A 10G xPON OLT STICK optical module

Abstract

This utility model discloses a 10G xPON OLT STICK optical module, including a 10G xPON OLT MAC unit, an XFI interface unit, a digital diagnostic control unit, a soft-start unit, a power supply unit, a clock unit, a QSPI Nor flash unit, a 10G xPON OLT Driver unit, an APD boost / burst RSSI sample-and-hold unit, an EA negative pressure control unit, a TEC temperature control unit, and an XGSPON OLT BOSA unit. This utility model integrates MAC functionality, supports parallel 10G PON and active Ethernet services, supports multi-vendor interoperability, complies with ITU-T G.9807.1 standard specifications, and provides high-bandwidth access capabilities for 10G PON FTTH / FTTB. It supports small pluggable (SFP+) symmetrical 10Gb / s OLT modules for use with routers and switches.

Description

Technical Field

[0001] This utility model relates to the field of optical module technology, specifically a 10G xPON OLT STICK optical module. Background Technology

[0002] PON technology is a crucial method for carrying broadband access network services. With the development and popularization of high-bandwidth services such as 4K video and virtual reality, the demand for bandwidth continues to grow. The existing 100M / 200M access bandwidth can no longer meet users' service needs. The broadband industry is entering the gigabit era, and 10G PON has a very bright future in optical access networks. It will surely occupy a dominant position in the broadband market in the near future. Many domestic and foreign operators have launched gigabit-to-the-home products to significantly enhance their competitiveness. Broadband access requires the support of PON technology. To achieve the leap from "100 Mbps" to "gigabit", PON technology needs to be upgraded to 10G PON. Therefore, 10G PON is gradually becoming the mainstream technology of PON networks. In the post-pandemic era, major operators have significantly reduced capital expenditures and urgently need a low-cost 10G PON access device.

[0003] Meanwhile, with global warming, extreme high temperatures occur around the world every summer, making the working environment of outdoor base stations extremely harsh. Core optical components overheat and fail, causing frequent communication failures. Utility Model Content

[0004] The purpose of this invention is to provide a 10G xPON OLT STICK optical module, a 10G xPON OLT STICK optical module with integrated MAC function, which has the characteristics of small package, low cost, and low power consumption, in order to solve the existing problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a 10G xPON OLT STICK optical module, comprising a 10G xPON OLT MAC unit, an XFI interface unit, a digital diagnostic control unit, a soft-start unit, a power supply unit, a clock unit, a QSPI Nor flash unit, a 10G xPON OLT Driver unit, an APD boost / burst RSSI sample-and-hold unit, an EA negative pressure control unit, a TEC temperature control unit, and an XGSPON OLT BOSA unit. The 10G xPON OLT MAC unit is connected to the XFI interface unit, providing a 10.3125G uplink interface. The 10G xPON OLT MAC unit is connected to the 10G xPON OLT Driver unit, converting uplink Ethernet services into multi-rate xPON services. The 10G xPON OLT Driver unit is connected to the XGSPON OLT via an EML bias circuit. The BOSA unit connects and drives the laser to convert XGSPON / XGPON / GPON downlink services into optical signals and send them to the ONT. At the same time, it restores the optical signals of uplink services from the ONT into electrical signals.

[0006] The XFI interface unit is connected to the soft-start unit, the soft-start unit is connected to the 10G xPON OLT Driver unit, the soft-start unit is connected to multiple power supply units, and the multiple power supply units are respectively connected to the 10G xPON OLT MAC unit. The 10G xPON OLT MAC unit is connected to multiple clock units. The XGSPON OLT BOSA unit is respectively connected to the APD boost / burst RSSI sampling and holding unit, the EA negative pressure control unit, and the TEC temperature control unit.

