Focal-plane irradiance tailoring using the concept of woofer-tweeter deformable mirrors

Zexin Feng; Lei Huang; Mali Gong

doi:10.1364/OE.22.008871

Focal-plane irradiance tailoring using the concept of woofer-tweeter deformable mirrors

Zexin Feng
, Lei Huang^*
, Mali Gong

^*Corresponding author for this work

Tsinghua University

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

5 Citations (Scopus)

Abstract

Deformable mirror (DM) is a common-used active freeform optical element. We introduce the concept of Woofer-Tweeter DM system for controlling focal-plane irradiance profiles. We firstly determine a freeform reflective surface for transforming a given incident laser beam into the desired focal-plane irradiance distribution by numerically solving a standard Monge-Ampère equation. Then, we use a low-bandwidth Woofer DM to approximate the required freeform reflective surface and a highbandwidth Tweeter DM to compensate the residual error. Simulation results show that, compared with single DMs, the Woofer-Tweeter DM system brings the best focal-plane irradiance performances.

Original language	English
Pages (from-to)	8871-8879
Number of pages	9
Journal	Optics Express
Volume	22
Issue number	8
DOIs	https://doi.org/10.1364/OE.22.008871
Publication status	Published - 21 Apr 2014
Externally published	Yes

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title = "Focal-plane irradiance tailoring using the concept of woofer-tweeter deformable mirrors",

abstract = "Deformable mirror (DM) is a common-used active freeform optical element. We introduce the concept of Woofer-Tweeter DM system for controlling focal-plane irradiance profiles. We firstly determine a freeform reflective surface for transforming a given incident laser beam into the desired focal-plane irradiance distribution by numerically solving a standard Monge-Amp{\`e}re equation. Then, we use a low-bandwidth Woofer DM to approximate the required freeform reflective surface and a highbandwidth Tweeter DM to compensate the residual error. Simulation results show that, compared with single DMs, the Woofer-Tweeter DM system brings the best focal-plane irradiance performances.",

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AU - Feng, Zexin

AU - Huang, Lei

AU - Gong, Mali

PY - 2014/4/21

Y1 - 2014/4/21

N2 - Deformable mirror (DM) is a common-used active freeform optical element. We introduce the concept of Woofer-Tweeter DM system for controlling focal-plane irradiance profiles. We firstly determine a freeform reflective surface for transforming a given incident laser beam into the desired focal-plane irradiance distribution by numerically solving a standard Monge-Ampère equation. Then, we use a low-bandwidth Woofer DM to approximate the required freeform reflective surface and a highbandwidth Tweeter DM to compensate the residual error. Simulation results show that, compared with single DMs, the Woofer-Tweeter DM system brings the best focal-plane irradiance performances.

AB - Deformable mirror (DM) is a common-used active freeform optical element. We introduce the concept of Woofer-Tweeter DM system for controlling focal-plane irradiance profiles. We firstly determine a freeform reflective surface for transforming a given incident laser beam into the desired focal-plane irradiance distribution by numerically solving a standard Monge-Ampère equation. Then, we use a low-bandwidth Woofer DM to approximate the required freeform reflective surface and a highbandwidth Tweeter DM to compensate the residual error. Simulation results show that, compared with single DMs, the Woofer-Tweeter DM system brings the best focal-plane irradiance performances.

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ER -

Focal-plane irradiance tailoring using the concept of woofer-tweeter deformable mirrors

Abstract

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