Recent content by daniel1211

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    Engineering Electrical Engineer Seeking Career Advice

    I’m hoping that I can find some career advice that can shine some light on my situation…I served in the Navy where my primary duty was working with the ships radar and communication systems as well as providing support with other electronic warfare systems. When I discharged from the Navy I got...
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    Extreme Fiber Coupled Laser Diode Power Loss

    It seems that the issue was due to the bulkhead connector.
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    Extreme Fiber Coupled Laser Diode Power Loss

    This is the link to the laser diode spec sheet http://www.blueskyresearch.com/fileupload/FiberTec_II_02-05-2015.pdf The fiber coupled laser diode uses a FC connector The fiber jumper used to connect to the power meter is ST to FC The source that we are using is a recent custom build and the...
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    Extreme Fiber Coupled Laser Diode Power Loss

    I was using a guide that was helping me convert dB to percentage, I must of made a mistake. Either way I still don't understand why my source channels are outputting less then 10mW when after considering loss they should be outputting around 50mW and are rated at 60mW. For example when I first...
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    Extreme Fiber Coupled Laser Diode Power Loss

    What could cause a laser source with fiber coupled laser diodes to have extreme loss of power? The laser diodes have a wavelength of 658nm and have an output rated at 60mW but it seems as though the optical channels actually output ranges between 58 to 70mW. During some troubleshooting I...
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    Max Power Output of 60mW: Troubleshooting Solutions

    Thanks Simon, I am using laser sources that each have 32 channels, each channel has a single mode FC terminated fiber that is coupled to a 658nm laser diode with a 60mW max output. The FC connected fiber is then mated to a FC to ST bulkhead adapter. I've connected an optical power meter that...
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    Max Power Output of 60mW: Troubleshooting Solutions

    I have multiple sources that have a max power output of 60mW, I am using a power meter that can read up to 200mW but when I connect directly to the source channel I get approximately 15mW or less. I have tried a different meter and I have tried different sources only to end up with the same...
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    Optical Probe Clarity: Examining Power Loss vs. Beam Spot

    I work in a lab that uses laser probes to test for vibration and other data, currently the lab techs hook up the probe to a laser source and check to see how bright and clear the beam spot is. I have been working on having a signal power budget created for each probe using a laser source and...
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    100um Core MM Fiber connected to 50um Core 10G SFP Module

    Thank you the_emi_guy! It's specialty fiber and the run is through an industrial environment, so that is why we can't replace it. I was trying to re-purpose the fiber so that we could get a 10gig connection. I'm trying to track down the actual specs.
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    100um Core MM Fiber connected to 50um Core 10G SFP Module

    I have two systems that are approx. 300-400ft apart that I am connecting via a 10 Gig fiber connection. The fiber I am using is a 100um core MM fiber and the switches will be using a 50um core OM4 (4700 MHz*km) SFP module. Is there a way to find out what type of loss I should be expecting, is...
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    Undergrad Detecting Falling Objects with a LiDAR

    I would like to detect if objects are being thrown over a balcony, edge, bridge, etc... but I would also like to avoid false positives such as a bird.
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    Comparing Optical Signal Power with RMS Voltage

    Thanks everyone for your help, I was able to reproduce the results while testing my systems which allowed me to easily determine the quality of the analog output signal. One issue that I ran into was that some of the channels on the laser detectors were sending out inverse signals but when...
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    Undergrad Detecting Falling Objects with a LiDAR

    I am experimenting with a LiDAR system, one of my goals is to detect falling objects. The scanning frequency is 100Hz with an angular resolution of 1°. I have been able to detect an object if it is a certain size or greater moving horizontally but I'm not sure what I should focus on to make sure...
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    Comparing Optical Signal Power with RMS Voltage

    I have a CW laser system, the optical detector receives a pulse width modulated signal and converts it to an analog signal. Both the source and detector have 32 channels and I would like to know what the analog signal power is, I thought maybe I could use the RMS voltage received on the...