Fiber Optic light source

With multimode fiber optic network, what's the light source?
Laser or LED?
Reply to
dandelion
Loading thread data ...
Every application I've seen uses high power LED's and photoreceptors at the far end.
Lasers (even higher power than LED's) are used on single mode fiber.
John
Reply to
John P. Dearing
I believe it is Laser with multimode fiber "dandelion" schreef in bericht news: snipped-for-privacy@4ax.com...
Reply to
CCNA Nerd
Laser for both MM and SM surely?
Reply to
big si
Because this is a networking forum Im going to assume that the application your speaking of is digital data transmission (ie ethernet), so in that context the answer is "both"
LEDs and LASER LEDs are kissing cousins and are both used to drive fiberoptic transmission systems. In general terms "regular" LEDs are typically used in multimode, low bandwidth, low distance systems. In contrast, LASER LEDs are more often (but not always) used in single-mode, high bandwidth, long reach applications.
DD
Reply to
Dick Dastardly
Dick Dastardly is correct. 1550nm Single mode is driven with a laser. Multi-Mode can be driven with either, depending on temperature... 850nm MM is driven with an LED. 1300nm MM is driven with a laser can someone confirm?
Reply to
Curt Corwin
Yip That is Correct
Curt Corw>> With multimode fiber optic network, what's the light source?
Reply to
Davey

Cabling-Design.com Forums website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.