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

Nan Yu | Zendy; Ju Won Choi | Zendy; Heejong Kang | Zendy; DoKyeong Ko | Zendy; Shih-Hao Fu | Zendy; Jiun-Wei Liou | Zendy; Andy Kung | Zendy; Hee Joo Choi | Zendy; Byoung Joo Kim | Zendy; Myoungsik Cha | Zendy; LungHan Peng | Zendy

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

Author(s) -

Nan Yu,

Ju Won Choi,

Heejong Kang,

DoKyeong Ko,

Shih-Hao Fu,

Jiun-Wei Liou,

Andy Kung,

Hee Joo Choi,

Byoung Joo Kim,

Myoungsik Cha,

LungHan Peng

Publication year - 2014

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.003547

Subject(s) - optics , lithium niobate , materials science , broadband , bandwidth (computing) , laser , speckle noise , speckle pattern , wavelength , optoelectronics , physics , telecommunications , computer science

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.

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