[0007] The digital diagnostic control unit is connected to the 10G xPON OLT Driver unit to achieve precise control of the 10G xPON OLT Driver, meeting the timing requirements of XGSPON / XGPON / GPON. The digital diagnostic control unit is also connected to the APD boost / burst RSSI sample-and-hold unit to provide precise high-voltage control for the APD, ensuring its normal operation, and simultaneously sampling the RSSI signal to monitor the uplink light intensity of each ONT in real time. The digital diagnostic control unit is also connected to the EA negative pressure control unit to achieve 12-bit high-precision digital control of the EA. Furthermore, the digital diagnostic control unit is connected to the TEC temperature control unit and the XGSPON OLT BOSA to achieve precise temperature control of the XGSPON OLT BOSA semiconductor, ensuring the EML laser operates at a constant temperature for industrial applications. The digital diagnostic control unit is also connected to the XFI interface unit to provide the switch with real-time digital diagnostic information for this module, including temperature, voltage, bias current, transmit optical power, and receive optical power. The digital diagnostic control unit is connected to the 10G xPON OLT... The MAC unit connection also provides the MAC with real-time digital diagnostic information such as temperature, voltage, bias current, transmitted optical power, and received optical power of the module.

[0008] Preferably, the multiple sets of power supply units are three sets, namely a 0.9V power supply unit, a 1.8V power supply unit, and a 3.3V power supply unit, wherein the 1.8V power supply unit is connected to the 10G xPON OLT Driver unit and the QSPI Nor flash unit, respectively.

[0009] Preferably, the multiple sets of clock units are two sets, namely a 20MHz clock unit and a 155.52MHz clock unit.

[0010] Compared with existing technologies, the beneficial effects of this invention are as follows: This 10G xPON OLT STICK optical module integrates MAC functions, supports parallel 10G PON and active Ethernet services, supports multi-vendor interoperability, conforms to ITU-T G.9807.1 standard specifications, and is applicable to a rich variety of OAM types for all access / services, providing high-bandwidth access capabilities for 10G PON FTTH / FTTB; at the same time, this invention supports small pluggable (SFP+) symmetrical 10Gb / s OLT modules, which, when used with routers and switches, provide a simple, pluggable, low-power access solution, reducing edge transmission, routing, and switching costs. By reasonably adjusting the size of the high-density OLT platform, costs, footprint, and power consumption are reduced to maximize the operator's return on investment.

[0011] This invention provides 10G bandwidth access capability, has online bandwidth management function, and can monitor remote ONT in real time; with the help of TEC semiconductor temperature control function, it maintains a constant temperature inside the laser cavity, solves the problem of large packet loss caused by the extreme high temperature working environment outdoors, and improves the lifespan of optical modules, providing technical support for the evolution of 10G access network towards intelligent premium network. Attached Figure Description

[0012] Figure 1 This is a functional block diagram of the 10G xPON OLT STICK optical module of this utility model. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1 The present invention provides an embodiment of a 10G xPON OLT STICK optical module, comprising a 10G xPON OLT MAC unit, an XFI interface unit, a digital diagnostic control unit, a soft-start unit, a power supply unit, a clock unit, a QSPI Nor flash unit, a 10G xPON OLT Driver unit, an APD boost / burst RSSI sample-and-hold unit, an EA negative pressure control unit, a TEC temperature control unit, and an XGSPON OLT BOSA unit. The 10G xPON OLT MAC unit is connected to the XFI interface unit, providing a 10.3125G uplink interface. The 10G xPON OLT MAC unit is connected to the 10G xPON OLT Driver unit, converting uplink Ethernet services into multi-rate xPON services, achieving seamless connection between Ethernet and XGSPON / XGPON / GPON services. The 10G xPON OLT Driver unit is connected to the XGSPON OLT via an EML bias circuit. The BOSA unit connects and drives the laser to convert XGSPON / XGPON / GPON downlink services into optical signals and send them to the ONT. At the same time, it restores the optical signals of uplink services from the ONT into electrical signals.

[0015] The XFI interface unit is connected to the soft-start unit, which is connected to the 10G xPON OLT Driver unit. The soft-start unit is connected to multiple power supply units, which are each connected to the 10G xPON OLT MAC unit. There are three power supply units: a 0.9V power supply unit, a 1.8V power supply unit, and a 3.3V power supply unit. The 1.8V power supply unit is connected to both the 10G xPON OLT Driver unit and the QSPI Nor flash unit. The 10G xPON OLT MAC unit is connected to two clock units: a 20MHz clock unit and a 155.52MHz clock unit. The XGSPON OLT BOSA unit is connected to the APD boost / burst RSSI sample and hold unit, the EA negative pressure control unit, and the TEC temperature control unit.

