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Laser transceiving device, manufacturing method thereof and method for improving temperature operation range thereof

A laser transceiver and laser technology, applied in laser parts, lasers, phonon exciters, etc., can solve the problems of increasing the cost and power consumption of TOSA and SFP, considering the integration of optical transceiver modules, complex design, etc., and achieving low cost , the effect of easy mass production and wide temperature working range

Active Publication Date: 2015-01-07
WUHAN HUAGONG GENUINE OPTICS TECH CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method requires complex design and requires a very complex manufacturing process to integrate many additional components on the optical base in TO-CAN, thus increasing the cost and power consumption of TOSA and SFP
[0009] However, none of the above methods considered the overall optical transceiver module, and failed to make full use of the existing conditions of the module to design a low-cost, easy-to-manufacture integrated transceiver module that can work in a wider temperature range.

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  • Laser transceiving device, manufacturing method thereof and method for improving temperature operation range thereof
  • Laser transceiving device, manufacturing method thereof and method for improving temperature operation range thereof
  • Laser transceiving device, manufacturing method thereof and method for improving temperature operation range thereof

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Embodiment Construction

[0046] The laser transceiver device of the present invention, its manufacturing method and the method of increasing its temperature operating range will be further described in detail below in conjunction with the accompanying drawings and the embodiments of the present invention.

[0047] The basic idea of ​​the present invention: the temperature of the pluggable integrated laser transceiver module such as SFP or SFP+ in the prior art is usually monitored by a temperature sensor mounted on the module circuit board. For a specific design of a transceiver module, there is usually a fixed temperature difference between the laser diode and the module circuit board. Therefore, the temperature of the laser diode can be determined by detecting the temperature of the module circuit board. If the temperature reported by the module is low, it means that the temperature of the emitting laser diode is also low. In this way, the microprocessor control unit (MCU) on the module can decide ...

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Abstract

The invention discloses a laser transceiving device, a manufacturing method thereof and a method for improving temperature operation range thereof. A low-cost laser transmitter module TOSA (transmitter optical subassembly) is utilized to broaden the temperature operation range of laser transceiving integration modules of a small form-factor pluggable transceiver (SFP) or an SFP+ and the like, and a heater and a laser diode are packaged and integrated in the TOSA of a TO-CAN. Operation temperature of the SFP+ laser transceiving module is monitored by integrating a temperature sensor on a circuit board of the SFP+, or operation temperature of a TOSA laser is calculated by detecting bias current and output power of the laser, the heater in the TOSA positioned on the laser transceiving module is controlled through a heat control circuit and software, the software starts the control circuit and supplies power to the heater to heat the laser diode if the detected temperature is lower than a set threshold, and the software switches off the control circuit to stop heating the laser diode if the detected temperature is higher than the set threshold.

Description

technical field [0001] The invention relates to optical fiber communication technology, in particular to a small laser transceiver device, its manufacturing method and a method for improving its temperature operating range. The small laser transceiver device is specifically a small form-factor pluggable transceiver (SFP) and SFP+ with temperature monitoring function and temperature control of a laser diode packaged in a Transmitter Optical Subassembly (TOSA). and other optical transceiver integrated modules. Background technique [0002] With the wide application of optical fiber communication technology in backbone network, city area network, local area network, data center and wireless network communication, it conforms to SFP+MSA standard (SFF-8431 Specifications for Enhanced Small Form Factor Pluggable Module SFP+, Revision 4.1, 6th of July 2009 ) Low-cost and relatively easy-to-manufacture Small Pluggable Optical Transceiver Module (SFP+) has become more and more pop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/42H01S5/024
Inventor 王文陆王长虹张振峰
Owner WUHAN HUAGONG GENUINE OPTICS TECH CO LTD
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