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External cavity laser with tunable wavelength and adjustable light emitting module

A laser and wavelength technology, used in lasers, laser parts, semiconductor lasers, etc., can solve problems such as problems of optical power stability, and achieve easy mass production, low tuning power consumption, and miniaturization of optical modules. Effect

Active Publication Date: 2015-10-07
GUANGXUN SCI & TECH WUHAN
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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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  • External cavity laser with tunable wavelength and adjustable light emitting module
  • External cavity laser with tunable wavelength and adjustable light emitting module
  • External cavity laser with tunable wavelength and adjustable light emitting module

Examples

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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 invention relates to an external cavity laser with tunable wavelength, comprising a semiconductor light amplifier chip and a laser external cavity. The laser external cavity comprises a grid filter, a phase regulator and a silicon-based micro ring chip, wherein the grid filter and the silicon-based micro ring chip constitute a wavelength tunable optical filter, which realizes the wavelength tuning of the consisted optical filter through spectral line tuning of the grid filter and / or the silicon-based micro ring chip. The micro ring filter in the silicon-based micro ring chip of the tunable external cavity adopts the mature silicon photonic technology, which greatly reduces the manufacture difficulties of the tunable filter, reduces the manufacture cost of the member, utilizes the current external cavity laser technology platform to perform smooth transition, improves the integration degree of the member of this kind, and simplifies the preparation technology.

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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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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