Direct-dimming-type InP-based monolithic integration few-mode optical communication transmitter chip
A single-chip integration and chip technology, applied in the field of optical communication, can solve the problems of sensitive device cost and large demand for optical transceivers, reduce the difficulty and cost of overall manufacturing, reduce the difficulty of chip preparation and the complexity of peripheral circuits, and avoid The effect of complex structures
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[0029] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail in conjunction with specific embodiments and with reference to the accompanying drawings.
[0030] figure 1 It is a schematic structural diagram of a direct modulation InP-based monolithic integrated few-mode optical communication transmitter chip according to an embodiment of the present invention, such as figure 1 As shown, the directly modulated InP-based monolithic integrated few-mode optical communication transmitter chip includes an InP-based semiconductor laser array 1, a multimode interference power beam splitter 2, a phase shifter 3, a multimode interference mode multiplexer 4, and an optical Waveguide connection structure 5, in which:
[0031] The InP-based semiconductor laser array 1 is used to convert the signal to be transmitted into a modulated fundamental mode optical signal, specifically, the cur...
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