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A reflection device and tunable laser

A reflection device and laser technology, applied in the field of communication, can solve the problems of tunable laser performance deterioration, tunable laser disconnection, low temperature, etc.

Active Publication Date: 2021-03-30
HISILICON OPTOELECTRONICS CO LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the actual manufacturing process, the suspended structure needs to be connected to other areas of the tunable laser through the support structure to form a support, and cannot be completely disconnected from the tunable laser. Therefore, the temperature of the area close to the support structure is low, and the temperature of the area between the support structures High, the temperature distribution uniformity of the reflection device is poor, which further leads to the deterioration of the reflection performance of the grating, and finally leads to the deterioration of the performance of the tunable laser

Method used

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  • A reflection device and tunable laser
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  • A reflection device and tunable laser

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Embodiment Construction

[0055] Embodiments of the present application provide a reflection device and a tunable laser, which are used to reduce heat loss during thermal tuning, ensure uniform temperature distribution of the reflection device during thermal tuning, and improve thermal tuning efficiency.

[0056] In order to enable those skilled in the art to better understand the solutions of the present application, the following will describe the embodiments of the present application with reference to the drawings in the embodiments of the present application.

[0057] The "first" or "second" mentioned in the present application documents are used to distinguish similar objects, and not necessarily used to describe a specific sequence or sequence. In addition, "comprising" or "having" and any variations thereof mentioned in the application documents are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not ne...

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Abstract

Disclosed are a reflection device and a tunable laser, which are used for ensuring the uniform temperature distribution of the reflection device during thermal tuning and improving the efficiency of thermal tuning. The present application comprises: a light transmission layer and a ridge protruding from the light transmission layer, wherein a surface, away from the light transmission layer, of the ridge is provided with a first group of heaters and a second group of heaters, which are separated from each other; a part of the light transmission layer on a first side of the ridge is provided with a first supporting arm and a second supporting arm, which are separated from each other; an end face, close to the ridge, of the first supporting arm is a first end face that extends in a direction perpendicular to the ridge to form a first flat plate, and at least some of the first group of heaters are arranged in a region where the surface, away from the light transmission layer, of the ridge intersects with the first flat plate; and an end face, close to the ridge, of the second supporting arm is a second end face that extends in a direction perpendicular to the ridge to form a second flat plate, and at least some of the second group of heaters are arranged in a region where the surface, away from the light transmission layer, of the ridge intersects with the second flat plate.

Description

technical field [0001] The present application relates to the communication field, in particular to a reflection device and a tunable laser. Background technique [0002] In the field of optical communication, a tunable laser (tunable laser, TL) refers to a laser whose output wavelength can be adjusted within a certain range. Tunable lasers are mainly used in large-capacity wavelength division multiplexing transmission systems. With the explosive growth of information volume, the scale of the communication market continues to expand rapidly. In order to further increase bandwidth, coherent modulation technology is used and becomes a long-distance optical fiber with a rate of 100G and above. The industry's mainstream solution for transmission. At present, the structure of the more classic tunable laser is as follows: figure 1 As shown, it consists of four sections: the gain section, the front reflector, the back reflector and the phase section. [0003] The tunable laser a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/01G02B6/124G02B6/122G02B6/12
CPCG02B6/12G02B6/122G02B6/124G02B2006/12104G02B2006/12142G02F1/0147G02F1/01
Inventor 武林陈宏民朱宁军
Owner HISILICON OPTOELECTRONICS CO LIMITED
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