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Multi-channel tunable laser

A multi-channel, laser technology, applied in lasers, laser devices, semiconductor lasers, etc., can solve the problems of large package impact, severe process, high cost, and achieve the effect of reducing chip space, saving optical amplifiers, and halving the size

Active Publication Date: 2019-09-13
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently available tunable lasers have harsh processes or suffer from large packages
Higher cost due to wasted chip space or manufacturing process complexity

Method used

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Embodiment Construction

[0074] The following detailed description is presented in conjunction with the accompanying drawings, which form a part hereof, and show by way of illustration specific aspects in which the invention may be practiced. It is to be understood that other aspects may be utilized and structural or logical changes may be made without departing from the scope of the present invention. Accordingly, the following detailed description is not to be taken as limiting, but the scope of the present invention is defined by the appended claims.

[0075] It should be understood that comments made in relation to one described method may also apply to a corresponding device or system for performing the method, and vice versa. For example, if a specific method step is described, a corresponding device may include a unit for performing the described method step, even if this unit is not explicitly described or shown in the figures. Furthermore, it should be understood that the features of the var...

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Abstract

A multi-channel tunable laser (100) comprises: a frequency selective optical multiplexer (101), a plurality of channel paths (105), and a plurality of optical tuners (3). Each channel path (105) is coupled to a corresponding channel terminal (103) of the plurality of channel terminals (103) and includes a gain element (7), a phase element (6) and a reflective element (8); each optically tuned A device is used to tune the channel waveguide (4) of a corresponding channel waveguide block (104) of the plurality of channel waveguide blocks (104). The frequency selective optical multiplexer comprises: a plurality of channel terminals (103) for receiving / transmitting light; a plurality of channel waveguide blocks (104), each channel waveguide block (104) including at least one reflective terminal (1) a channel waveguide (4); and an optical coupling element (5) optically coupling the plurality of channel terminals (103) and the plurality of channel waveguide blocks (104), each of the plurality of channel waveguide blocks (104) The channel waveguides (4) have different lengths.

Description

technical field [0001] The invention relates to a multi-channel tunable laser, in particular to a wide-range tunable multi-channel laser using half an arrayed waveguide grating (AWG) to tune multiple optical channels and a multi-channel tuning laser method. Background technique [0002] Wavelength-agile single-frequency laser diodes are considered essential components for various telecommunication applications. Such laser diodes can be used as a replacement for fixed wavelength emitters. When a wavelength multiplexing (WDM) communication system operates on a large number of optical wavelength channels, a large number of fixed-wavelength transmitters must be used as spare parts, which generates high additional costs. However, with a broadly tunable laser capable of operating on any available optical channel, the cost can be significantly reduced. Tunable lasers are becoming key enabling components of optical networks. They can be used for functions such as packet switching...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S5/125H01S5/40H01S5/06G02B6/42G02B6/12
CPCH01S5/0607H01S5/0612H01S5/1007H01S5/1092H01S5/141H01S5/4062H01S5/0261H01S5/0268H01S5/0287H01S5/06246H01S5/1212H04B10/503H04J14/00
Inventor 拉姆西·萨利姆卡尔·博伊兰伊恩·里阿尔曼理查德·怀亚特大卫·罗杰斯
Owner HUAWEI TECH CO LTD
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