Silicon-based external cavity laser with adjustable wavelength and power

A laser, silicon-based technology, applied in the field of silicon-based external cavity lasers with adjustable wavelength and adjustable power, can solve the problems such as the inability to meet the adjustable power and the limited use range of tunable lasers, and achieve the effect of narrow linewidth

Active Publication Date: 2017-05-31
WUHAN POST & TELECOMM RES INST CO LTD
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Problems solved by technology

However, the existing external cavity lasers can basically satisfy the wavelength tunable...

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  • Silicon-based external cavity laser with adjustable wavelength and power
  • Silicon-based external cavity laser with adjustable wavelength and power
  • Silicon-based external cavity laser with adjustable wavelength and power

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0025] Such as figure 1 As shown, the silicon-based external cavity laser with adjustable wavelength and power of the present invention includes a light source 1, a first silicon-based optical coupler 2, a first multimode interferometer 31, a second multimode interferometer 32, a first A silicon-based micro-ring filter 41 , a second silicon-based micro-ring filter 42 and an asymmetric Mach-Zehnder interferometer 5 . The output end of the light source 1 is connected to the input end of the first silicon-based optical coupler 2. Preferably, the light source is an SOA chip or an LD chip, and the first silicon-based optical coupler 2 is an end face coupler or a grating coupler. The output end 2 of the first silicon-based optical coupler is connected to the input end of the first multimode interferometer (MMI) 31, and the output end of the first m...

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Abstract

The invention discloses a silicon-based external cavity laser with adjustable wavelength and power and relates to the field of integrated optics of optical communication. The silicon-based external cavity laser is characterized in that the output end of a light source is connected with a first silicon-based optical coupler, the first silicon-based optical couple is connected with a first multimode interferometer, the first multimode interferometer is connected with a first silicon-based microloop filter and a second silicon-based microloop filter, a second multimode interferometer is arranged between the first silicon-based microloop filter and the second silicon-based microloop filter, the second multimode interferometer is provided with two output ends, and one output end is connected with the second silicon-based microloop filter while the other serves the output of the entire silicon-based external cavity laser; the silicon-based external cavity laser further comprises an asymmetric Mach-Zehnder interferometer which is arranged between the first silicon-based microloop filter and the second silicon-based microloop filter; thermal resistance is loaded on the two silicon-based microloop filters and the asymmetric Mach-Zehnder interferometer. By the arrangement, the adjustable wavelength and power is realized, and range of application of the tunable laser is increased.

Description

technical field [0001] The invention relates to the field of integrated optics of optical communication, in particular to a silicon-based external cavity laser with adjustable wavelength and adjustable power. Background technique [0002] In recent years, with the development of coherent optical communication technology, high-performance tunable lasers are indispensable. High-speed coherent communication systems require tunable lasers to have wide tuning range, high frequency stability, narrow linewidth, high power, low power consumption, small size, and low cost. At present, tunable laser technology solutions that can meet the requirements of coherent optical communication systems are divided into two categories: monolithic integrated type and external cavity type. Among them, the monolithic integrated type mainly includes SGDBR (Sampled grating distributed bragg reflector, sampling grating distributed Bragg reflector), array DFB (Distributed FeedBack, distributed feedback...

Claims

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Application Information

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IPC IPC(8): H01S5/14
CPCH01S5/141
Inventor 邱英肖希陈代高王磊李淼峰杨奇
Owner WUHAN POST & TELECOMM RES INST CO LTD
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