Multi-wavelength ring laser chip
A ring laser, multi-wavelength technology, used in lasers, laser parts, phonon exciters, etc., to solve the problem of on-chip optical signal amplification, convenient manufacturing, high reliability and environmental adaptability
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[0030] The present invention will be further explained below in conjunction with specific embodiments.
[0031] refer to Figure 1-9 , a multi-wavelength ring laser chip, comprising a chip substrate 1, the upper surface of the chip substrate 1 is successively provided with a chip lower cladding layer 2 and a chip upper cladding layer 4, and between the chip lower cladding layer 2 and the chip upper cladding layer 4 The core layer 3, the core layer 3 is spliced by the active waveguide core layer 31 and the passive waveguide core layer 32, the material of the active waveguide core layer 31 is an erbium-doped lithium niobate single crystal film, the passive waveguide core layer 32 The material is lithium niobate single crystal thin film. The thickness of the erbium-doped lithium niobate single crystal thin film and the lithium niobate single crystal thin film is 700nm. The chip substrate 1 is made of lithium niobate or silicon, and the chip lower cladding layer 2 and the chip...
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