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Invited Paper : Surface‐emitting‐diode lasers and laser arrays for displays
Author(s) -
Mooradian Aram,
Carey Glen,
Carico Renata,
Dato Rene,
Dudley James,
Giaretta Giorgio,
Hallstein Sascha,
Hofler Jurgen,
Hu Frank,
Jansen Mitch,
Kocot Christopher,
Krueger Joachim,
Lim Sui,
McKin Neil,
Niven Greg,
Okuno Yae,
Tandon Ashish,
Umbrasas Arvydas
Publication year - 2007
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/1.2798819
Subject(s) - laser , materials science , optoelectronics , optics , tunable laser , wavelength , blue laser , common emitter , diode , physics
— High‐power red, green, and blue laser light sources made from vertically emitting arrays of intracavity doubled IR lasers is reported. The emitted infrared light from a monolithic array of large‐aperture vertical cavity lasers is converted into visible light using a PPLN doubling crystal in an external cavity. A volume Bragg grating provides simultaneous feedback for all emitters in the array and sets the laser wavelength. Increased diffraction losses for higher‐order modes result in quasi‐Gaussian beams with excellent conversion efficiency. Green 532‐nm lasers with more than 5.8‐W visible power have been demonstrated at a base temperature of 40°C. Blue 465‐nm lasers with 4.4‐W power at 40°C are unmatched in performance and wavelength when compared to competing GaN‐based edge emitters. Typical wall‐plug efficiencies are higher than 8%. We have measured single‐emitter operating lifetimes to be more than 28,000 hours. Red lasers based on highly strained InGaAs achieve record laser powers of 2.0W at 618 nm in the same form factor as the green and blue lasers. Red single‐emitter lifetimes of more than 10,000 hours have been attained. The technology described in this paper delivers on a full suite of cost efficient and reliable red, green, and blue lasers that meet the demands of the display markets.