[0016] The digital diagnostic control unit is connected to the 10G xPON OLT Driver unit to achieve precise control of the 10G xPON OLT Driver and meet the timing requirements of XGSPON / XGPON / GPON. The digital diagnostic control unit is connected to the APD boost / burst RSSI sample and hold unit to provide precise high voltage control for the APD, ensuring the normal operation of the APD, while sampling the RSSI signal and monitoring the uplink light intensity of each ONT in real time. The digital diagnostic control unit is connected to the EA negative pressure control unit to achieve 12-bit high-precision digital control of the EA.

[0017] The digital diagnostic control unit connects to the TEC temperature control unit and the XGSPON OLT BOSA, respectively, to achieve precise temperature control of the XGSPON OLT BOSA semiconductor, ensuring that the EML laser operates at a constant temperature for industrial applications. The digital diagnostic control unit also connects to the XFI interface unit, providing the switch with real-time digital diagnostic information such as temperature, voltage, bias current, transmit optical power, and receive optical power of the module. Furthermore, the digital diagnostic control unit connects to the 10G xPON OLT MAC unit, also providing the MAC with real-time digital diagnostic information such as temperature, voltage, bias current, transmit optical power, and receive optical power of the module.

[0018] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A 10G xPON OLT STICK optical module, comprising a 10G xPON OLT MAC unit, an XFI interface unit, a digital diagnostic control unit, a soft-start unit, a power supply unit, a clock unit, a QSPI Nor flash unit, a 10G xPON OLT Driver unit, an APD boost / burst RSSI sample-and-hold unit, an EA negative pressure control unit, a TEC temperature control unit, and an XGSPON OLTBOSA unit, characterized in that: The 10G xPON OLT MAC unit is connected to the XFI interface unit, providing a 10.3125G uplink interface. The 10G xPON OLT MAC unit is connected to the 10G xPON OLT Driver unit, converting the uplink Ethernet service into a multi-rate xPON service. The 10G xPON OLT Driver unit is connected to the XGSPON OLT BOSA unit through an EML bias loop. The XFI interface unit is connected to the soft-start unit, the soft-start unit is connected to the 10G xPON OLT Driver unit, the soft-start unit is connected to multiple power supply units, and the multiple power supply units are respectively connected to the 10G xPON OLT MAC unit. The 10G xPON OLT MAC unit is connected to multiple clock units. The XGSPON OLT BOSA unit is respectively connected to the APD boost / burst RSSI sampling and holding unit, the EA negative pressure control unit, and the TEC temperature control unit. The digital diagnostic control unit is connected to the 10G xPON OLT Driver unit to control the 10G xPON OLT Driver. It is also connected to the APD boost / burst RSSI sample-and-hold unit to provide precise high-voltage control for the APD. Furthermore, it is connected to the EA negative pressure control unit to achieve 12-bit high-precision digital control of the EA. The digital diagnostic control unit is also connected to the TEC temperature control unit and the XGSPON OLT BOSA to achieve precise temperature control of the XGSPON OLT BOSA semiconductor. Finally, it is connected to the XFI interface unit to provide the switch with real-time digital diagnostic information for this module. Finally, it is connected to the 10G xPON OLT MAC unit.

2. The 10G xPON OLT STICK optical module according to claim 1, characterized in that: The power supply units consist of three groups: a 0.9V power supply unit, a 1.8V power supply unit, and a 3.3V power supply unit. The 1.8V power supply unit is connected to the 10G xPON OLT Driver unit and the QSPI Nor flash unit, respectively.

3. The 10G xPON OLT STICK optical module according to claim 1, characterized in that: The clock units mentioned above are in two groups, namely a 20MHz clock unit and a 155.52MHz clock unit.

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