Advances, challenges and prospects of visible fiber lasers in display technologies
Especially for displays, visible-wavelength lasers are in high demand for a wide range of
applications. Active research and development have been devoted to laser-based displays …
applications. Active research and development have been devoted to laser-based displays …
Speckle reduction in laser projection displays through angle and wavelength diversity
TTK Tran, Ø Svensen, X Chen, M Nadeem Akram - Applied optics, 2016 - opg.optica.org
Speckle is the main obstacle for the use of laser light sources in projection technology. This
paper focuses on speckle suppression by the reduction of temporal coherence which is …
paper focuses on speckle suppression by the reduction of temporal coherence which is …
Speckle noise suppression in digital holography by angular diversity with phase-only spatial light modulator
A speckle noise suppression method in digital holography is proposed by the angular
diversity with a phase-only spatial light modulator (SLM). The minimal angular difference of …
diversity with a phase-only spatial light modulator (SLM). The minimal angular difference of …
Speckle contrast for superposed speckle patterns created by rotating the orientation of laser polarization
For a rough diffuser that fully depolarizes a linearly polarized laser, the speckle contrast of a
fully developed speckle image can be reduced from 1 to 0.5 by polarization diversity. This …
fully developed speckle image can be reduced from 1 to 0.5 by polarization diversity. This …
Combination of micro-scanning mirrors and multi-mode fibers for speckle reduction in high lumen laser projector applications
In high lumen laser projectors, it is required to use laser diodes coupled to multi-mode fibers
(MMFs) to obtain a high power illumination module. In this paper, we have fabricated an …
(MMFs) to obtain a high power illumination module. In this paper, we have fabricated an …
High-efficiency static speckle-suppression method based on a combination of beam splitting cavity and liquid-core fiber
H Mao, W Zhou, W Gao, Y Cao, Z Le - Optics Express, 2023 - opg.optica.org
Current static speckle suppression methods have an extremely large system size and
unsatisfactory performance. This study proposes a device called beam-splitting cavity (BSC) …
unsatisfactory performance. This study proposes a device called beam-splitting cavity (BSC) …
Compound speckle characterization method and reduction by optical design
Speckle and the compound speckle can be reduced by angle diversity. In laser projection
displays, simple, low cost and efficient speckle reduction techniques require smart optical …
displays, simple, low cost and efficient speckle reduction techniques require smart optical …
Speckle reduction in laser picoprojector by combining optical phase matrix with twin green lasers and oscillating MEMS mirror for coherence suppression
The combined speckle reduction method is proposed and designed for laser picoprojectors
taking small size, high optical power, and good image preservation into account. An optical …
taking small size, high optical power, and good image preservation into account. An optical …
Principle, design and fabrication of a passive binary micro-mirror array (BMMA) for speckle reduction in grating light valve (GLV) based laser projection displays
A binary micro-mirror array (BMMA) is proposed for speckle reduction in grating light valve
based laser projectors. The mirrors are driven by the electrostatic force, and have two states …
based laser projectors. The mirrors are driven by the electrostatic force, and have two states …
A ferroelectric liquid crystal spatial light modulator encoded with orthogonal arrays and its optimized design for laser speckle reduction
In laser projectors, speckle reduction can be achieved by projecting a changing binary
phase diffuser onto the screen. Here, we sequentially encoded a commercialized …
phase diffuser onto the screen. Here, we sequentially encoded a commercialized …