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Wavelength Tunable External Cavity Laser and Tunable Optical Transmitter Module

A technology of lasers and wavelengths, applied in lasers, laser components, semiconductor lasers, etc., can solve problems such as optical power stability, and achieve the effects of easy batch production, broad application prospects, and low loss

Active Publication Date: 2018-12-25
GUANGXUN SCI & TECH WUHAN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the wavelength of the output optical signal of this type of laser is determined by the free spectral range of the FP laser, and it is difficult to accurately align with the wavelength channel value specified by ITU-T; the multi-FP cavity effect generated by the injection locking scheme also exists in optical power stability. question

Method used

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  • Wavelength Tunable External Cavity Laser and Tunable Optical Transmitter Module
  • Wavelength Tunable External Cavity Laser and Tunable Optical Transmitter Module
  • Wavelength Tunable External Cavity Laser and Tunable Optical Transmitter Module

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Embodiment Construction

[0053] Further description will be given below in conjunction with the accompanying drawings and embodiments.

[0054] image 3It is a specific implementation example of a silicon-based external cavity tunable laser. The silicon-based external cavity tunable laser includes a semiconductor optical amplifier chip 9, which generates stimulated radiation after injecting current; Fabry Perot grid filter 7, phase The adjuster 6 and the silicon-based microring chip 1 jointly constitute the external cavity of the laser, and the left end faces of the silicon-based micro-ring chip 1 and the semiconductor optical amplifier chip 9 are two feedback end faces of the laser.

[0055] One end of the light-emitting end surface of the semiconductor optical amplifier chip 9 is coated with an AR film, and the other end is coated with an HR mode, and its gain region is a semiconductor gain amplifier with an oblique linear waveguide or an arc waveguide.

[0056] The phase adjuster 6 is an optical e...

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Abstract

The present application relates to a wavelength-tunable external cavity laser, comprising a semiconductor optical amplifier chip and a laser external cavity, wherein the laser external cavity includes a grid filter, a phase adjuster and a silicon-based microring chip; wherein, the grid filter A wavelength tunable optical filter is formed with the silicon-based microring chip, and the optical filter formed by the grid filter and / or the spectral line tuning of the silicon-based microring chip is realized. wavelength tuning. The micro-ring filter in the silicon-based micro-ring chip of the tunable external cavity laser is made by mature silicon photonics technology, which can greatly reduce the manufacturing difficulty of the tunable filter and the manufacturing cost of the device. The smooth transition of the external cavity tunable laser technology platform improves the integration of this type of device and simplifies the fabrication process.

Description

technical field [0001] The present invention relates to a laser emitting device, in particular to a method for realizing a wavelength tunable external cavity laser and a tunable optical transmitting module, in particular to a hybrid integrated silicon-based waveguide microring-based tunable external cavity laser. The laser can be used in multi-wavelength optical communication network and coherent optical communication system. Background technique [0002] Due to its narrow linewidth (less than 100kHz), excellent edge-to-edge rejection ratio (greater than 45dB), and wide wavelength tuning range (greater than 40nm), external cavity tunable lasers have become the transmitter of 100Gbit / s and above coherent wavelength splitting optical communication systems. Mainstream choice for source and receiver local oscillator lasers. [0003] In addition, when using wavelength division multiplexing-passive optical network (WDM-PON) and hybrid time division-wavelength division multiplexi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S5/06H01S5/14
CPCH01S3/1062H01S5/0064H01S5/02446H01S5/142H01S5/06H01S5/14H01S5/50
Inventor 胡胜磊傅焰峰唐毅张玓李世瑜汤学胜钱坤马卫东胡强高
Owner GUANGXUN SCI & TECH WUHAN
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