foundry platform

Rakesh Ranjan Kumar (Corresponding author)
, Andreas Hänsel
, Pau Castera
, Nicolas Volet
, Martijn J.R. Heck

Photonic Integration

Research output: Contribution to journal › Article › Academic › peer-review

1 Citation (Scopus)

64 Downloads (Pure)

Abstract

We demonstrate narrow-bandwidth, low-kappa, distributed Bragg reflector (DBR) grating filters on an indium phosphide (InP) generic foundry platform. With the varying corrugation widths of the DBR grating, we achieve flexibility in the design of the coupling coefficients from 10 to 50 cm⁻¹, which correspond to grating bandwidths of 0.68 nm to 1.28 nm, respectively. These values are experimentally observed and agree well with the theoretical analysis. The DBR grating is based on periodic rectangular grooves in quaternary material that is placed between the waveguide core and cladding region. Such configurations of the DBR grating provide a low propagation loss of ∼2 dB/cm near the telecom band around 1550 nm.

Original language	English
Pages (from-to)	1054-1059
Number of pages	6
Journal	Journal of the Optical Society of America B: Optical Physics
Volume	41
Issue number	4
DOIs	https://doi.org/10.1364/JOSAB.518800
Publication status	Published - 1 Apr 2024

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© 2024 Optica Publishing Group.

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title = "Low-kappa DBR grating filters on an InP generic photonic integration foundry platform",

abstract = "We demonstrate narrow-bandwidth, low-kappa, distributed Bragg reflector (DBR) grating filters on an indium phosphide (InP) generic foundry platform. With the varying corrugation widths of the DBR grating, we achieve flexibility in the design of the coupling coefficients from 10 to 50 cm−1, which correspond to grating bandwidths of 0.68 nm to 1.28 nm, respectively. These values are experimentally observed and agree well with the theoretical analysis. The DBR grating is based on periodic rectangular grooves in quaternary material that is placed between the waveguide core and cladding region. Such configurations of the DBR grating provide a low propagation loss of ∼2 dB/cm near the telecom band around 1550 nm.",

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T1 - Low-kappa DBR grating filters on an InP generic photonic integration foundry platform

AU - Kumar, Rakesh Ranjan

AU - Hänsel, Andreas

AU - Castera, Pau

AU - Volet, Nicolas

AU - Heck, Martijn J.R.

PY - 2024/4/1

Y1 - 2024/4/1

N2 - We demonstrate narrow-bandwidth, low-kappa, distributed Bragg reflector (DBR) grating filters on an indium phosphide (InP) generic foundry platform. With the varying corrugation widths of the DBR grating, we achieve flexibility in the design of the coupling coefficients from 10 to 50 cm−1, which correspond to grating bandwidths of 0.68 nm to 1.28 nm, respectively. These values are experimentally observed and agree well with the theoretical analysis. The DBR grating is based on periodic rectangular grooves in quaternary material that is placed between the waveguide core and cladding region. Such configurations of the DBR grating provide a low propagation loss of ∼2 dB/cm near the telecom band around 1550 nm.

AB - We demonstrate narrow-bandwidth, low-kappa, distributed Bragg reflector (DBR) grating filters on an indium phosphide (InP) generic foundry platform. With the varying corrugation widths of the DBR grating, we achieve flexibility in the design of the coupling coefficients from 10 to 50 cm−1, which correspond to grating bandwidths of 0.68 nm to 1.28 nm, respectively. These values are experimentally observed and agree well with the theoretical analysis. The DBR grating is based on periodic rectangular grooves in quaternary material that is placed between the waveguide core and cladding region. Such configurations of the DBR grating provide a low propagation loss of ∼2 dB/cm near the telecom band around 1550 nm.

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JF - Journal of the Optical Society of America B: Optical Physics

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ER -

Low-kappa DBR grating filters on an InP generic photonic integration foundry platform

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