Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Optics Communications

External grating couplers on planar waveguides: Linear and nonlinear coupling and optical bistability

W. Lukosz, V. Briguet, J. Kramer

Published Dec 1, 1988• 8 citations
Publisher
DOI
10.1016/0030-4018(88)90296-9

Related papers

Bistability and Self-Pulsing Using Input Couplers on Nonlinear Planar Waveguides

W. Lukosz, P. Pirani, V. Briguet

Springer proceedings in physics•Jan 1, 1986•9 citations

External Grating Couplers on Planar Waveguides as Integrated Optical Bistable Devices

V. Briguet, J. Kramer, W. Lukosz

The 'external' grating coupler is a diffraction grating pressed against the planar waveguide in a similar way as a prism coupler. Such couplers have, to the best of our knowledge, not been used in integrated optics. The couplers normally used are surface relief gratings on the waveguide. We report on a new type of optical bistability (OB) which occurs only with external but not with normal grating couplers. The air gap of width d, where 0≤d≤λ, plays an essential role in the OB mechanism.

Topical Meeting on Optical Bistability (OB)•Jan 1, 1988•0 citations

Optical bistability in nonlinear directional coupler with Bragg reflector

哲弥 水本, Tetsuya Mizumoto

•Jul 1, 1997•0 citations

Optical bistability by photothermal displacement in grating coupler configuration: a theoretical interpretation

P. Vincent, Hassan Akhouayri, M. Nevière

The bistable behavior of an external grating coupler on a planar waveguide, which was previously discovered experimentally, is investigated by means of the electromagnetic theory of gratings. The theory accounts for all shapes of the observed hysteresis loops. The various shapes of the hysteresis loops, including the butterflylike shapes, are explained.

Journal of the Optical Society of America B•May 1, 1991•4 citations

Optical bistability by photothermal displacement in prism coupling into planar waveguides

W. Lukosz, P. Pirani, V. Briguet

We have identified photothermal displacement as a mechanism for optical bistability (OB) in prism coupling into absorbing planar waveguides: heating by the absorbed incoupled power causes a buckling of the waveguide, a reduction in air-gap width, and thus an increase in incoupling efficiency and a positive feedback. We developed a theory of this OB that qualitatively agrees well with experimental results obtained by coupling argon-laser light into indium-tin oxide layers as strongly absorbing waveguides. This new OB is quite different from dispersive OB in prism or grating couplers caused by a power-dependent effective guide index.

Optics Letters•Apr 1, 1987•18 citations

Optical Bistability in Nonlinear Directional Coupler with Bragg Reflector

Katsumi Nakatsuhara, Tetsuya Mizumoto, Eiji J. Takahashi +1 more

OPTOELECTRONICS & COMMUNICATIONS CONFERENCE•Jan 1, 1997•3 citations
The 'external' grating coupler is a diffraction grating pressed against the planar waveguide in a similar way as a prism coupler. Such couplers have, to the best of our knowledge, not been used in integrated optics. The couplers normally used are surface relief gratings on the waveguide. We report on a new type of optical bistability (OB) which occurs only with external but not with normal grating couplers. The air gap of width d, where 0≤d≤λ, plays an essential role in the OB mechanism.
We have identified photothermal displacement as a mechanism for optical bistability (OB) in prism coupling into absorbing planar waveguides: heating by the absorbed incoupled power causes a buckling of the waveguide, a reduction in air-gap width, and thus an increase in incoupling efficiency and a positive feedback. We developed a theory of this OB that qualitatively agrees well with experimental results obtained by coupling argon-laser light into indium-tin oxide layers as strongly absorbing waveguides. This new OB is quite different from dispersive OB in prism or grating couplers caused by a power-dependent effective guide index.