Laser Safety Method For Duplex Open Loop Parallel Optical Link

Title: Laser Safety Method For Duplex Open Loop Parallel Optical Link

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Abstract

A method and apparatus are provided to ensure that laser optical power does not exceed a "safe" level in an open loop parallel optical link in the event that a fiber optic ribbon cable is broken or otherwise severed. A duplex parallel optical link includes a transmitter and receiver pair and a fiber optic ribbon that includes a designated number of channels that cannot be split. The duplex transceiver includes a corresponding transmitter and receiver that are physically attached to each other and cannot be detached therefrom, so as to ensure safe, laser optical power in the event that the fiber optic ribbon cable is broken or severed. Safe optical power is ensured by redundant current and voltage safety checks.

Inventors:

Baumgartner, Steven John ^[1]; Hedin, Daniel Scott ^[2]; Paschal, Matthew James ^[2]

Zumbro Falls, MN
Rochester, MN

Issue Date:: 2003-12-02

OSTI Identifier:: 879658

Patent Number(s):: 6658030

Application Number:: 09/618221

Assignee:: International Business Machines Corporation (Armonk, NY)

Patent Classifications (CPCs):: H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04J - MULTIPLEX COMMUNICATION

H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04B - TRANSMISSION

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H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04J - MULTIPLEX COMMUNICATION
H04J14/0221 - {Power control, e.g. to keep the total optical power constant}

H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04B - TRANSMISSION
H04B10/032 - using working and protection systems {

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DOE Contract Number:: B338307

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Citation Formats


                    Baumgartner, Steven John, Hedin, Daniel Scott, and Paschal, Matthew James. Laser Safety Method For Duplex Open Loop Parallel Optical Link.  United States: N. p., 2003. 
        Web.

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                    Baumgartner, Steven John, Hedin, Daniel Scott, & Paschal, Matthew James. Laser Safety Method For Duplex Open Loop Parallel Optical Link.  United States.

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                    Baumgartner, Steven John, Hedin, Daniel Scott, and Paschal, Matthew James. Tue .  
        "Laser Safety Method For Duplex Open Loop Parallel Optical Link".  United States.  https://www.osti.gov/servlets/purl/879658.

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@article{osti_879658,

  title        = {Laser Safety Method For Duplex Open Loop Parallel Optical Link},

  author       = {Baumgartner, Steven John and Hedin, Daniel Scott and Paschal, Matthew James},

  abstractNote = {A method and apparatus are provided to ensure that laser optical power does not exceed a "safe" level in an open loop parallel optical link in the event that a fiber optic ribbon cable is broken or otherwise severed. A duplex parallel optical link includes a transmitter and receiver pair and a fiber optic ribbon that includes a designated number of channels that cannot be split. The duplex transceiver includes a corresponding transmitter and receiver that are physically attached to each other and cannot be detached therefrom, so as to ensure safe, laser optical power in the event that the fiber optic ribbon cable is broken or severed. Safe optical power is ensured by redundant current and voltage safety checks.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2003},

  month        = {12}

}

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