Compare surface emitting LED with edge emitting LED

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written 7.8 years ago by

SR. No.	SLED	ELED
1.	Easy to fabricate	Difficult to fabricate
2.	Easy to mount and handle	Difficult to mount and handle
3.	Require less critical tolerances	Need critical tolerance on fabrication
4.	Less Reliable	Highly reliable
5.	Low system performance	High system performance
6.	Less modulation Bandwidth	Better Modulation, Bandwidth of the order of hundreds of MHz
7.	Couple less optical power into low NA fiber	Couple more optical power into low NA fiber
8.	Light is emitted from the surface of active Layer	Light is emitted from edge of active Layer
9.	Wider spectral width	Narrow spectral width
10.	Maximum quantum efficiency is up to 60%	Internal quantum efficiency is in the range of 60% to 80%

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