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Optical transmitter or transceiver including transmitter optical subassembly (TOSA) modules directly aligned to optical multiplexer inputs

一种发射子组件、光收发器的技术，应用在电磁收发器、光多路复用系统、光学元件等方向，能够解决光学效率或功率丢失等问题

Active Publication Date: 2017-12-15
APPLIED OPTOELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Optical efficiency or power may be lost due to insertion loss and / or polarization-dependent loss (PDL) caused by optical components in optical transceivers

Method used

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  • Optical transmitter or transceiver including transmitter optical subassembly (TOSA) modules directly aligned to optical multiplexer inputs
  • Optical transmitter or transceiver including transmitter optical subassembly (TOSA) modules directly aligned to optical multiplexer inputs
  • Optical transmitter or transceiver including transmitter optical subassembly (TOSA) modules directly aligned to optical multiplexer inputs

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Embodiment Construction

[0014] A multi-channel optical transmitter or transceiver according to the present invention includes an optical transmit subassembly (TOSA) module optically coupled to and directly aligned with the multiplexer input of the optical multiplexer Fiber optics are not used. The optical multiplexer may comprise an arrayed waveguide grating (AWG) or an inverted planar lightwave circuit (PLC) splitter, and may be located in a multiplexer housing having at least one side wall having a Input holes for multiplexer input alignment. A light transmitting subassembly (TOSA) module may include a base supporting at least one laser, laser driving circuitry, and a lens for focusing light output from the laser. Z-rings can be used to facilitate alignment and mount the optical transmit subassembly (TOSA) base to the side wall of the multiplexer housing, for example by laser welding.

[0015] Aligning the Optical Transmit Subassembly (TOSA) module directly with the multiplexer input eliminates t...

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Abstract

A multi-channel optical transmitter or transceiver includes transmitter optical subassembly (TOSA) modules optically coupled to and directly aligned with mux input ports of an optical multiplexer without using optical fibers. The optical multiplexer may include an arrayed waveguide grating (AWG) or a reversed planar lightwave circuit (PLC) splitter and may be located in a multiplexer housing having at least one side wall with input apertures aligned with the mux input ports. The TOSA modules may include a base supporting at least a laser, laser driving circuitry, and a lens for focusing the light output from the laser. Z-rings may be used to facilitate alignment and to mount the TOSA bases to the side wall of the multiplexer housing, for example, by laser welding.

Description

technical field [0001] The present invention relates to optical transmitters and transceivers, and more particularly, to optical transmitters or transceivers having optical transmit subassembly (TOSA) modules aligned directly to the input of an optical multiplexer. Background technique [0002] Optical transceivers are used to transmit and receive optical signals for a variety of applications including, but not limited to, Internet data centers, cable television broadband, and fiber-to-the-home (FTTH) applications. Optical transceivers provide higher speeds and bandwidths over longer distances than, for example, transmission over copper cables. The desire to deliver higher speeds at lower cost in smaller optical transceiver modules has presented challenges, for example with regard to maintaining optical efficiency (power), thermal management, and manufacturing yield. An optical transceiver may include one or more transmit optical subassemblies (TOSA) and receive optical sub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/42G02B6/12
CPCG02B6/12019G02B6/4287G02B6/4295G02B6/4296H04J14/0307G02B6/4215G02B6/4231G02B6/4256G02B6/43H04B10/506H04J14/0256H04B10/40H04B10/503H04B10/572H04B10/66
Inventor 何宜龙梁永宣陈史黛拉凉
Owner APPLIED OPTOELECTRONICS
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