Another vote for Approved here, awesome group of people and very thorough in their testing and fault analysis. We buy from them for Juniper, Ciena, Mellanox, Intel and a bunch of other random stuff.

I’ve had mixed results with FS. Some stuff works fine, others we have high failure rates on longer term after 18 months give or take a little bit. The failed units typically come from interfaces that run at very high utilization levels 24x7 but have never done any more correlation than that. 

Sent from my iPhone

On Sep 20, 2019, at 11:44 AM, Carl Peterson <carl-lists@portnetworks.com> wrote:

We have had some failures with 10G BiDi optics coded for Juniper.  We buy a ton of other stuff from FS but for optics we have moved over to Approved Optics for everything but active ethernet residential subscribers.  

On Fri, Sep 20, 2019 at 7:33 AM Nicholas Warren <nwarren@barryelectric.com> wrote:
Anyone have experience with fs.com's lasers? Are they reliable?