High Resolution Compact Spectrometer Based on Resonance Domain Diffractive Lens

Omri Barlev, Michael A. Golub

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

We experimentally demonstrate a compact optical spectrometer with a resolution of up to ∼ 0.1 nm suitable for spectral line measurements of laser diodes. This spectrometer is based on a transmission, 4-mm in diameter, and 0.14-NA off-axis binary resonance domain diffractive lens with strong lateral and longitudinal chromatic dispersion. After calibration with a mercury-argon source and a helium-neon laser, we measured the spectrum of RGB laser diodes. The results confirm the theoretical resolution and are in good match to data from optical spectrum analyzer with 0.05-nm resolution.

Original languageEnglish
Article number7329940
Pages (from-to)577-580
Number of pages4
JournalIEEE Photonics Technology Letters
Volume28
Issue number5
DOIs
StatePublished - 1 Mar 2016

Funding

FundersFunder number
Israel Science Foundation1542/11
Ministry of Science and Technology, Israel

    Keywords

    • Bragg gratings
    • diffractive lens
    • holography
    • spectroscopy

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