Speckle noise reduction on a laser projection display via a broadband green light source

Nan Ei Yu, Ju Won Choi, Heejong Kang, Do Kyeong Ko, Shih Hao Fu, Jiun Wei Liou, Andy H. Kung, Hee Joo Choi, Byoung Joo Kim, Myoungsik Cha, Lung Han Peng

Research output: Contribution to journalArticlepeer-review

47 Scopus citations

Abstract

A broadband green light source was demonstrated using a tandem-poled lithium niobate (TPLN) crystal. The measured wavelength and temperature bandwidth were 6.5 nm and 100°C, respectively, spectral bandwidth was 36 times broader than the periodically poled case. Although the conversion efficiency was smaller than in the periodic case, the TPLN device had a good figure of merit owing to the extremely large bandwidth for wavelength and temperature. The developed broadband green light source exhibited speckle noise approximately one-seventh of that in the conventional approach for a laser projection display.

Original languageEnglish (US)
Pages (from-to)3547-3556
Number of pages10
JournalOptics Express
Volume22
Issue number3
DOIs
StatePublished - Feb 10 2014
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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