High-speed high-power light emitting module based on parallel recombination of reconstructed equivalent chirp laser array chips

Abstract

The invention discloses a high-speed high-power transmitting module based on parallel recombination of reconstructed equivalent chirp laser array chips, which comprises the reconstructed equivalent chirp laser array chips, optical lead bonding, a planar optical waveguide multiplexer, an AIN carrier, a semiconductor cooler and a feedback loop, the feedback loop comprises a beam splitter, a photoelectric detector and a constant power drive circuit. According to the method, starting from the characteristic that the reconstructed equivalent chirp laser device controls the wavelength in a high-precision manner, the parallel recombined reconstructed equivalent chirp laser device array is utilized to generate laser beams with equal wavelengths, and the same time sequence of the laser beams of each channel is ensured by controlling the bonding length of the planar optical waveguide multiplexer and the optical lead. Meanwhile, a feedback loop and a temperature control circuit are added to guarantee stable output of laser beams, and output of high-speed and high-power laser signals is achieved. The device design and the manufacturing process are not complex, the cost is reduced compared with a traditional high-power laser module, and large-scale manufacturing and using can be achieved.

Description

technical field [0001] The invention belongs to the field of optical fiber communication, and in particular relates to a high-speed and high-power transmitting module. Background technique [0002] With the development of the information age, people's requirements for communication speed are getting higher and higher. Conventional communication methods are no longer suitable for high-speed information transmission. Optical fiber communication has gradually become the pillar of the development of the information industry and played a fundamental role in the entire information industry. The supporting role of optical fiber communication has far-reaching significance to many fields such as social livelihood and security. Information will be lost in the process of optical fiber transmission. In the past, in order to ensure the quality of signal transmission, a large number of relay stations were built to receive, convert and amplify the signal to increase the signal level to com...

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Problems solved by technology

[0004] However, in recent years, as people have higher and higher requirements for system performance, although the introduction of EDFA has solved the problem of signal amplification on the one hand, it also brings spontaneous radiation noise, which reduces the signal-to-noise ratio of the original signal.

At the same time, the extra power consumption and cost caused by the introduction of EDFA to the original system are also key issues that the industry has always hoped to solve.

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