By 1989, the LD with a width of 0.1mm had reached a continuous output of 3.7W.
Release time:
2024-03-27
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For example, distributed feedback (DFB) and dynamic single-mode LD for optical fiber communication and optical switching systems, narrow linewidth tunable DFB-LD, visible light waves for information processing technology such as optical discs.
For example, distributed feedback (DFB) and dynamic single-mode LDs used in optical fiber communication and optical switching systems, narrow linewidth tunable DFB-LD, visible light wavelength (such as red to blue-green light with wavelengths of 670nm, 650nm, and 630nm) LDs used in information processing technology fields such as optical discs, quantum well surface emitting lasers, and ultrashort pulse LDs have all been substantially developed. The development characteristics of these devices are: single frequency narrow line width, high speed, tunable and short wavelength and photoelectric monolithic integration.
High power
In 1983, the output power of a single LD with a wavelength of 800nm exceeded 100mW. In 1989, the LD with a width of 0.1mm reached a continuous output of 3.7W, while the LD with a linear array of 1cm reached 76W, with a conversion efficiency of 39%. In 1992, the Americans raised the index to a new level: the output power of 1cm linear array LD continuous wave reached 121W, and the conversion efficiency was 45%. Output power of 120W, 1500W, 3kW and many other high power LD have been available. The rapid development of high-efficiency, high-power LDs and their arrays also provide strong conditions for the rapid development of full-solidification lasers, that is, semiconductor laser-pumped (LDP) solid-state lasers.
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