Fiber laser red-green-blue (RGB) light source
First Claim
1. A red-green-blue (RGB) light source, comprising:
- an optical fiber laser configured to emit a near-infrared (NIR) light beam having a single NIR wavelength; and
a wavelength conversion system optically coupled to the optical fiber laser and having three or fewer non-linear optical (NLO) crystals, wherein the wavelength conversion system is configured to receive the single-wavelength NIR light beam and create therefrom red-, green- and blue-wavelength light beams BR, BG and BB using only light originating from the single-wavelength NIR light beam.
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Abstract
An RGB light source that uses an optical fiber laser to generate a near-infrared (NIR) output light beam, and a wavelength conversion system that receives the output NIR light beam and forms therefrom red, green and blue light beams. The fiber laser includes multiple stages, wherein the first stage includes a solid-state laser to generate an initial NIR light beam. One or more subsequent stages operate to amplify the NIR light beam to form a relatively high-average-power output NIR light beam. Only light from the fiber laser is used to generate the red, green and blue-wavelength output light beams. The wavelength conversion system includes three or fewer non-linear optical (NLO) units. A color display that utilizes the RGB light source is also disclosed.
26 Citations
20 Claims
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1. A red-green-blue (RGB) light source, comprising:
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an optical fiber laser configured to emit a near-infrared (NIR) light beam having a single NIR wavelength; and a wavelength conversion system optically coupled to the optical fiber laser and having three or fewer non-linear optical (NLO) crystals, wherein the wavelength conversion system is configured to receive the single-wavelength NIR light beam and create therefrom red-, green- and blue-wavelength light beams BR, BG and BB using only light originating from the single-wavelength NIR light beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A red-green-blue (RGB) light source, comprising:
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an optical fiber laser configured to output a single-wavelength near-infrared (NIR) output light beam BN; and a wavelength conversion system optically coupled to the fiber laser and having; i) a first non-linear-optics (NLO) unit adapted to receive the single-wavelength NIR light beam BN and perform second harmonic generation (SHG) thereon so as to create a green-wavelength light beam BG; ii) a second NLO unit configured to receive at least a portion of light beam BG and create therefrom a red-wavelength light beam BR and a mid-infrared (MIR) light beam BM; and iii) a third NLO unit configured to receive at least a portion of light beam BG and at least a portion of light beam BM and form therefrom a blue-wavelength light beam BB. - View Dependent Claims (13, 14, 15, 16)
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17. A method of producing red wavelength, green wavelength and blue wavelength light beams BR, BG and BB, comprising:
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forming a near-infrared (NIR) single-wavelength light beam BN using an optical fiber laser; and converting light from the single-wavelength NIR light beam to the red, green and blue light beams BR, BG and BB using no more than three non-linear crystals and using only light originating from the single-wavelength NIR light beam BN. - View Dependent Claims (18, 19, 20)
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Specification