Tunable narrow-linewidth laser
A laser, narrow linewidth technology, applied in the field of silicon photonics, which can solve the problems of high driving power and serious heat loss, etc.
Active Publication Date: 2020-03-24
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology
[0005] The purpose of the present invention is to provide a tunable narrow-linewidth laser to solve the problem of high driving power and serious heat loss in the thermo-optic waveguide device in the prior art
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[0029] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0030] The core of the present invention is to provide a tunable narrow linewidth laser, the structural schematic diagram of a specific implementation is as follows figure 1 As shown, it is referred to as the first embodiment, which includes a silicon-based substrate 100, a silicon dioxide layer 200, a bonding layer 300, a microelectrode heater 400, and a laser element layer 500 from bottom to top;
[0031] T...
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Abstract
The invention discloses a tunable narrow-linewidth laser. The tunable narrow-linewidth laser sequentially comprises a silicon-based substrate, a silicon dioxide layer, a bonding layer, a microelectrode heater and a laser element layer from bottom to top. The silicon-based substrate is a continuous plate-shaped substrate, and the silicon dioxide layer is a continuous silicon dioxide layer. The laser element layer comprises a Bragg grating filter, a semiconductor optical amplifier and a rear cavity surface reflector. The microelectrode heater is arranged between the Bragg grating filter and therear cavity surface reflector. According to the invention, through changing the position of the microelectrode heater, the microelectrode heater is arranged close to each thermo-optical waveguide device in the laser element layer, wherein the temperature of each thermo-optical waveguide device needs to be changed through heating so as to change the optical performance of each thermo-optical waveguide device. Heat can be conducted without hindrance, and the driving power of the thermo-optical waveguide device is greatly reduced. Meanwhile, heat loss in heat transfer is also reduced, the energyutilization rate and the working stability are improved, and the cost is reduced.
Description
technical field [0001] The invention relates to the field of silicon photonics, in particular to a tunable narrow-linewidth laser. Background technique [0002] A tunable laser refers to a laser that can continuously change the laser output wavelength within a certain range. Compared with other traditional solid-state lasers, it has a wide-band tuning range from near-ultraviolet to near-infrared, and its own size is small , narrow line width and high optical efficiency, which make it have important application prospects in single chip laboratory, medical diagnosis, dermatology and other fields. [0003] With the advancement of technology, existing tunable lasers usually use silicon photonics technology, which can integrate discrete devices such as light sources, modulators, optical waveguides, and detectors on the same silicon-based substrate through planar optical waveguide technology. , the obtained device has high integration, low cost and is compatible with CMOS technol...
Claims
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IPC IPC(8): H01S5/022H01S5/024H01S5/14H01S5/50
CPCH01S5/02208H01S5/02453H01S5/141H01S5/50
Inventor 梁磊贾鹏王彪王玉冰秦莉宁永强
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI