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JDSU in EDFA Recall

Evidence has come to light indicating that JDS Uniphase Inc. (Nasdaq: JDSU; Toronto: JDU) has had to replace hundreds of defective Erbium Doped-Fiber Amplifiers (EDFAs) in equipment that at least one of its customers had already shipped to carriers.

The customer in question, Marconi PLC (Nasdaq/London: MONI) had to recall “a few hundred” amplifiers with faulty JDSU EDFAs, according to Steve Ferguson, Marconi’s photonics market strategy manager.

The problem was discovered last April, and all of the amplifiers had been replaced by the fourth quarter of 2001, according to Ferguson. Marconi had kept careful records of the part numbers used in the manufacture of the amplifiers and was thus able to locate them quickly. Ferguson says JDSU was very helpful in getting the suspect parts replaced.

Telecom Italia was one of the carriers that had to return amplifiers to Marconi after encountering problems, according to Ferguson. “We might have been the first to find the problem," he adds. Telecom Italia’s amplifiers have particularly powerful pump lasers that might have resulted in early failure of JDSU’s EDFAs.

Ferguson says the problem occurred because the pump lasers generated harmonics that caused epoxy in the EDFAs to deteriorate, and this in turn led to problems with couplers embedded in the epoxy. He wasn’t absolutely sure that it was couplers; it may have been filters, as another source suggests.

Ferguson didn’t know whether other systems vendors using JDSU’s EDFAs had recalled amplifiers, or whether the whole problem was now in the past.

One source, who requested anonymity, indicates the problem with JDSU's EDFAs may not be limited to Marconi. It's possible that other JDSU customers -- perhaps including Lucent Technologies Inc. (NYSE: LU) and Nortel Networks Corp. (NYSE/Toronto: NT) -- have experienced problems similar to Marconi's. Neither Lucent nor Nortel was able to comment at press time.

A JDSU spokesperson says she is unaware of any product recalls or of the situation at Telecom Italia.

— Mary Jander, Senior Editor, and Peter Heywood, Founding Editor, Light Reading
http://www.lightreading.com
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mstresh 8/23/2017 | 6:38:05 PM
re: JDSU in EDFA Recall Hey Component_Guy, not sure if you'll get this seeing as how late to the party I am.  I have a few questions.  Shoot me an email me at "matthew dot streshinsky at elenion dot com"
SolitonResearcher 12/4/2012 | 11:37:48 PM
re: JDSU in EDFA Recall Hey ComponentGuy,

U seem to be the most clued up on the EDFA recall by JDSU....I have a few questions about it (mainly how does one know if one has got a dodgy component from JDSU?). How can I contact u?

oh, and Sorry for being about 18 months off the topic here...been stuck in a lab for a while....

Cheers,

SR.
realoptics 12/4/2012 | 11:00:07 PM
re: JDSU in EDFA Recall We've been wondering for a long time on how good JDSU is on EDFAs, our past suspicious has been that they are not as good as they had appeard compare to the inproportional numbers of orders they have got in the past. As a matter of fact, their devices, especially the devices from the former Etek group are junky, but a lot of customers had bought in becaue their name(heritage), this article is so good that it confirmed what we've been speculating on is correct.

Remeber, in 1993 JDSU has fewer than 100 employees in Ottawa and the guys graduated from top Canadian universities at the time will refuse to take jobs there. This indicates heritage does not mean a lot, in either way.
FiberGuy 12/4/2012 | 11:00:06 PM
re: JDSU in EDFA Recall Why is Marconi announcing this if JDS is "denying" it? What would they have to gain?
tjob 12/4/2012 | 11:00:02 PM
re: JDSU in EDFA Recall So the JDSU spokesperson was unaware of any recalls.....very carefully worded.

Mary & Peter -- was the JDSU spokesperson unaware of the component in question or the JDS diagnosed problem with said component, or was she just unaware of a recall? Hmmm....

I have read a JDS authored failure analysis report detailing the problem with the component in question, so I'm fairly certain someone in the company is aware of the problem. As far as I know JDS has not issued a recall of the component and I can see how the spokesperson would be unaware of any customer initiated recalls.





Peter Heywood 12/4/2012 | 11:00:00 PM
re: JDSU in EDFA Recall FiberGuy, Marconi didn't "announce" this. I asked Ferguson about it, and he told me, after checking internally.

As a subsequent poster pointed out, the fact that the JDS spokesperson wasn't aware of a recall is, how shall we put it, interesting.

It implies other JDS customers may not have been alerted to the potential problem, and may have carried on incorporating the suspect EDFAs in their gear.

In other words, there may be more to this story.

Peter
benson 12/4/2012 | 11:00:00 PM
re: JDSU in EDFA Recall To all;

I think you'll be hearing more about this matter. Cisco also had a problem with JDSU's EDFA's, due to a component problem. Actually, it was the former Pirelli system for Global Crossing (of all people!). Keep your ears open for this one....

Benson
Physical_Layer 12/4/2012 | 10:59:59 PM
re: JDSU in EDFA Recall "I think you'll be hearing more about this matter. Cisco also had a problem with JDSU's EDFA's, due to a component problem. Actually, it was the former Pirelli system for Global Crossing (of all people!). Keep your ears open for this one...."

Benson - very consistent with what I've heard too...same path from JDS -> Cisco -> GX.

Component_Guy 12/4/2012 | 10:59:57 PM
re: JDSU in EDFA Recall This problem cropped up in August 2000 with another customer. JDSU cooperated with that customer to replace the bad parts (hundreds) and the problem was kept quiet.

Component_Guy
e-fiber 12/4/2012 | 10:59:54 PM
re: JDSU in EDFA Recall What was the component in question?
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