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Fast temperature tuning for optical receivers

A light receiver, temperature range technology, applied in the direction of electromagnetic receivers, optics, instruments, etc.

Pending Publication Date: 2021-09-28
PICADVANCED公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

TWF can be e.g. thin film filter

Method used

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  • Fast temperature tuning for optical receivers
  • Fast temperature tuning for optical receivers
  • Fast temperature tuning for optical receivers

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Embodiment Construction

[0023] Even though an illustrative implementation of one or more embodiments is provided herein, the disclosed schemes and / or methods may also be embodied in other specific forms without departing from essential characteristics thereof. Therefore, the disclosed embodiments should in no way be limited to the descriptive designs, drawings, implementations and techniques explained herein, since they describe only typical embodiments of the invention.

[0024] figure 1 is a schematic diagram of an example of repeated channels in a periodic TWF over the operating temperature range, where four channels are considered. Therefore, in order to select a suitable channel from four channels, TWF is used at the receiving end of NG-PON2ONU. And in order to select a channel from OLT to ONU transmission channels, that is, DS direction, a temperature-controlled TWF can be used. The temperature of the TWF is set to the temperature of the desired channel (eg T1, T2, T3, T4).

[0025] For peri...

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Abstract

A new and improved tunable optical receiver based on thermal optics and controllers for technologies that require fast wavelength channel tuning. The device entails a thermal control system in which a wavelength tunable filter, a sensor and at least two thermal actuators enables fast tuning, which are controlled by advanced algorithms. The key compositions of both parts are outlined and their main requirements are discussed.

Description

technical field [0001] The present invention relates to fast temperature tuning in a tunable optical receiver, where tunable optics are used to receive different wavelength channels. More precisely, exemplary embodiments of the present invention relate to a Next Generation Passive Optical Network Phase 2 (NG-PON2) Optical Network Unit (ONU) with integrated wavelength tunable optics controlled by a control mechanism, which may be a controller transceiver. Background technique [0002] The tunable optical receiver is used to select a specified wavelength channel through an optical filter. NG-PON2 is an example of a technology that requires a tunable optical receiver, because the main feature that differentiates this technology from the existing Passive Optical Network (PON) standard is that it requires the industry's first optical distribution network that supports multiple wavelengths and is based on power splitters (ODN) compatible PON standard. [0003] Two technologies ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/67G02B26/00
CPCG02B7/1815G02B26/001H04B10/60H04B10/671
Inventor 里卡多·曼努埃尔·达·席尔瓦·费雷拉弗朗西斯科·曼努埃尔·鲁伊沃·罗德里格斯何塞·米格尔·拉兰热拉·利马
Owner PICADVANCED公司
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