Talbot-like bands for a laser diode below threshold

Adiran G. Podoleanu; S.R. Taplin; David J. Webb; David A. Jackson

doi:10.1088/0963-9659/6/3/010

Talbot-like bands for a laser diode below threshold

Adiran G. Podoleanu, S.R. Taplin, David J. Webb, David A. Jackson

Aston Institute of Photonic Technologies (AiPT)

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

Abstract

We report on the problems encountered when replacing a tungsten filament lamp with a laser diode in a set-up for displaying Talbot bands using a diffraction grating. It is shown that the band pattern is rather complex and strong interference signals may exist in situations where Talbot bands are not normally expected to appear. In these situations, the period of the bands increases with the optical path difference (OPD). The visibility of bands as dependence on path imbalance is obtained by suitably obstructing halfway into the arms of a Michelson interferometer using opaque screens.

Original language	English
Pages (from-to)	413-424
Number of pages	12
Journal	Pure and Applied Optics
Volume	6
Issue number	3
DOIs	https://doi.org/10.1088/0963-9659/6/3/010
Publication status	Published - May 1997

Keywords

tungsten filament lamp
laser diode
Talbot bands
diffraction grating
interference signals
optical path difference
Michelson interferometer
opaque screens

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10.1088/0963-9659/6/3/010

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title = "Talbot-like bands for a laser diode below threshold",

abstract = "We report on the problems encountered when replacing a tungsten filament lamp with a laser diode in a set-up for displaying Talbot bands using a diffraction grating. It is shown that the band pattern is rather complex and strong interference signals may exist in situations where Talbot bands are not normally expected to appear. In these situations, the period of the bands increases with the optical path difference (OPD). The visibility of bands as dependence on path imbalance is obtained by suitably obstructing halfway into the arms of a Michelson interferometer using opaque screens.",

keywords = "tungsten filament lamp, laser diode, Talbot bands, diffraction grating, interference signals, optical path difference, Michelson interferometer, opaque screens",

author = "Podoleanu, {Adiran G.} and S.R. Taplin and Webb, {David J.} and Jackson, {David A.}",

year = "1997",

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T1 - Talbot-like bands for a laser diode below threshold

AU - Podoleanu, Adiran G.

AU - Taplin, S.R.

AU - Webb, David J.

AU - Jackson, David A.

PY - 1997/5

Y1 - 1997/5

N2 - We report on the problems encountered when replacing a tungsten filament lamp with a laser diode in a set-up for displaying Talbot bands using a diffraction grating. It is shown that the band pattern is rather complex and strong interference signals may exist in situations where Talbot bands are not normally expected to appear. In these situations, the period of the bands increases with the optical path difference (OPD). The visibility of bands as dependence on path imbalance is obtained by suitably obstructing halfway into the arms of a Michelson interferometer using opaque screens.

AB - We report on the problems encountered when replacing a tungsten filament lamp with a laser diode in a set-up for displaying Talbot bands using a diffraction grating. It is shown that the band pattern is rather complex and strong interference signals may exist in situations where Talbot bands are not normally expected to appear. In these situations, the period of the bands increases with the optical path difference (OPD). The visibility of bands as dependence on path imbalance is obtained by suitably obstructing halfway into the arms of a Michelson interferometer using opaque screens.

KW - tungsten filament lamp

KW - laser diode

KW - Talbot bands

KW - diffraction grating

KW - interference signals

KW - optical path difference

KW - Michelson interferometer

KW - opaque screens

UR - http://iopscience.iop.org/0963-9659/6/3/010

U2 - 10.1088/0963-9659/6/3/010

DO - 10.1088/0963-9659/6/3/010

M3 - Article

SN - 0963-9659

VL - 6

SP - 413

EP - 424

JO - Pure and Applied Optics

JF - Pure and Applied Optics

IS - 3

ER -

Talbot-like bands for a laser diode below threshold

Abstract

Keywords

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