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Delay-free, spectrally flat, broadband photonic integrated chaotic semiconductor laser

A photonic integration and semiconductor technology, applied in semiconductor lasers, lasers, phonon exciters, etc., can solve the problems of uneven spectrum and narrow signal bandwidth, and achieve the effect of flat spectrum, wide signal bandwidth and stable output.

Active Publication Date: 2017-04-12
GUANGDONG UNIV OF TECH
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Problems solved by technology

[0015] In order to solve the problems that the chaotic laser produced by the existing semiconductor laser has time delay characteristics, narrow signal bandwidth, and uneven spectrum, the present invention provides a chaotic semiconductor laser with no time delay, flat spectrum, and broadband photon integration

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  • Delay-free, spectrally flat, broadband photonic integrated chaotic semiconductor laser

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Embodiment Construction

[0023] No time delay, flat spectrum, broadband photonic integrated chaotic semiconductor laser, including chip substrate 1, optical waveguide 2, erbium-doped passive optical waveguide 3, left distributed feedback semiconductor laser chip 4, semiconductor optical amplifier without isolation and bidirectional amplification Chip 5, right distributed feedback semiconductor laser chip 6, high-speed photoelectric detection chip 7;

[0024] Among them, the left distributed feedback semiconductor laser chip 4, the non-isolated bidirectionally amplified semiconductor optical amplifier chip 5, and the high-speed photodetection chip 7 are all fixed on the left part of the upper surface of the chip substrate 1;

[0025] The right distributed feedback semiconductor laser chip 6 is fixed on the right part of the upper surface of the chip substrate 1;

[0026] The right end of the left distributed feedback semiconductor laser chip 4 is connected to the left end of the semiconductor optical a...

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Abstract

The invention relates to a semiconductor laser, in particular to a no-time-delay flat-frequency-spectrum broadband photon integrated chaos semiconductor laser which solves the problems that chaos lasers generated by an existing semiconductor laser have the time delay characteristic, the signal band width is small, and the frequency spectrum is not flat. The no-time-delay flat-frequency-spectrum broadband photon integrated chaos semiconductor laser comprises a chip substrate, an optical waveguide, an erbium-doped passive optical waveguide, a left distributed feedback semiconductor laser chip, a no-isolation two-way amplified semiconductor light amplification chip, a right distributed feedback semiconductor laser chip and a high-speed photoelectric detection chip. The no-time-delay flat-frequency-spectrum broadband photon integrated chaos semiconductor laser is suitable for the fields of synchronization of chaos, secrecy light communication, high-speed random number secret key generation, laser radar, optical fiber network fault detection, ultra broadband technology, distributed optical fiber sensing and the like.

Description

technical field [0001] The invention relates to a semiconductor laser, in particular to a chaotic semiconductor laser with no time delay, flat frequency spectrum and broadband photon integration. Background technique [0002] As a special output form of lasers, chaotic laser has the characteristics of randomness and wide frequency spectrum. Research in the past ten years has shown that chaotic lasers have shown important value in the fields of chaotic synchronization and secure optical communication, high-speed random number key generation, laser radar, optical fiber network fault detection, ultra-wideband technology, and distributed optical fiber sensing. Due to the characteristics of light weight, small size, high conversion efficiency, long life, and strong integration, semiconductor lasers have become the most important devices for researchers to generate chaotic lasers. [0003] There are optical feedback, optical injection, photoelectric feedback and hybrid perturbati...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S5/10H01S5/068
Inventor 王云才张明江王安帮张建忠刘慧赵彤
Owner GUANGDONG UNIV OF TECH
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